A UV disinfection reactor has one or more UV-LED units combined with an open channel vessel and operated by a controller. Each UV-LED unit contains multiple UV-LEDs. At least some of the UV-LEDs of a unit and/or a set of units can be controlled separately from other UV-LEDs of the unit and/or set of units. Control may be varied vertically and optionally relative to a direction of flow through the vessel. The controller may be connected to sensors or other signals providing information, for example relating to water flow, UV transmittance and/or water elevation. Control of the UV-LEDS may be such that UV-LEDs are on only when submerged and/or so that a number of UV-LEDs turned ON is sufficient to provide a desired degree of disinfection.
An apparatus has a plurality of gas transfer membranes. The apparatus floats in water with the membranes submerged in the water. To treat the water, a gas is supplied to the membranes and is transferred to a biofilm supported on the membranes or to the water. Gas is also used to supply mixing or membrane scouring bubbles to the water. The mixing or scouring bubbles can be provided by a cyclic aeration or other gas supply system, which optionally provides gas at a variable pressure to the membranes in parallel or series with an aerator. Condensates can be removed from the membranes, and exhaust gasses from the membranes can be monitored, optionally through one or more dedicated pipes.
B01F 23/231 - Mélange de gaz avec des liquides en introduisant des gaz dans des milieux liquides, p. ex. pour produire des liquides aérés par barbotage
B01F 23/237 - Mélange de gaz avec des liquides en introduisant des gaz dans des milieux liquides, p. ex. pour produire des liquides aérés caractérisé par les propriétés physiques ou chimiques des gaz ou des vapeurs introduits dans le milieu liquide
B01F 101/00 - Mélange caractérisé par la nature des matières mélangées ou par le domaine d'application
09 - Appareils et instruments scientifiques et électriques
11 - Appareils de contrôle de l'environnement
Produits et services
Software for monitoring ozonation installations; measuring and monitoring apparatus and instruments applied to ozonation installations, namely, sensors for measuring concentrations of chemicals in water, scientific instrumentation for measuring concentrations of chemicals in water, electronic-based instruments for measuring environmental parameters including humidity, mold, bacteria, air quality and water quality, scientific apparatus for use with membrane filtration, namely, water filter controllers and computer software for detecting and measuring water quality; programmable computer-controlled apparatus and electric installations for remote monitoring and remote control of ozone generation systems; contactors, namely, electrical components in the nature of electric contactors for bringing together ozone or ozonated air with the product to be treated in ozonation installations Electric apparatus and instruments for generating ozone from gases such as air or oxygen for sanitizing air and water; Electrostatic apparatus and installations for water treatment and purification
A method for removing or preventing organosulfur foulant material on structural parts is provided. The method includes adding a treatment composition to a liquid, gaseous or multiphase stream in contact with the organosulfur foulant material. The treatment composition includes one or more of (i) a hydroxylamine compound, (ii) an amine-formaldehyde reaction product, (iii) a bisulfite salt, (iv) a thiosulfate salt, (v) a salt of a hydroxyl amine compound, and (vi) an aldehyde. A composition for removing or preventing organosulfur foulant material on structural parts is also provided.
C10G 75/04 - Inhibition de la corrosion ou des salissures dans des appareils de traitement ou de conversion des huiles d'hydrocarbures, en général par addition d'agents antisalissures
C02F 5/10 - Traitement de l'eau avec des produits chimiques complexants ou des agents solubilisants pour l'adoucissement, la prévention ou l'élimination de l'entartrage, p. ex. par addition d'agents séquestrants en utilisant des substances organiques
C10G 7/10 - Moyens pour empêcher la corrosion pendant la distillation
5.
METHOD OF REDUCING AND PREVENTING POLYMER FOULING AND AGGLOMERATION IN PROCESSES FOR PRODUCING ETHYLENICALLY UNSATURATED MONOMERS AND COMPOSITIONS RELATED THERETO
12142331431100210011002100100 hydroxy-substituted alkylene moiety; M is hydrogen or a water-soluble cation; R is an alkyl group; a is 0-100; and the molar ratio of b:c is from 30:1 to 1:20.
Verification plates for a bacterial endotoxin reader are provided, namely a temperature verification plate (TVP) and optical verification plate (OVP). The TVP has a body configured to be placed on a spindle of said reader and rotated by said spindle. The body has a temperature verification circuit with a temperature sensor and a temperature indicator. The temperature sensor is configured to measure a temperature of the body rotated by the spindle of the reader. The temperature indicator optically represents a value of the temperature measured by the temperature sensor. The temperature indicator is readable by an optical bench of the reader. The OVP has a body with a plurality of apertures located along a periphery that line up with an optical bench of the reader. Light produced by a light source of the reader can pass through the aperture and an intensity measured by a photodetector of the reader.
B01L 3/00 - Récipients ou ustensiles pour laboratoires, p. ex. verrerie de laboratoireCompte-gouttes
G01K 3/04 - Thermomètres donnant une indication autre que la valeur instantanée de la température fournissant des valeurs moyennesThermomètres donnant une indication autre que la valeur instantanée de la température fournissant des valeurs intégrées par rapport au temps
G01K 13/08 - Thermomètres spécialement adaptés à des fins spécifiques pour mesurer la température de corps solides en mouvement en mouvement rotatif
7.
CLEANING COMPOSITION AND METHOD FOR REMOVING SCALE DEPOSITS IN DESALINATION APPLICATIONS
Provided herein are compositions and methods for cleaning distillation units, parts of a desalination unit, or process unit surfaces, and/or for removing inorganic and organic scaling from such units, comprising mixtures of short chain organic acids; mixtures of substituted carboxylic acids; mixtures of phosphonic acids and/or phosphonates; mixtures of chelating agents; or mixtures of carboxylate copolymers, homopolymers, and/or terpolymers.
C02F 1/04 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par chauffage par distillation ou évaporation
C02F 5/10 - Traitement de l'eau avec des produits chimiques complexants ou des agents solubilisants pour l'adoucissement, la prévention ou l'élimination de l'entartrage, p. ex. par addition d'agents séquestrants en utilisant des substances organiques
C02F 5/12 - Traitement de l'eau avec des produits chimiques complexants ou des agents solubilisants pour l'adoucissement, la prévention ou l'élimination de l'entartrage, p. ex. par addition d'agents séquestrants en utilisant des substances organiques contenant de l'azote
C02F 5/14 - Traitement de l'eau avec des produits chimiques complexants ou des agents solubilisants pour l'adoucissement, la prévention ou l'élimination de l'entartrage, p. ex. par addition d'agents séquestrants en utilisant des substances organiques contenant du phosphore
C02F 1/66 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par neutralisationAjustage du pH
A spiral wound membrane module has a brackish water RO or NF membrane combined with a permeate carrier having a narrow spacing between membrane contacting elements. The membrane may have water permeability (A-Value) of at least 8*10−5 cm/s/bar at 25° C. The membrane may have salt diffusion rate (B-Value) of at least 0.5*10−5 cm/s at 25° C. The permeate carrier may have a density of 54 wales per inch or more of a gap between adjacent ribs of 215 um or less. The permeate carrier may have a channel cross-sectional area of 16*10−9 m2 or more. Water is fed to the module at a high feed pressure, for example a pressure of at least 50 bar, optionally up to 120 bar. Retentate may be discharged at a concentration of 100 g/L, 130 g/L, or 150 g/L or more.
B01D 69/02 - Membranes semi-perméables destinées aux procédés ou aux appareils de séparation, caractérisées par leur forme, leur structure ou leurs propriétésProcédés spécialement adaptés à leur fabrication caractérisées par leurs propriétés
C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
C02F 103/08 - Eau de mer, p. ex. pour le dessalement
9.
