A liquid treatment module (2), configured for ultraviolet (UV)-light treatment of a liquid (4) flowing through a first treatment chamber (6) defined as a first elongated circumferential hollow cavity (8) between an outer surface (10) of a first translucent inner sleeve (12)and an inner surface (16) of a first outer sleeve (18') configured to enclose said first translucent sleeve (12). The inner sleeve (12) is arranged to protect and include a UV- light treatment lamp (14). The module comprises a module inlet connection (20) configured to receive liquid to be treated and a module outlet connection (22) configured to expel liquid treated by the liquid treatment module. The module comprises: -first liquid flow guiding members (24') configured to guide and direct a liquid flow (26) from said module inlet connection (20) into said first treatment chamber (6), -second liquid flow guiding members (28') configured to guide and direct a liquid flow (30) from said first treatment chamber (6) into a second treatment chamber (32'), and -third liquid flowing guiding members (34') configured to guide and direct a liquid recirculation flow (36) from said second treatment chamber (32') back into the first treatment chamber (6) again.
C02F 1/32 - Treatment of water, waste water, or sewage by irradiation with ultraviolet light
C02F 103/16 - Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
2.
LIQUID TREATMENT APPARATUS INCLUDING AN OVERSIZED LAMP PROTECTING SLEEVE
A liquid treatment apparatus (2), configured for light treatment of a liquid (4) flowing at a flow rate through at least one treatment chamber (6) having a first end (8) and a second end (10), the treatment chamber (6) is defined as a first elongated circumferential hollow cavity (13) between an inner wall (12) of a housing (14) and an outer wall (16) of a translucent sleeve (18) arranged to protect and include a tube-shaped treatment lamp (20). The lamp (20) is arranged with regard to the sleeve (18) such that a second elongated circumferential hollow cavity (15) is defined. The radial distance (e) between the outer wall surface of the lamp (20) and the inner wall surface (19) of the sleeve (18) is at least about 4 mm, such as about 4-20 mm, wherein the radial distance (e) is optimized with regard to preventing fouling/scaling of the outer wall surface (16) of the sleeve (18) caused by the light treatment.
A liquid treatment apparatus (2), comprising a pumping device (3) configured to pump a liquid (4) to be treated into at least one treatment chamber (6) comprising treatment equipment (9) configured to perform UV-light treatment of the liquid (4) flowing through the at least one treatment chamber (6). The liquid treatment apparatus (2) comprises an air trap vessel (5) arranged upstream of said pumping device (3) and provided with an inlet connection (22) for receiving liquid (4) to be treated and a first outlet connection (24) for connection and liquid supply to said pumping device (3). The air trap vessel (5) is configured to prevent air bubbles from being sucked into the pumping device (3) and to be at least partly filled with a priming liquid (23) before the pumping device (3) is started and the liquid treatment is initiated, and that the first outlet connection (24) being arranged below surface level of the priming liquid.
A liquid treatment apparatus (2), configured for light treatment of a liquid (4) flowing through at least one treatment chamber (6) having a first end (8) and a second end (10), the treatment chamber (6) is defined as a first elongated circumferential hollow cavity between an inner wall (12) of a housing (14) and an outer wall (16) of a translucent sleeve (18) arranged to protect and include a lamp (20). The apparatus comprises a connection arrangement (23) configured to be arranged in connection to a sleeve opening (24) at the first end (8) of the treatment chamber (6), and provided with a force generating member (26) configured, when the connection arrangement (23) is in a closed state, to generate a force to a lamp socket (28) to clamp the lamp (20) within the sleeve (18), the force is directed essentially in the longitudinal direction of the sleeve (18). The apparatus further comprises a front end support member (30) provided at a front end (32) of the lamp (20) to support the lamp against an inner surface (34) of the sleeve (18) in an axial direction when the connection arrangement (23) is in its closed state.
A liquid treatment apparatus, configured for light treatment of a liquid flowing through at least one essentially vertically arranged treatment chamber having an upper end and a lower end, the treatment chamber is defined as a first elongated circumferential hollow cavity between an inner wall of a housing and an outer wall of a translucent sleeve arranged to protect and include a lamp. The apparatus comprises at least one bottom plug (50) configured to be in a closed state where the plug (50) prevents liquid in said treatment chamber to flow out, and in an open state where liquid may flow out from said chamber via at least one outlet opening (52) in said plug, without having to remove said plug from the lower end. The plug (50) is provided with a centring member (54) configured to cooperate with a mating part (56) of a lower end of said sleeve to centre the sleeve within the housing with regard to a longitudinal symmetry axis (A) of the housing to assure that said hollow cavity having a predetermined distance between an outer sleeve surface and an inner surface of housing is defined when the bottom plug (50) is in its closed state and in its open state.
A fluid treatment system (2) for treating a fluid (4), the system (2) comprises: -a translucent sleeve (6) surrounding at least one light source (8) and mounted within a cell (10) of the system (2); -a housing (12) configured to receive the sleeve (6) therein, a hollow cavity (18) is defined between an outer surface (14) of the sleeve (6) and an inner surface (16) of the housing (12) defining a cavity for flowing the fluid (4) therein. The system (2) further comprises: -a fluid flowing device (22) to flow said fluid (4) through the hollow cavity (18) at a velocity of 3 m/s or higher such that the velocity of the fluid in relation to the outer surface (14) prevents fouling and/or scaling from aggregating on the outer surface (14) of the sleeve (6), -a recirculation assembly (24) configured to recirculate said fluid (4) through said hollow cavity (18). In addition a method is provided for treatment of a fluid in the fluid treatment system.
