C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 3/28 (2006.01) C02F 3/10 (2006.01)
Patent
CA 2710888
The present invention refers to a method for increasing the concentration of colonies of micro organisms formed on the surface of Gramineas bambusoideae in a continuous flow and/or batch process which utilizes biomass as a filtering means to remove nitrates and other organic and inorganic contaminants from water reservoirs and from domestic and/or industrial effluents, in which a step of adsorption is followed by a step of biological degradation by anaerobic digestion of micro organisms of the types Psevdonomas SP (Azobacter, Azotomas, Nitrosomonas, Nitrosococus, Nitrobacter, and Rhixobium). According to the invention, the addition of about 200 - 300 ppm of sodium acetate to the solution fed to the reactor, while maintaining a relation of 2:1 C:N, provides an efficiency increase of 80% to 98% regarding the removal of nitrates as well as organic and inorganic soluble matter from the water.
La présente invention concerne une méthode destinée à augmenter la concentration de colonies de micro-organismes formées sur la surface de Gramineas bambusoideae dans un procédé discontinu et/ou à flux continu faisant intervenir une biomasse comme moyen de filtrage pour éliminer les nitrates et autres contaminants organiques et inorganiques à partir de réservoirs d'eau et d'effluents domestiques et/ou industriels. Cette méthode consiste à réaliser une adsorption, puis une dégradation biologique par digestion anaérobie de micro-organismes des types Pseudonomas SP (Azobacter, Azotomas, Nitrosomonas, Nitrosococus, Nitrobacter, et Rhixobium). Selon l'invention, l'addition d'environ 200 à 300 ppm d'acétate de sodium à la solution acheminée vers le réacteur, parallèlement au maintien d'un rapport C:N de 2:1, permet d'obtenir une augmentation de rendement comprise entre 80% et 98% en termes d'élimination des nitrates et des matières solubles organiques et inorganiques à partir de l'eau.
Mercosul Comercial Ltda.
Piasetzki Nenniger Kvas Llp
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