POLYMERIZATION INHIBITORS FOR HIGH TEMPERATURE ETHYLENE FRACTIONATION TRAINS
A method for inhibiting polymerization, gum formation and fouling of an atypical, high temperature ethylene fractionation train comprising treating the atypical, high temperature ethylene fractionation train with a composition including effective amounts of one or more quinone methides of the formula:
A method for inhibiting polymerization, gum formation and fouling of an atypical, high temperature ethylene fractionation train comprising treating the atypical, high temperature ethylene fractionation train with a composition including effective amounts of one or more quinone methides of the formula:
A method for inhibiting polymerization, gum formation and fouling of an atypical, high temperature ethylene fractionation train comprising treating the atypical, high temperature ethylene fractionation train with a composition including effective amounts of one or more quinone methides of the formula:
wherein R1, R2, and R3 are independently selected from the group consisting of H, —OH, —SH, —NH2, alkyl, cycloalkyl, heterocyclo, and aryl; or one or more phenylene diamines, optionally, in combination with one or more hindered phenols.
The present disclosure provides a method for reducing or removing azole-based compounds from a wastewater, such as a semiconductor wastewater. The method includes adding a solution comprising transition metal (II) ions to a wastewater that includes an azole compound; and allowing the transition metal (II) ions and the azole compound in the wastewater to form a transition metal-azole complex in the wastewater. The transition metal ions may be Cu2+ ions and/or Zn2+ ions.
C02F 1/66 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par neutralisationAjustage du pH
C02F 1/68 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par addition de substances spécifiées, pour améliorer l'eau potable, p. ex. par addition d'oligo-éléments
C02F 101/38 - Composés organiques contenant de l'azote
C02F 103/34 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'industrie chimique non prévue dans les groupes
11.
PROCESS FOR TREATING DYEING EFFLUENT STREAM WITH SODIUM SULFATE RECOVERY
After an initial treatment to reduce COD and color, dyeing effluent is treated by membrane filtration, preferably with nanofiltration membranes. The membrane permeate is suitable for reuse for various industrial processes, for example in a textile plant. The membrane reject is rich in sodium sulfate. After optional hardness removal, the membrane reject may be used in a dyeing process. Use of the membrane reject reduces the amount of Glauber's salt required in a textile dyeing process.
A method of removing hydrogen sulfide from an industrial process fluid, the method comprising adding a treatment composition to the industrial process fluid, wherein the treatment composition comprises a mixture of a formaldehyde-based sulfide scavenger and a bisulfite and/or a phosphonium.
C02F 1/68 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par addition de substances spécifiées, pour améliorer l'eau potable, p. ex. par addition d'oligo-éléments
C10G 29/06 - Sels métalliques ou sels métalliques déposés sur un support
C10G 29/20 - Composés organiques ne renfermant pas d'atomes métalliques
C10G 29/24 - Composés organiques ne renfermant pas d'atomes métalliques contenant de l'oxygène comme seul hétéro-atome aldéhydes ou cétones
C10G 75/04 - Inhibition de la corrosion ou des salissures dans des appareils de traitement ou de conversion des huiles d'hydrocarbures, en général par addition d'agents antisalissures
C02F 103/36 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'industrie chimique non prévue dans les groupes provenant de la fabrication de composés organiques
13.
BOOSTED STYRENE POLYMERIZATION RETARDER AND METHOD OF USE
A product and method for reducing fouling of a vinyl aromatic monomer including an effective amount of one or more sulfonic acids in combination with an effective amount of one or more polymerization inhibitors, or an effective amount of one or more polymerization retarders, or mixtures thereof.
This specification describes a module for supplying light to phototrophic organisms in water. Optionally, the module also has gas transfer membranes. In some examples, the module supports a phototrophic biofilm. In some examples, the module is inserted into a tank, which may be a process tank of a wastewater treatment system having a suspended biomass. The specification also describes a hybrid wastewater treatment system including phototrophic organisms and non-phototrophic organisms.
A demulsifier composition for resolving emulsions in renewable feedstocks is provided. The demulsifier composition including one or more dispersants. A method for lowering water content in a renewable feedstock and a method for removing contaminants in a renewable feedstock are also provided.
A cord for supporting a biofilm has a plurality of yarns. At least one of the yarns comprises a plurality of hollow fiber gas transfer membranes. At least one of the yarns extends along the length of the cord generally in the shape of a spiral. Optionally, one or more of the yarns may comprise one or more reinforcing filaments. In some examples, a reinforcing yarn is wrapped around a core. A module may be made by potting a plurality of the cords in at least one header. A reactor may be made and operated by placing the module in a tank fed with water to be treated and supplying a gas to the module. In use, a biofilm covers the cords to form a membrane biofilm assembly.
A tubular depth filter element has one or more concentric zones. Each zone includes layers of a melt blown filament. An additional filament oscillates through the depth of the element, traversing through part of the depth of the filament with each oscillation but traversing through substantially all of the depth of the element over multiple oscillations. The traversing filament is preferably biased towards the outside of the element. The depth filter element may be made by spraying filaments onto a rotating mandrel. The filaments of the concentric zones are sprayed from fixed nozzles spaced apart along the length of the mandrel. The traversing filament is sprayed from a nozzle assembly that moves laterally or has compound motion relative to the mandrel. For example, the nozzle assembly may oscillate relative to the mandrel while an air attenuator of the nozzle assembly oscillates relative to the remainder of the nozzle assembly.
This specification describes a membrane aerated biofilm reactor (MABR) and processes for nitritation, nitritation-denitritation or deammonification. The supply of oxygen through the gas-transfer membrane is limited to suppress the growth of nitrite oxidizing bacteria (NOB). Exhaust gas from an MABR unit may have an oxygen concentration of 4% or less. The process can optionally include one or more of: intermittent (batch) feed of process air; process air modulation; process air direction reversal; process air recycle; and, process air cascade flow. The process can optionally include adding a seed sludge containing anammox to a reactor, optionally after pre-treatment and selection. The process can optionally include pre-seeding an MABR media.
A method of processing brine comprising lithium. The method may include providing a feed brine and a draw brine to a first forward osmosis (FO) module, the feed brine and/or the draw brine comprising lithium, and forming a feed brine concentrate and a dilute draw brine; and providing the dilute draw brine to a first nanofiltration (NF) module, and forming a first NF retentate, at least a portion of which is optionally recycled to the FO module, and forming a first NF permeate comprising at least a portion of the lithium. The method may additionally include providing a first brine to an initial NF module that is upstream of the first FO module, and forming the feed brine that is provided to the FO module, and forming an initial NF retentate, at least a portion of which is optionally recycled to the first FO module and/or the first NF module.
B01D 61/00 - Procédés de séparation utilisant des membranes semi-perméables, p. ex. dialyse, osmose ou ultrafiltrationAppareils, accessoires ou opérations auxiliaires, spécialement adaptés à cet effet
C22B 3/22 - Traitement ou purification de solutions, p. ex. de solutions obtenues par lixiviation par des procédés physiques, p. ex. par filtration, par des moyens magnétiques
A treatment composition comprising a carboxylate surfactant solution comprising alkyl or alkenyl (C6-C22) succinic acids, alkyl or alkenyl (C6-C22) dicarboxylic acids, or mixtures thereof; and methods of use thereof.
C23F 14/02 - Prévention de l'entartrage ou des incrustations dans les appareils destinés à chauffer des liquides à des fins physiques ou chimiques par des moyens chimiques
F28G 9/00 - Nettoyage par lessivage ou par lavage, p. ex. avec des solvants chimiques
21.
METHOD TO PREVENT OR CLEAN ORGANIC FOULING IN STEAM GENERATING SYSTEMS
A treatment composition comprising a carboxylate surfactant solution comprising alkyl or alkenyl (C6-C22) succinic acids, alkyl or alkenyl (C6-C22) dicarboxylic acids, or mixtures thereof; and methods of use thereof.
C23F 14/02 - Prévention de l'entartrage ou des incrustations dans les appareils destinés à chauffer des liquides à des fins physiques ou chimiques par des moyens chimiques
22.
RENEWABLE FEEDSTOCK FOULING CONTROL WITH A SYNERGISTIC DISPERSANT & ANTIOXIDANT TREATMENT
Products and methods for reducing fouling in renewable fuel production processes comprising a synergistic combination of an effective amount of one or more dispersants, and an effective amount of one or more antioxidants, wherein the dispersants and antioxidants may be applied as a mixture or separately to the renewable fuel production process.
