The invention comprises a process for remediation of soil comprising PFAS. The process comprises steps a)-d). In step a) sludge and a first gaseous stream are heated in a first spouting bed incinerator, thereby generating a raw material for a ceramic article and a first gaseous stream comprising a first flue gas, the first gaseous stream comprising the first flue gas having a temperature of at least 800° C. In step b) the first gaseous stream comprising the first flue gas is heat exchanged with a second gaseous stream in an air-to-air heat exchanger, thereby generating a second gaseous stream with a temperature of at least 500° C. In step c) the soil comprising PFAS is contacted with the second gaseous stream in a dryer, thereby evaporating the PFAS from the soil and generating clean soil and a second gaseous stream comprising PFAS. In step d) the second gaseous stream comprising PFAS is further heated to a temperature of at least 1000° C. in a second spouting bed incinerator, thereby generating a second gaseous stream comprising destructed PFAS.
B09C 1/06 - Régénération de sols pollués par des procédés thermiques
B01D 53/02 - SÉPARATION Épuration chimique ou biologique des gaz résiduaires, p.ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par adsorption, p.ex. chromatographie préparatoire en phase gazeuse
B01D 53/14 - SÉPARATION Épuration chimique ou biologique des gaz résiduaires, p.ex. gaz d'échappement des moteurs à combustion, fumées, vapeurs, gaz de combustion ou aérosols par absorption
B01D 53/76 - Procédés en phase gazeuse, p.ex. utilisant des aérosols
C02F 11/06 - Traitement des boues d'égout; Dispositifs à cet effet par oxydation
The invention comprises a process for remediation of soil comprising PFAS. The process comprises steps a) ? d). In step a) sludge and a first gaseous stream are heated in a first spouting bed incinerator, thereby generating a raw material for a ceramic article and a first gaseous stream comprising a first flue gas, the first gaseous stream comprising the first flue gas having a temperature of at least 800 °C. In step b) the first gaseous streamcomprising the first flue gas is heat exchanged with a second gaseous stream in an air-to-air heat exchanger, thereby generating a second gaseous stream with a temperature of at least 500 °C. In step c) the soil comprising PFAS is contacted with the second gaseous stream in a dryer, thereby evaporating the PFAS from the soil and generating clean soil and a second gaseous stream comprising PFAS. In step d) the second gaseous stream comprising PFAS is further heated to a temperature of at least 1000 °C in a second spouting bed incinerator, thereby generating a second gaseous stream comprising destructed PFAS.
B09C 1/06 - Régénération de sols pollués par des procédés thermiques
C02F 11/13 - Traitement des boues d'égout; Dispositifs à cet effet par déshydratation, séchage ou épaississement par chauffage
B09B 3/40 - Destruction de déchets solides ou transformation de déchets solides en quelque chose d'utile ou d'inoffensif impliquant un traitement thermique, p.ex. évaporation
F23G 7/14 - Procédés ou appareils, p.ex. incinérateurs, spécialement adaptés à la combustion de déchets particuliers ou de combustibles pauvres, p.ex. des produits chimiques de sols pollués, p.ex. sols pollués par des huiles
The invention comprises a process for remediation of soil comprising PFAS. The process comprises steps a) – d). In step a) sludge and a first gaseous stream are heated in a first spouting bed incinerator, thereby generating a raw material for a ceramic article and a first gaseous stream comprising a first flue gas, the first gaseous stream comprising the first flue gas having a temperature of at least 800 °C. In step b) the first gaseous streamcomprising the first flue gas is heat exchanged with a second gaseous stream in an air-to-air heat exchanger, thereby generating a second gaseous stream with a temperature of at least 500 °C. In step c) the soil comprising PFAS is contacted with the second gaseous stream in a dryer, thereby evaporating the PFAS from the soil and generating clean soil and a second gaseous stream comprising PFAS. In step d) the second gaseous stream comprising PFAS is further heated to a temperature of at least 1000 °C in a second spouting bed incinerator, thereby generating a second gaseous stream comprising destructed PFAS.
