C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 1/72 (2006.01) C02F 1/467 (2006.01) C25B 9/00 (2006.01) C02F 1/20 (2006.01) C02F 1/461 (2006.01) C02F 1/463 (2006.01)
Patent
CA 2345078
A process and apparatus has been invented for the purpose of decontaminating aqueous media derived from industrial wastestreams, sanitary wastestreams and natural sources. The aqueous media may contain solids in the form of sediment, soil or sludge. Contaminants include organic materials such as phenols, nitro containing compounds, PCBs, VOCs, PAHs, dyes; inorganic materials, including radionuclides, organometallic materials and microorganisms. Purification of the contaminated media is obtained by using an Electrochemical Peroxidation process (ECP), by which heated hydrogen peroxide is added through supply tubes (100) to an electrolytic cell (10) having oscillating current passing through large surface area sacrificial iron containing electrodes (60).
L'invention concerne un procédé et un appareil permettant de décontaminer un milieu aqueux tiré de flux de déchets industriels, de flux de déchets sanitaires ou de sources naturelles. Ce milieu aqueux peut contenir des solides sous forme de sédiments, de terre ou de boue. Les contaminants comprennent des matières organiques telles que des phénols, des composés nitrés, des diphényles polychlorés, des composés organiques volatils, des hydrocarbures aromatiques polycycliques et des colorants. Ces contaminants comprennent également des matières inorganiques telles que des radionucléides, des matières organométalliques et des micro-organismes. La purification du milieu contaminé est effectuée au moyen d'un procédé de peroxydation électrochimique, pendant lequel du peroxyde d'hydrogène chauffé est ajouté, grâce à des tubes (100) d'alimentation, à une cellule (10) électrolytique contenant des électrodes (60) réactives à grande surface contenant du fer et traversées par un courant oscillatoire.
Chiarenzelli Jeffrey R.
Scrudato Ronald J.
Kirby Eades Gale Baker
Research Foundation Of State University Of New York
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