C10G 75/04 - Inhibition de la corrosion ou des salissures dans des appareils de traitement ou de conversion des huiles d'hydrocarbures, en général par addition d'agents antisalissures
C10L 1/183 - Composés organiques contenant de l'oxygène contenant des groupes hydroxyleLeurs sels au moins un groupe hydroxyle étant lié à un atome de carbone aromatique
Products and methods for reducing fouling in renewable fuel production processes comprising a synergistic combination of an effective amount of one or more dispersants, and an effective amount of one or more antioxidants, wherein the dispersants and antioxidants may be applied as a mixture or separately to the renewable fuel production process.
C10G 75/04 - Inhibition de la corrosion ou des salissures dans des appareils de traitement ou de conversion des huiles d'hydrocarbures, en général par addition d'agents antisalissures
C10L 1/183 - Composés organiques contenant de l'oxygène contenant des groupes hydroxyleLeurs sels au moins un groupe hydroxyle étant lié à un atome de carbone aromatique
A method for inhibiting melanoidin formation in a yeast propagation process, the method provides for adding a treatment composition to a molasses substance present in a yeast propagation process, wherein the treatment composition comprises a lecithin. A composition for a yeast propagation process, the composition having a lecithin, and a molasses substance.
A liquid composition for improving the flowability and/or rheology of a coke slurry solution, comprising a lignosulfonate derivative, a surfactant and one or more synergistic additives, and methods of use thereof.
An iron or aluminum-ore based composite and method of preparing the composite by (a) contacting a plurality of iron or aluminum ore particles with at least one water-soluble binding polymer to form an agglomeration, and (b) forming a composite.
A method of improving effluent brine quality, the method (i) providing a mud wash solvent comprising a hydrocarbon having a specific gravity less than that of a desalter brine to be treated; and (ii) adding the mud wash solvent to a mud wash stream of a desalter system to provide a treated effluent brine.
C10G 31/08 - Raffinage des huiles d'hydrocarbures, en l'absence d'hydrogène, par des méthodes non prévues ailleurs par traitement à l'eau
C02F 1/26 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par extraction
C02F 1/68 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par addition de substances spécifiées, pour améliorer l'eau potable, p. ex. par addition d'oligo-éléments
C02F 103/36 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'industrie chimique non prévue dans les groupes provenant de la fabrication de composés organiques
C10G 33/04 - Déshydratation ou désémulsification des huiles d'hydrocarbures par des moyens chimiques
B01J 20/22 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation contenant une substance organique
C02F 1/68 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par addition de substances spécifiées, pour améliorer l'eau potable, p. ex. par addition d'oligo-éléments
C02F 103/10 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de carrières ou d'activités minières
C02F 103/16 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de procédés métallurgiques, c.-à-d. de la production, de la purification ou du traitement de métaux, p. ex. déchets de procédés électrolytiques
C02F 103/18 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'épuration des effluents gazeux par voie humide
C02F 103/34 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'industrie chimique non prévue dans les groupes
C02F 103/36 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'industrie chimique non prévue dans les groupes provenant de la fabrication de composés organiques
30.
METHODS OF USING OILFIELD AND GASFIELD WASTE STREAMS TO SCAVENGE HEAVY METALS
Provided herein are compositions and methods for scavenging metals in industrial aqueous and non-aqueous streams, wherein the compositions and methods comprise the use of an effective amount of reaction products of hydrocarbon sweetening processes, wherein the reaction products comprise products of the reaction of hydrogen sulfide and hydrogen sulfide scavengers.
C02F 1/68 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par addition de substances spécifiées, pour améliorer l'eau potable, p. ex. par addition d'oligo-éléments
B01J 20/22 - Compositions absorbantes ou adsorbantes solides ou compositions facilitant la filtrationAbsorbants ou adsorbants pour la chromatographieProcédés pour leur préparation, régénération ou réactivation contenant une substance organique
C02F 103/10 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de carrières ou d'activités minières
C02F 103/16 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de procédés métallurgiques, c.-à-d. de la production, de la purification ou du traitement de métaux, p. ex. déchets de procédés électrolytiques
C02F 103/18 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'épuration des effluents gazeux par voie humide
C02F 103/34 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'industrie chimique non prévue dans les groupes
C02F 103/36 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'industrie chimique non prévue dans les groupes provenant de la fabrication de composés organiques
An antifouling dispersant composition having an alcohol polyoxyethylene (EO) ether (EO number 1-14), represented by the general formula
An antifouling dispersant composition having an alcohol polyoxyethylene (EO) ether (EO number 1-14), represented by the general formula
An antifouling dispersant composition having an alcohol polyoxyethylene (EO) ether (EO number 1-14), represented by the general formula
wherein R is an alkyl with about 3-20 carbon atoms; and n is 1-14.
C07C 7/20 - Emploi d'additifs, p. ex. pour la stabilisation
C02F 5/10 - Traitement de l'eau avec des produits chimiques complexants ou des agents solubilisants pour l'adoucissement, la prévention ou l'élimination de l'entartrage, p. ex. par addition d'agents séquestrants en utilisant des substances organiques
C02F 103/02 - Eau non contaminée, p. ex. pour l'alimentation industrielle en eau
C08G 65/00 - Composés macromoléculaires obtenus par des réactions créant une liaison éther dans la chaîne principale de la macromolécule
(1) Water filtration apparatus, namely, spiral wound reverse osmosis and nanofiltration membranes; water purification apparatus, namely, reverse osmosis water purification units; reverse osmosis membrane; reverse osmosis filtration units; water filtration apparatus and replacement parts namely, reverse osmosis membranes, filters, and spiral wound membrane filtration elements used in industrial processes for process water, drinking water and wastewater treatment applications.
Water filtration apparatus; water purification apparatus; reverse osmosis membrane; reverse osmosis filtration units; membranes, filters, brackish water reverse osmosis filter elements, and apparatus for use in water filtration, process separation, drinking water and wastewater treatment applications; apparatus and installations for lighting, heating, cooling, steam generating, cooking, drying, ventilating, water supply and sanitary purposes; all as far as included in class 11.
Water filtration apparatus; water purification apparatus; reverse osmosis membrane; reverse osmosis filtration units; water filtration apparatus and replacement parts in the nature of membranes, filters, brackish water reverse osmosis filter elements and filters for process water used within industrial processes, for drinking water, wastewater treatment applications, and process water applications
39.
UNDERDRAIN FOR MEDIA VESSEL AND METHOD OF CLEANING
An underdrain system for a media pressure vessel has a set of removable pipe sections located between an external header and the bottom of a vessel. Septa extend upwards from the removable pipe sections into the vessel. The header is attached to the bottoms of the removable pipe sections. Each pipe section, and its associated septum, may be removed individually. To clean the vessel, after media is removed from the vessel the pipe sections are removed sequentially while the header remains otherwise attached to the vessel. While a pipe section is removed, its associated septum is removed so that solids can be removed from the annulus between the septum and the vessel. In this way, media can be cleaned from the annuli without moving the external header or entering the vessel.
A method of preventing fouling in a quench system or charge gas compressor of an ethylene plant comprising adding to the system and/or compressor a dispersant chemistry comprising an effective amount of a reaction product formed by reaction of reactants (A), (B), and (C), wherein (A) comprises an alkyl substituted phenol of the structure Formula (I), (B) comprises a polyamine of the structure, Formula (II), and (C) comprising an aldehyde of the structure, Formula (III).
C10G 9/16 - Prévention ou enlèvement des incrustations
C10G 75/04 - Inhibition de la corrosion ou des salissures dans des appareils de traitement ou de conversion des huiles d'hydrocarbures, en général par addition d'agents antisalissures
41.