B09C 1/06 - Régénération de sols pollués par des procédés thermiques
B09B 3/40 - Destruction de déchets solides ou transformation de déchets solides en quelque chose d'utile ou d'inoffensif impliquant un traitement thermique, p.ex. évaporation
C02F 11/13 - Traitement des boues d'égout; Dispositifs à cet effet par déshydratation, séchage ou épaississement par chauffage
C04B 35/622 - Procédés de mise en forme; Traitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques
C04B 35/626 - Préparation ou traitement des poudres individuellement ou par fournées
F23G 7/04 - Procédés ou appareils, p.ex. incinérateurs, spécialement adaptés à la combustion de déchets particuliers ou de combustibles pauvres, p.ex. des produits chimiques de liqueurs résiduelles, p.ex. de liqueurs au sulfite
F23G 7/14 - Procédés ou appareils, p.ex. incinérateurs, spécialement adaptés à la combustion de déchets particuliers ou de combustibles pauvres, p.ex. des produits chimiques de sols pollués, p.ex. sols pollués par des huiles
F23G 5/30 - Procédés ou appareils, p.ex. incinérateurs, spécialement adaptés à la combustion de déchets ou de combustibles pauvres avec combustion dans un lit fluidisé
B09B 101/90 - Terre, p.ex. terre d'excavation provenant de chantiers
4.
Process for Preparing a Ceramic Article Containing Sludge
The invention relates to a process for the preparation of a ceramic article containing industrial, domestic or natural sludge, the ceramic article, and treated domestic or natural sludge suitable as raw material for the production of the ceramic article. The sludge (which definition excludes digestate that is obtained from a Municipal Solid Waste (MSW) process comprising liquefaction of the organic fraction of MSW by addition of one or more enzymes) has been pretreated by a process comprising the optional step of drying the sludge to a moisture content of at most 10% by weight, resulting in dried sludge, and heating the sludge or dried sludge in a spouting bed incinerator and reducing the content of organic matter to less than 5% by weight. The invention furthermore relates to a process wherein the pretreatment comprises using the domestic or natural sludge as a food source for larvae.
The invention relates to a process for the preparation of a ceramic article containing industrial, domestic or natural sludge, the ceramic article, and treated domestic or natural sludge suitable as raw material for the production of the ceramic article. The sludge (which definition excludes digestate that is obtained from a Municipal Solid Waste (MSW) process comprising liquefaction of the organic fraction of MSW by addition of one or more enzymes) has been pretreated by a process comprising the optional step of drying the sludge to a moisture content of at most 10% by weight, resulting in dried sludge, and heating the sludge or dried sludge in a spouting bed incinerator and reducing the content of organic matter to less than 5% by weight. The invention furthermore relates to a process wherein the pretreatment comprises using the domestic or natural sludge as a food source for larvae.
C04B 35/01 - Produits céramiques mis en forme, caractérisés par leur composition; Compositions céramiques; Traitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base d'oxydes
C04B 35/622 - Procédés de mise en forme; Traitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques
C04B 35/626 - Préparation ou traitement des poudres individuellement ou par fournées
C04B 35/63 - Préparation ou traitement des poudres individuellement ou par fournées utilisant des additifs spécialement adaptés à la formation des produits
The invention relates to a process for the preparation of a ceramic article containing industrial, domestic or natural sludge, the ceramic article, and treated domestic or natural sludge suitable as raw material for the production of the ceramic article. The sludge (which definition excludes digestate that is obtained from a Municipal Solid Waste (MSW) process comprising liquefaction of the organic fraction of MSW by addition of one or more enzymes) has been pretreated by a process comprising the optional step of drying the sludge to a moisture content of at most 10% by weight, resulting in dried sludge, and heating the sludge or dried sludge in a spouting bed incinerator and reducing the content of organic matter to less than 5% by weight. The invention furthermore relates to a process wherein the pretreatment comprises using the domestic or natural sludge as a food source for larvae.
C04B 35/01 - Produits céramiques mis en forme, caractérisés par leur composition; Compositions céramiques; Traitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques à base d'oxydes
C04B 35/622 - Procédés de mise en forme; Traitement de poudres de composés inorganiques préalablement à la fabrication de produits céramiques
C04B 35/626 - Préparation ou traitement des poudres individuellement ou par fournées
C04B 35/63 - Préparation ou traitement des poudres individuellement ou par fournées utilisant des additifs spécialement adaptés à la formation des produits
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