C02F 103/16 - Nature of the water, waste water, sewage or sludge to be treated from metallurgical processes, i.e. from the production, refining or treatment of metals, e.g. galvanic wastes
The present invention relates to a system for treating water, in particular in connection with recirculating aquaculture systems (RAS). The system comprises at least one moving bed bioreactor (MBBR) and at least one treatment unit, capable of creating radicals in the water, such as a photocatalytic reactor comprising a UV emitting member.
The present invention relates to a method for treating opaque fluids, comprising the steps of placing a treatment unit inside a volume of fluid to be treated, which treatment unit comprises a UV radiation member capable of emitting UV radiation, 5 radiating said volume of fluid with UV radiation, whereby said UV radiation is capable of creating radicals in said fluid, which radicals react with matter in the fluid, thereby treating it.
The present invention relates to a plate heat exchanger comprising a number of plates (10) stacked on top of each other, UV generating members (14) arranged such that surfaces of said plates (10) are radiated with UV light at the inlet (12) of the plate heat exchanger.
The present invention relates to a method for treating tap water, comprising the steps of exposing running tap water to UV radiation with UV generating means capable of exposing the water to UV light for creating radicals, which radicals treat the water. The invention is characterised in the introduction of carbon dioxide bubbles upstream said UV generating means. The carbon dioxide bubbles create a scattering of said UV light for enhancing the treatment, and they also carbonate the water for drinking purposes.
The present invention relates to a device to be used with a liquid treating device, which liquid treating device comprises a housing (10) having an enclosure, an inlet (12) and an outlet (14) arranged to said housing for providing a liquid flow through said enclosure, UV radiating means attached to said housing and arranged in said enclosure, capable of emitting radiation in said enclosure within the range of 150 nm to 400 nm, wherein the device comprises a temperature controlling circuit (22) arranged in the vicinity of the attachment (16) of the lamp to the housing and capable of controlling the temperature around the attachment of said lamp.
The present invention relates to a device for treating water, comprising an enclosure having UV radiating means, and catalysts comprising a number of plates arranged in stacks with a certain distance between them and generally parallel to each other, characterised in that it further comprises an electric DC power source connectable to said catalysts such that every second plate of the stack is connected to the plus side of the power source and every second plate of the stack is connected to the minus side of the power source.
The present invention relates to a method of creating photocatalytic surfaces, comprising the steps of creating a plurality of alternate layers of TiO2 and SnO2 on a carrier, wherein the SnO2 layers are created from strongly basic solutions.
The present invention relates to a system for treating water, comprising conduits to be arranged between a water source and water outlet, a pump connectable to said conduit, a filter connectable to said conduit downstream said pump, an ion exchange unit connectable to said conduit downstream said filter, a photocatalytic treatment unit connectable to said conduit downstream said ion exchange unit. The invention is characterised by a control system comprising control means, monitoring means and sensor means capable of automatically controlling the operation of said system.
The present invention relates to an arrangement to be used in a liquid treatment unit, which unit comprises a generally tubular housing having a liquid inlet in one end of said housing and a liquid outlet in the opposite end of said housing, a generally tubular filter element arranged generally concentric inside said housing, through which the liquid is to be fed from outside the filter to inside the filter, an elongated UV-generating means arranged inside said filter element, the longitudinal direction of which generally corresponds to the longitudinal direction of the filter element, which UV-generating means is capable of generating UV light, material displaying catalytic properties arranged on at least the inner surfaces of said filter element, which material is radiated by said UV-light. The invention is characterised in that said elongated UV-generating means extends a further distance than said generally tubular filter element, which extension is positioned adjacent said outlet, wherein said further distance ensures the flow of liquid, that has passed through said filter element, to flow a certain minimum distance along said elongated UV-generating means, thereby exposing said flow of liquid to UV-light.
The present invention relates to a device for treatment of fluids, comprising a treatment chamber having an inlet and an outlet for the fluid to be treated, elongated UV light generating means arranged inside said treatment chamber, a photo-catalytic structure arranged in said treatment chamber, that said photo-catalytic structure is a filter arranged in the flow of fluid through the treatment chamber such that the fluid flows through said filter, wherein said filter is designed generally tubular and placed adjacent and surrounding said UV light generating means for radiating said filter with UV light, thereby creating treatment radicals, and wherein said filter is placed such that the whole flow of fluid is forced through the radiated filter.
The present invention relates to a device for a liquid treatment unit, which unit comprises UV generating means, arranged inside a compartment, which compartment is arranged in a liquid treatment enclosure, which enclosure is arrange with an inlet and an outlet, wherein the compartment comprises UV light permeable material, and wherein said liquid to be treated surrounds said compartment. The invention is characterised in that said device comprises mechanical cleaning means arranged to and capable of cleaning outer surface of said compartment when said unit is in operation.
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