UNDERDRAIN AND SEPTA FOR MEDIA VESSEL AND METHOD OF CLEANING
An underdrain system for a media pressure vessel has a set of removable pipe sections located between an external header and the bottom of a vessel. Septa extend upwards from the removable pipe sections into the vessel by up to 16 inches. The septa may have diameters of 6 inches or more. The header is attached to the bottoms of the removable pipe sections. Each pipe section, and its associated septum, may be removed individually. To clean the vessel. after media is removed from the vessel the pipe sections are removed sequentially while the header remains otherwise attached to the vessel. While a pipe section is removed. its associated septum is removed so that solids can be removed from the annulus between the septum and the vessel. In this way. media can be cleaned from the annuli without moving the external header or entering the vessel.
An underdrain system for a media pressure vessel has a set of removable pipe sections located between an external header and the bottom of a vessel. Septa extend upwards from the removable pipe sections into the vessel. The header is attached to the bottoms of the removable pipe sections. To clean the vessel, the pipe sections are removed. While a pipe section is removed, its associated septum is removed so that solids can be removed from the annulus between the septum and the vessel. In this way, media can be cleaned from the annuli without moving the external header or entering the vessel. A cleaning mechanism includes an elongated member with a spray nozzle that may be moved within the vessel. The cleaning mechanism may be used to removed media adhered to the walls of the vessel, for example while the septa are removed.
A corrosion inhibiting composition for use in inhibiting the corrosion of the internal metallic surfaces of the equipment used in the processing of crude oil at temperatures between 350°F and 790°F comprising adding to the crude oil a corrosion inhibiting amount of a composition comprising (a) an organophosphorus chemistry; and (b) a dispersant chemistry.
C10G 7/10 - Moyens pour empêcher la corrosion pendant la distillation
C10G 75/02 - Inhibition de la corrosion ou des salissures dans des appareils de traitement ou de conversion des huiles d'hydrocarbures, en général par addition d'inhibiteurs de corrosion
44.
METHOD FOR PRODUCING POLYMERS WITH LOW RESIDUAL ACRYLAMIDE AND APPLICATION THEREOF
Provided herein are methods of reducing a residual acrylamide monomer content present in an acrylamide-based polymer emulsion comprising adding a treatment agent to the acrylamide-based polymer emulsion. Further provided herein are methods of preparing an acrylamide-based emulsion polymer comprising polymerizing a mixture comprising acrylamide monomers to form an acrylamide-based polymer emulsion; and adding a treatment agent to the acrylamide-based polymer emulsion.
C02F 5/08 - Traitement de l'eau avec des produits chimiques complexants ou des agents solubilisants pour l'adoucissement, la prévention ou l'élimination de l'entartrage, p. ex. par addition d'agents séquestrants
A treatment composition having anti-foulant and anti-corrosion properties is provided. The composition having a fatty amine and a diacid, where the diacid is a succinic acid or a linear saturated dicarboxylic acid having the formula: HO2C(CH2)nCO2H where n is a positive integer of at least 6. A method for treating dilution steam generator system is also provided.
C23F 14/02 - Prévention de l'entartrage ou des incrustations dans les appareils destinés à chauffer des liquides à des fins physiques ou chimiques par des moyens chimiques
47.
DERIVATIZED POLYAMINE POLYMERS FOR USE IN METAL SCAVENGING APPLICATIONS
Provided herein is a method of preparing a metal ion scavenger comprising adding an effective amount of a piperazine derivative to a polyamine and epihalohydrin condensation reaction. Further provided herein is a method of treating aqueous and non-aqueous streams comprising adding a metal ion scavenger prepared by adding an effective amount of a piperazine derivative to a polyamine and epihalohydrin condensation reaction to the aqueous and non-aqueous streams.
C02F 5/08 - Traitement de l'eau avec des produits chimiques complexants ou des agents solubilisants pour l'adoucissement, la prévention ou l'élimination de l'entartrage, p. ex. par addition d'agents séquestrants
48.
FUNCTIONALIZED POLYMERS FOR THE REMOVAL OF SOLUBLE AND INSOLUBLE TRANSITION METALS FROM WATER
A functionalized polymeric composition having a backbone, and at least one compound having at least one thiol-functional group or at least one amino-functional group. A method of preparing a functionalized polymeric composition, the method (i) providing a backbone; and (ii) reacting the backbone with an amino-thiol compound to obtain a functionalized polymeric composition. A method for removing metals from an aqueous stream, the method (i) providing a functionalized polymeric composition; (ii) adding the functionalized polymeric composition to an aqueous stream comprising a plurality of metal contaminants; (iii) allowing the polymeric composition to react with the metal contaminants to form an insoluble complex; and (iv) allowing the insoluble complex to settle out of solution or remove the insoluble complex through filtration.
Wastewater with high ammonia concentration is pre-treated before discharging it into a wastewater treatment plant treating lower strength wastewater, for example an activated sludge plant treating municipal sewage. The high strength wastewater is pre-treated to oxidize ammonia by contact with a fixed film supported on gas transfer membranes in a membrane aerated biofilm reactor. The pre-treatment may be a batch or continuous process. The pre-treatment can be controlled to remove ammonia to about the point of material alkalinity depletion. One or more parameters such as alkalinity, pH, or membrane exhaust oxygen concentration can be monitored to determine if alkalinity depletion has occurred or is about to occur. In some examples, the high strength wastewater is blended with wastewater having less ammonia and more alkalinity, for example municipal sewage or primary effluent. In some examples, the high strength wastewater is a liquid fraction of one or more sludges.
A multistage nanofiltration (NF) system for filtering a solute from a feed solution where a downstream NF stage is more permissive to the solute than an upstream NF stage. In some examples. the nanofiltration system includes a plurality of nanofiltration stages in series, where each nanofiltration stage is more permissive to the solute than the nanofiltration stage that is immediately upstream.
B01D 61/00 - Procédés de séparation utilisant des membranes semi-perméables, p. ex. dialyse, osmose ou ultrafiltrationAppareils, accessoires ou opérations auxiliaires, spécialement adaptés à cet effet
B01D 53/22 - Séparation de gaz ou de vapeursRécupération de vapeurs de solvants volatils dans les gazÉpuration chimique ou biologique des gaz résiduaires, p. ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par diffusion
A water treatment system has an ozonation unit (12), a biological sensor (16) and optionally a biological treatment unit (14). The biological sensor (16) measures the biodegradability of organic contaminants after ozonation. The biological sensor (16) may be a bio-electrochemical sensor that produces an electrical signal related to the metabolic activity of bacteria on an electrode of the sensor. The biological sensor (16) may be connected to a controller (18) adapted to adjust one or more operating parameters of the ozonation unit (12) or the biological treatment unit (16) or both. A method of treating water, and a method of controlling a water treatment process, using a biological sensor to measure the biodegradability of water are further described. The measurement may be used to adjust an upstream ozonation process or a downstream biological treatment process. The systems and methods may be used to remove refractory organic compounds or organic micro-pollutants from secondary or tertiary effluent from a municipal or industrial wastewater plant.
A composition for corrosion control in aqueous systems, the composition providing a formulation of a concentrated aluminum corrosion inhibitor; and (i) a polycarboxylic acid polymer, (ii) a sulfonic acid polymer, (iii) a combination of a polycarboxylic acid and a polysulfonic acid, (iv) an organic phosphonate, (v) a combination of a phosphonate and a polycarboxylic acid, or (vi) a combination of a phosphonate and a polysulfonic acid. A method for corrosion control in aqueous systems, the method providing a concentrated formulation, the concentrated formulation having an aluminum corrosion inhibitor and (i) a polycarboxylic acid polymer, (ii) a sulfonic acid polymer, (iii) a combination of a polycarboxylic acid and a polysulfonic acid, (iv) an organic phosphonate, (v) a combination of a phosphonate and a polycarboxylic acid, or (vi) a combination of a phosphonate and a polysulfonic acid; and delivering the concentrated formulation to an aqueous stream.
C23F 11/18 - Inhibition de la corrosion de matériaux métalliques par application d'inhibiteurs sur la surface menacée par la corrosion ou par addition d'inhibiteurs à l'agent corrosif dans d'autres liquides au moyen d'inhibiteurs inorganiques
C02F 5/10 - Traitement de l'eau avec des produits chimiques complexants ou des agents solubilisants pour l'adoucissement, la prévention ou l'élimination de l'entartrage, p. ex. par addition d'agents séquestrants en utilisant des substances organiques
C02F 5/14 - Traitement de l'eau avec des produits chimiques complexants ou des agents solubilisants pour l'adoucissement, la prévention ou l'élimination de l'entartrage, p. ex. par addition d'agents séquestrants en utilisant des substances organiques contenant du phosphore
C02F 103/02 - Eau non contaminée, p. ex. pour l'alimentation industrielle en eau
55.
System and method of non-pressurized sample conveyance
Various implementations include a system and methods for capture and transfer of a liquid sample from a process to a sample analysis device. In particular, a sample of fluid can be contained in a non-pressurized line and first and second air-operated valves may prevent the fluid from flowing through the line. A third air-operated valve may be positioned on a stub-out of the non-pressurized line between the first and second air-operated valves. A sample line, also configured to contain a sample of the fluid, can extend between the third air-operated valve and a sample analysis device to transfer the sample of fluid to the sample analysis device. A first pneumatic valve can control air flow to the first and second air-operated valves; a second pneumatic valve can control air flow to the third air-operated valve; and a third pneumatic valve can control low-pressure air injected into the sample line.
Various implementations include a reversible flow sampler including a housing, a housing cover, and a shuttle. The housing defines a sampler chamber with an inlet and an outlet, a first opening, and a second opening. The shuttle is movably disposed within the housing and coupled to the housing cover. The shuttle has a first shuttle position and a second shuttle position. In the first shuttle position, the shuttle fluidly connects the first opening with the sample chamber inlet and fluidly connects the second opening with the sample chamber outlet. In the second shuttle position, the shuttle fluidly connects the second opening with the sample chamber inlet and fluidly connects the first opening with the sample chamber outlet.
C02F 5/10 - Traitement de l'eau avec des produits chimiques complexants ou des agents solubilisants pour l'adoucissement, la prévention ou l'élimination de l'entartrage, p. ex. par addition d'agents séquestrants en utilisant des substances organiques
C08F 216/14 - Monomères contenant un seul radical aliphatique non saturé
C08F 220/06 - Acide acryliqueAcide méthacryliqueLeurs sels métalliques ou leurs sels d'ammonium
2322n22n 22n3144) alkyl, R5 is hydroxy substituted alkyl or alkylene having from 1 to 6 carbon atoms or a monomer comprising non-ionic hydroxyl groups selected from the group consisting of PEG-OH and others having 1 to 10 repeats; wherein c and d are positive integers; and e is a non-negative integer.
C08F 220/06 - Acide acryliqueAcide méthacryliqueLeurs sels métalliques ou leurs sels d'ammonium
C02F 5/10 - Traitement de l'eau avec des produits chimiques complexants ou des agents solubilisants pour l'adoucissement, la prévention ou l'élimination de l'entartrage, p. ex. par addition d'agents séquestrants en utilisant des substances organiques
C09K 15/08 - Compositions anti-oxydantesCompositions inhibant les modifications chimiques contenant des composés organiques contenant de l'oxygène contenant une fraction phénol ou quinone
60.
IMPROVED FOULING CONTROL IN PRODUCTION OF VINYL AROMATIC MONOMERS WITH DISPERSANT-BASED CHEMICAL TREATMENT
A product and method for reducing fouling of a vinyl aromatic monomer including a first composition comprising an effective amount of one or more dispersants and a second composition comprising an effective amount of one or more polymerization inhibitors, an effective amount of one or more polymerization retarders, or combinations thereof.
C09K 15/08 - Compositions anti-oxydantesCompositions inhibant les modifications chimiques contenant des composés organiques contenant de l'oxygène contenant une fraction phénol ou quinone
61.
FATTY ACID DERIVATIVES AND MIXTURES THEREOF FOR CORROSION PREVENTION IN STEAM GENERATION SYSTEMS
C23F 11/10 - Inhibition de la corrosion de matériaux métalliques par application d'inhibiteurs sur la surface menacée par la corrosion ou par addition d'inhibiteurs à l'agent corrosif dans d'autres liquides au moyen d'inhibiteurs organiques
C02F 5/10 - Traitement de l'eau avec des produits chimiques complexants ou des agents solubilisants pour l'adoucissement, la prévention ou l'élimination de l'entartrage, p. ex. par addition d'agents séquestrants en utilisant des substances organiques
Provided herein are methods for real-time monitoring of one or more industrial fluids for ionic species that involve analyzing a sample of the one or more industrial fluids using a system including a capillary electrophoresis device and a processor; detecting, by way of a detector, one or more ionic species in the sample; and generating, in real-time, by way of the processor, an ionic species data profile for the sample.
A method of minimizing popcorn polymer seed formation, the method adding a treatment composition to a monomer containing system. A method for inhibiting popcorn polymer growth, the method adding a treatment composition to a monomer containing system, wherein the treatment composition comprises a quinone methide, a quinone methide derivative, or a quinone methide analogue based compound, and wherein the system comprises popcorn seed or polymer.
An immersed membrane cassette has a high tank intensity achieved by one or more of: reduced module to module gap; using structural hollow tubing in at least parts of a frame in place of separate permeate and/or air pipes; and, using vertical permeate port connections. The cassette has a tank intensity over 650 m2/m2. The cassette may be combined with a fine screen. This specification also describes an immersed membrane module having a permeate port and/or connector on the top of a header. The permeate connection between the module and a permeate collection tube may be vertical, i.e. perpendicular to the length of the header. A piston seal may be used between the permeate port of the header and the permeate collection tube. The permeate collection tube may be a horizontal structural member on the periphery of a frame that holds the module.
A method for cleaning a water filtration membrane, the method having at least an alkaline cleaning step, wherein the method includes a first enzyme solution comprising a polypeptide having carbohydrase activity, and a second enzyme solution comprising a polypeptide having protease activity.
A method for inhibiting polymerization, gum formation and fouling of an atypical, high temperature ethylene fractionation train comprising treating the atypical, high temperature ethylene fractionation train with a composition including effective amounts of one or more quinone methides of the formula (I) wherein R1, R2, and R3 are independently selected from the group consisting of H, —OH, —SH, —NH2, alkyl, cycloalkyl, heterocyclo, and aryl; or one or more phenylene diamines, optionally, in combination with one or more hindered phenols.
Wastewater is treated though primary treatment of the water by way of a micro-sieve to produce a primary effluent and primary sludge. There is secondary treatment of the primary effluent by way of a membrane bioreactor (MBR) or an integrated fixed film activated sludge (IFAS) reactor to produce a secondary effluent and a waste activated sludge. The micro-sieve may have openings of 250 microns or less, for example about 150 microns. In a process, a gas transfer membrane is immersed in water. Pressurized air flows into the gas transfer membrane. An exhaust gas is withdrawn from the gas transfer membrane and used to produce bubbles from an aerator immersed in the water.
C02F 3/20 - Procédés par les boues activées utilisant des diffuseurs
C02F 11/123 - Traitement des boues d'égoutDispositifs à cet effet par déshydratation, séchage ou épaississement par déshydratation mécanique à l’aide de filtres à bandes
A wireless gateway is provided that is adapted to receive output data from a variety of connected devices such as pumps from a variety of different manufacturers. The gateway connects to each pump associated with an end user using a wired or wireless connection. The gateway receives output data from a pump in a first format that is specific to the type of pump or the manufacturer of the pump. The gateway then converts the output data into a second format based on knowledge about the type or manufacturer of the pump. The gateway then provides output data in the second format to a platform accessible by a service provider and the end user. The output data may be provided through a wired or wireless connection (e.g., cellular connection) between the gateway and a cloud-based platform used by the end user.
Fluid filtration apparatus, namely, membranes, filters, and filter elements for use in water filtration and fluid filtration for water
wastewater, oil and gas, dairy, food, beverage, minerals, pharmacological, medical, mining, and metallurgy separation processes
72.
Monitoring and control of unwanted polymer by-product generated in monomers production, storage, and handling using infrared spectroscopy analysis
A method for monitoring and controlling unwanted polymer byproduct generated in a monomer production, storage, or handling process, for example polystyrene in a styrene production process, is described. The method comprises receiving a sample (115) taken during a monomer production process by a Fourier-Transform infrared spectrometer (120), performing an infrared spectroscopy analysis on the sample to generate spectral data (122) by the Fourier-Transform infrared spectrometer, and determining a percentage (119) of at least one polymer in the sample by mathematical correlative processing of the spectral data by a computing device (110).
G01N 21/3563 - CouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes en recherchant l'effet relatif du matériau pour les longueurs d'ondes caractéristiques d'éléments ou de molécules spécifiques, p. ex. spectrométrie d'absorption atomique en utilisant la lumière infrarouge pour l'analyse de solidesPréparation des échantillons à cet effet
G01N 21/35 - CouleurPropriétés spectrales, c.-à-d. comparaison de l'effet du matériau sur la lumière pour plusieurs longueurs d'ondes ou plusieurs bandes de longueurs d'ondes différentes en recherchant l'effet relatif du matériau pour les longueurs d'ondes caractéristiques d'éléments ou de molécules spécifiques, p. ex. spectrométrie d'absorption atomique en utilisant la lumière infrarouge
73.
PROCESS FOR MANAGING WORMS IN MEMBRANE AERATED BIOFILM
An overgrowth of worms can reduce the effluent quality of a membrane aerated biofilm reactor. A method of controlling the growth of worms in a membrane aerated biofilm includes discontinuing all oxygen sources to a tank containing the biofilm and fluid flows flow into the tank. The tank is maintained in this idle condition for a period of time sufficient to kill at least some of the worms living in the biofilm. The method may be applied periodically to inhibit the formation of an excessive population of worms or retroactively to reduce an already excessive population of worms.
A by-pass control sleeve has circumferential protrusions along its outer surface. The protrusions of the by-pass control sleeve may be distributed along the length of the sleeve with constant diameter sections of the sleeve therebetween. The protrusions may be asymmetrical and/or may have a steep and/or concave curved forward face. A method of making a by-pass control sleeve comprises molding the protrusions on an outer surface of the sleeve. A method of installing the by-pass control sleeve comprises sliding the sleeve onto an end of a spiral wound membrane element. A combination of the by-pass control sleeve fixed to the spiral wound membrane element may be installed in a pressure housing.
C02F 1/66 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par neutralisationAjustage du pH
C02F 1/68 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par addition de substances spécifiées, pour améliorer l'eau potable, p. ex. par addition d'oligo-éléments
C02F 101/38 - Composés organiques contenant de l'azote
C02F 103/34 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'industrie chimique non prévue dans les groupes
76.
METHOD AND SYSTEM FOR REMOVING AZOLE-BASED COMPOUNDS FROM A WASTEWATER
The present disclosure provides a method for reducing or removing azole-based compounds from a wastewater, such as a semiconductor wastewater. The method includes adding a solution comprising transition metal (II) ions to a wastewater that includes an azole compound; and allowing the transition metal (II) ions and the azole compound in the wastewater to form a transition metal-azole complex in the wastewater. The transition metal ions may be Cu2+ions and/or Zn2+ ions.
C02F 1/68 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par addition de substances spécifiées, pour améliorer l'eau potable, p. ex. par addition d'oligo-éléments
C02F 1/52 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par floculation ou précipitation d'impuretés en suspension
C02F 1/66 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par neutralisationAjustage du pH
C02F 101/38 - Composés organiques contenant de l'azote
C02F 103/34 - Nature de l'eau, des eaux résiduaires ou des eaux ou boues d'égout à traiter provenant de l'industrie chimique non prévue dans les groupes
The present disclosure provides a wastewater treatment system that includes at least one bioreactor tank growing a biomass therein. A nanofiltration, ultrafiltration, or microfiltration membrane is housed in the bioreactor tank. The membrane is in fluid communication with a liquid outlet to discharge a permeated-effluent. The membrane may be operated to filter a biologically-treated wastewater without substantially filtering the biomass growing in the bioreactor tank. For example, permeation through the membranes may be implemented only when the biomass is settled and the membranes are exposed to a substantially clear wastewater above the settled biomass. Alternatively, or in addition, the bioreactor tank may include a non-permeated-effluent outlet, and both non-permeated-effluent and membrane-permeated effluent may be produced simultaneously.
The present disclosure provides a wastewater treatment system that includes at least one bioreactor tank growing a biomass therein. A nanofiltration, ultrafiltration, or microfiltration membrane is housed in the bioreactor tank. The membrane is in fluid communication with a liquid outlet to discharge a permeated-effluent. The membrane may be operated to filter a biologically-treated wastewater without substantially filtering the biomass growing in the bioreactor tank. For example, permeation through the membranes may be implemented only when the biomass is settled and the membranes are exposed to a substantially clear wastewater above the settled biomass. Alternatively, or in addition, the bioreactor tank may include a non-permeated-effluent outlet, and both non-permeated-effluent and membrane-permeated effluent may be produced simultaneously.
A diesel fuel composition having a diesel fuel blend and at least one additive is provided. A method for reducing biodiesel fuel filter blocking tendency (FBT) is provided, the method adding at least one fuel additive to a diesel fuel blend to obtain a diesel fuel composition. A method for reducing biodiesel fuel filter blocking tendency (FBT) is provided, the method adding a fuel additive combination to a diesel fuel blend to obtain a diesel fuel composition
C10L 1/196 - Composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone dérivés de monomères contenant une liaison insaturée carbone-carbone et un groupe carboxyle ou leurs sels, leurs anhydrides ou leurs esters
C10L 1/197 - Composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone dérivés de monomères contenant une liaison insaturée carbone-carbone et un groupe acyloxy d'un acide carboxylique ou carbonique saturés
C10L 1/222 - Composés organiques contenant de l'azote contenant au moins une liaison simple carbone-azote
C10L 1/232 - Composés organiques contenant de l'azote contenant de l'azote dans un hétérocycle
C10L 1/233 - Composés organiques contenant de l'azote contenant de l'azote dans un hétérocycle contenant de l'azote et de l'oxygène dans le noyau, p. ex. oxazoles
C10L 1/238 - Composés macromoléculaires obtenus par des réactions autres que celles faisant intervenir uniquement des liaisons non saturées carbone-carbone
C10L 1/2383 - Polyamines ou polyimines, ou leurs dérivés
A diesel fuel composition having a diesel fuel blend and at least one additive is provided. A method for reducing biodiesel fuel filter blocking tendency (FBT) is provided, the method adding at least one fuel additive to a diesel fuel blend to obtain a diesel fuel composition. A method for reducing biodiesel fuel filter blocking tendency (FBT) is provided, the method adding a fuel additive combination to a diesel fuel blend to obtain a diesel fuel composition.
C10L 1/196 - Composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone dérivés de monomères contenant une liaison insaturée carbone-carbone et un groupe carboxyle ou leurs sels, leurs anhydrides ou leurs esters
C10L 1/197 - Composés macromoléculaires obtenus par des réactions faisant intervenir uniquement des liaisons non saturées carbone-carbone dérivés de monomères contenant une liaison insaturée carbone-carbone et un groupe acyloxy d'un acide carboxylique ou carbonique saturés
C10L 1/222 - Composés organiques contenant de l'azote contenant au moins une liaison simple carbone-azote
C10L 1/232 - Composés organiques contenant de l'azote contenant de l'azote dans un hétérocycle
C10L 1/233 - Composés organiques contenant de l'azote contenant de l'azote dans un hétérocycle contenant de l'azote et de l'oxygène dans le noyau, p. ex. oxazoles
C10L 1/238 - Composés macromoléculaires obtenus par des réactions autres que celles faisant intervenir uniquement des liaisons non saturées carbone-carbone
C10L 1/2383 - Polyamines ou polyimines, ou leurs dérivés
2 permeable membrane is disposed between the first fluid channel and the second fluid channel and a temperature measurement device measures a temperature of a fluid within the first and/or second fluid channel. A temperature control system is configured to heat or cool the transfer plates. Heating or cooling the transfer plates heats or cools the fluid within the first and/or second fluid channel to the desired temperature. One or more conductivity sensors are configured to measure a conductivity of the fluid within the first and/or second fluid channel.
A cord for supporting a biofilm has a plurality of yarns. At least one of the yarns comprises a plurality of hollow fiber gas transfer membranes. At least one of the yarns extends along the length of the cord generally in the shape of a spiral. Optionally, one or more of the yarns may comprise one or more reinforcing filaments. In some examples, a reinforcing yarn is wrapped around a core. A module may be made by potting a plurality of the cords in at least one header. A reactor may be made and operated by placing the module in a tank fed with water to be treated and supplying a gas to the module. In use, a biofilm covers the cords to form a membrane biofilm assembly.
A method to reduce or eliminate N-heterocycles, the method providing one or more environmentally benign chelators (EBCs) to an aqueous cooling system, the aqueous cooling system having at least one N-heterocycle in the presence of a halogenating or non-halogenating oxidizer. A method to reduce or eliminate AOX, the method providing one or more environmentally benign chelators (EBCs) to an aqueous cooling system, the aqueous cooling system having at least one AOX-containing species in the presence of a halogenating biocide.
C02F 1/68 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par addition de substances spécifiées, pour améliorer l'eau potable, p. ex. par addition d'oligo-éléments
C02F 1/72 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par oxydation
C02F 5/10 - Traitement de l'eau avec des produits chimiques complexants ou des agents solubilisants pour l'adoucissement, la prévention ou l'élimination de l'entartrage, p. ex. par addition d'agents séquestrants en utilisant des substances organiques
C02F 5/12 - Traitement de l'eau avec des produits chimiques complexants ou des agents solubilisants pour l'adoucissement, la prévention ou l'élimination de l'entartrage, p. ex. par addition d'agents séquestrants en utilisant des substances organiques contenant de l'azote
C02F 5/14 - Traitement de l'eau avec des produits chimiques complexants ou des agents solubilisants pour l'adoucissement, la prévention ou l'élimination de l'entartrage, p. ex. par addition d'agents séquestrants en utilisant des substances organiques contenant du phosphore
C23F 11/10 - Inhibition de la corrosion de matériaux métalliques par application d'inhibiteurs sur la surface menacée par la corrosion ou par addition d'inhibiteurs à l'agent corrosif dans d'autres liquides au moyen d'inhibiteurs organiques
A method of processing brine comprising lithium. The method may include providing a feed brine and a draw brine to a first forward osmosis (FO) module, the feed brine and/or the draw brine comprising lithium, and forming a feed brine concentrate and a dilute draw brine; and providing the dilute draw brine to a first nanofiltration (NF) module, and forming a first NF retentate, at least a portion of which is optionally recycled to the FO module, and forming a first NF permeate comprising at least a portion of the lithium. The method may additionally include providing a first brine to an initial NF module that is upstream of the first FO module, and forming the feed brine that is provided to the FO module, and forming an initial NF retentate, at least a portion of which is optionally recycled to the first FO module and/or the first NF module.
C22B 3/22 - Traitement ou purification de solutions, p. ex. de solutions obtenues par lixiviation par des procédés physiques, p. ex. par filtration, par des moyens magnétiques
B01D 61/00 - Procédés de séparation utilisant des membranes semi-perméables, p. ex. dialyse, osmose ou ultrafiltrationAppareils, accessoires ou opérations auxiliaires, spécialement adaptés à cet effet
A composition providing a copper-carboxylic acid complex, the copper-carboxylic acid complex having a molar ratio of copper (Cu) to carboxylic acid that is between 1:0.1 and 1:1.5; and an asphalt composition. A method for scavenging hydrogen sulfide from asphalt, the method providing a composition comprising a copper-carboxylic acid complex having a molar ratio of copper (Cu) to carboxylic acid of the copper-carboxylic acid complex is between 1:0.1 and 1:1.5; and adding the composition to an asphalt composition.
Stillage solids concentration methods are disclosed wherein a solids concentration aid is added to a process stream mixture in a corn to ethanol process. The solids concentration aid may comprise a cationic polymer coagulant or flocculant or both, a starch based coagulant or flocculant or a biologically derived (i.e., plant or animal origin) coagulant or flocculant. Acrylamide/quaternary ammonium copolymers and homopolymeric polydiallyldimethyl ammonium chloride polymers are noteworthy examples of suitable solids concentration aids.
An iron or aluminum-ore based composite and method of preparing the composite by (a) contacting a plurality of iron or aluminum ore particles with at least one water-soluble binding polymer to form an agglomeration, and (b) forming a composite.
An iron or aluminum-ore based composite and method of preparing the composite by (a) contacting a plurality of iron or aluminum ore particles with at least one water-soluble binding polymer to form an agglomeration, and (b) forming a composite.
A spiral wound membrane module is suitable for use with high temperature water that may also have a high pH, for example steam injection produced water. The module uses a membrane with a polyphenylene sulfide (PPS) backing material. The feed spacer of the module may be made from polyphenylene sulfide (PPS) or ethylene chlorotrifluoroethylene (ECTFE). The permeate carrier may be made of a woven nylon (i.e. nylon 6, 6) fabric coated with high temperature epoxy. The core tube and anti-telescoping device may be made of polysulfone. In some examples, the module may be used at a temperature of up to 130° C. Optionally, the module may be used at a pH of 9.5 or more. In a filtration method, the module may be operated at a pressure in the range of 150 to 450 psi. The module may be operated at a generally constant pressure.
This specification describes membrane based filtration and softening systems and methods. A system has a microfiltration or ultrafiltration (MF/UF) membrane unit upstream of a nanofiltration or reverse osmosis (NF/RO) membrane unit, optionally with no intermediate tank. In some cases, the system and method may be used with feed water provided at municipal line pressure to the membranes. NF/RO permeate is collected in a tank and then pumped to a header. Treated water may be drawn from the header for use or recycled to the system, for example to backwash or flush one or both of the membrane units. In a combined process, NF/RO permeate flushes the feed side of the NF/RO unit and then backwashes the MF/UF unit. In another process, the MF/UF unit and NF/RO unit are filled with NF/RO permeate before being placed in a standby mode.
A method for inhibiting melanoidin formation in a yeast propagation process, the method provides for adding a treatment composition to a molasses substance present in a yeast propagation process, wherein the treatment composition comprises a lecithin. A composition for a yeast propagation process, the composition having a lecithin, and a molasses substance.
A method for inhibiting melanoidin formation in a yeast propagation process, the method provides for adding a treatment composition to a molasses substance present in a yeast propagation process, wherein the treatment composition comprises a lecithin. A composition for a yeast propagation process, the composition having a lecithin, and a molasses substance.
G01N 27/27 - Association de plusieurs systèmes ou cellules de mesure, chacun mesurant un paramètre différent, dans laquelle les résultats des mesures peuvent être, soit utilisès indépendamment, les systèmes ou les cellules étant physiquement associés, soit combinés pour produire une valeur représentative d'un autre paramètre
G01N 27/333 - Électrodes ou membranes sélectives à l'égard des ions
2 or more. Water is fed to the module at a high feed pressure, for example a pressure of at least 50 bar, optionally up to 120 bar. Retentate may be discharged at a concentration of 100 g/L, 130 g/L, or 150 g/L or more.
B01D 63/10 - Modules à membranes enroulées en spirale
B01D 69/02 - Membranes semi-perméables destinées aux procédés ou aux appareils de séparation, caractérisées par leur forme, leur structure ou leurs propriétésProcédés spécialement adaptés à leur fabrication caractérisées par leurs propriétés
C02F 1/44 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par dialyse, osmose ou osmose inverse
C02F 103/08 - Eau de mer, p. ex. pour le dessalement
95.
UNDERDRAIN AND SEPTA FOR MEDIA VESSEL AND METHOD OF CLEANING
An underdrain system for a media pressure vessel has a set of removable pipe sections located between an external header and the bottom of a vessel. Septa extend upwards from the removable pipe sections into the vessel by up to 16 inches. The septa may have diameters of 6 inches or more. The header is attached to the bottoms of the removable pipe sections. Each pipe section, and its associated septum, may be removed individually. To clean the vessel, after media is removed from the vessel the pipe sections are removed sequentially while the header remains otherwise attached to the vessel. While a pipe section is removed, its associated septum is removed so that solids can be removed from the annulus between the septum and the vessel. In this way, media can be cleaned from the annuli without moving the external header or entering the vessel.
B01D 24/14 - Filtration vers le bas, le récipient comportant des tuyaux collecteurs ou distributeurs ou des tuyaux perméables
B01J 8/02 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés avec des particules immobiles, p. ex. dans des lits fixes
B08B 9/02 - Nettoyage de conduites ou de tubes ou de systèmes de conduites ou de tubes
B08B 9/08 - Nettoyage de récipients, p. ex. de réservoirs
B08B 9/093 - Nettoyage de récipients, p. ex. de réservoirs par la force de jets ou de pulvérisations
C02F 1/00 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout
C02F 1/28 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par absorption ou adsorption
96.
UNDERDRAIN FOR MEDIA VESSEL AND METHOD OF CLEANING
An underdrain system for a media pressure vessel has a set of removable pipe sections located between an external header and the bottom of a vessel. Septa extend upwards from the removable pipe sections into the vessel. The header is attached to the bottoms of the removable pipe sections. Each pipe section, and its associated septum, may be removed individually. To clean the vessel, after media is removed from the vessel the pipe sections are removed sequentially while the header remains otherwise attached to the vessel. While a pipe section is removed, its associated septum is removed so that solids can be removed from the annulus between the septum and the vessel. In this way, media can be cleaned from the annuli without moving the external header or entering the vessel.
C02F 1/00 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout
C02F 1/28 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par absorption ou adsorption
B01J 8/02 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés avec des particules immobiles, p. ex. dans des lits fixes
B08B 9/02 - Nettoyage de conduites ou de tubes ou de systèmes de conduites ou de tubes
B08B 9/08 - Nettoyage de récipients, p. ex. de réservoirs
B01D 24/14 - Filtration vers le bas, le récipient comportant des tuyaux collecteurs ou distributeurs ou des tuyaux perméables
97.
CLEANING MECHANISM AND UNDERDRAIN FOR MEDIA VESSEL AND METHOD OF CLEANING
An underdrain system for a media pressure vessel has a set of removable pipe sections located between an external header and the bottom of a vessel. Septa extend upwards from the removable pipe sections into the vessel. The header is attached to the bottoms of the removable pipe sections. To clean the vessel, the pipe sections are removed. While a pipe section is removed, its associated septum is removed so that solids can be removed from the annulus between the septum and the vessel. In this way, media can be cleaned from the annuli without moving the external header or entering the vessel. A cleaning mechanism includes an elongated member with a spray nozzle that may be moved within the vessel. The cleaning mechanism may be used to removed media adhered to the walls of the vessel, for example while the septa are removed.
C02F 1/00 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout
B08B 9/093 - Nettoyage de récipients, p. ex. de réservoirs par la force de jets ou de pulvérisations
C02F 1/28 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par absorption ou adsorption
B01J 8/02 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés avec des particules immobiles, p. ex. dans des lits fixes
B08B 9/02 - Nettoyage de conduites ou de tubes ou de systèmes de conduites ou de tubes
B08B 9/08 - Nettoyage de récipients, p. ex. de réservoirs
B01D 24/14 - Filtration vers le bas, le récipient comportant des tuyaux collecteurs ou distributeurs ou des tuyaux perméables
98.
UNDERDRAIN FOR MEDIA VESSEL AND METHOD OF CLEANING
An underdrain system for a media pressure vessel has a set of removable pipe sections located between an external header and the bottom of a vessel. Septa extend upwards from the removable pipe sections into the vessel. The header is attached to the bottoms of the removable pipe sections. Each pipe section, and its associated septum, may be removed individually. To clean the vessel, after media is removed from the vessel the pipe sections are removed sequentially while the header remains otherwise attached to the vessel. While a pipe section is removed, its associated septum is removed so that solids can be removed from the annulus between the septum and the vessel. In this way, media can be cleaned from the annuli without moving the external header or entering the vessel.
B01D 24/14 - Filtration vers le bas, le récipient comportant des tuyaux collecteurs ou distributeurs ou des tuyaux perméables
B01J 8/02 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés avec des particules immobiles, p. ex. dans des lits fixes
B08B 9/02 - Nettoyage de conduites ou de tubes ou de systèmes de conduites ou de tubes
B08B 9/08 - Nettoyage de récipients, p. ex. de réservoirs
C02F 1/00 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout
C02F 1/28 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par absorption ou adsorption
99.
CLEANING MECHANISM AND UNDERDRAIN FOR MEDIA VESSEL AND METHOD OF CLEANING
An underdrain system for a media pressure vessel has a set of removable pipe sections located between an external header and the bottom of a vessel. Septa extend upwards from the removable pipe sections into the vessel. The header is attached to the bottoms of the removable pipe sections. To clean the vessel, the pipe sections are removed. While a pipe section is removed, its associated septum is removed so that solids can be removed from the annulus between the septum and the vessel. In this way, media can be cleaned from the annuli without moving the external header or entering the vessel. A cleaning mechanism includes an elongated member with a spray nozzle that may be moved within the vessel. The cleaning mechanism may be used to removed media adhered to the walls of the vessel, for example while the septa are removed.
B01D 24/14 - Filtration vers le bas, le récipient comportant des tuyaux collecteurs ou distributeurs ou des tuyaux perméables
B01J 8/02 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés avec des particules immobiles, p. ex. dans des lits fixes
B08B 9/02 - Nettoyage de conduites ou de tubes ou de systèmes de conduites ou de tubes
B08B 9/08 - Nettoyage de récipients, p. ex. de réservoirs
B08B 9/093 - Nettoyage de récipients, p. ex. de réservoirs par la force de jets ou de pulvérisations
C02F 1/00 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout
C02F 1/28 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par absorption ou adsorption
100.
UNDERDRAIN AND SEPTA FOR MEDIA VESSEL AND METHOD OF CLEANING
An underdrain system for a media pressure vessel has a set of removable pipe sections located between an external header and the bottom of a vessel. Septa extend upwards from the removable pipe sections into the vessel by up to 16 inches. The septa may have diameters of 6 inches or more. The header is attached to the bottoms of the removable pipe sections. Each pipe section, and its associated septum, may be removed individually. To clean the vessel, after media is removed from the vessel the pipe sections are removed sequentially while the header remains otherwise attached to the vessel. While a pipe section is removed, its associated septum is removed so that solids can be removed from the annulus between the septum and the vessel. In this way, media can be cleaned from the annuli without moving the external header or entering the vessel.
C02F 1/00 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout
B08B 9/093 - Nettoyage de récipients, p. ex. de réservoirs par la force de jets ou de pulvérisations
C02F 1/28 - Traitement de l'eau, des eaux résiduaires ou des eaux d'égout par absorption ou adsorption
B01J 8/02 - Procédés chimiques ou physiques en général, conduits en présence de fluides et de particules solidesAppareillage pour de tels procédés avec des particules immobiles, p. ex. dans des lits fixes
B08B 9/02 - Nettoyage de conduites ou de tubes ou de systèmes de conduites ou de tubes
B08B 9/08 - Nettoyage de récipients, p. ex. de réservoirs
B01D 24/14 - Filtration vers le bas, le récipient comportant des tuyaux collecteurs ou distributeurs ou des tuyaux perméables