cn1144194a - process for treatment of waste water

CN1144194A - Process for treatment of waste water

The waste water is acidized to remove the insoluble deposit mattersformed from ions of copper, zinc, iron and lead, etc. from waste water, then neutralized with lime slurry to separate sulfate radical by forming calcium sulfate from the waste water, and the cyanide is still present in the waste water in the form of releasable cyanide ion, and can be cyclically used for cyanidation leaching-out.

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the bac-process for treatment of waste water containing

The BAC-process for treatment of waste water Containing

The dynamics of adsorption and BAC-process for treatment of waste water containing non-ionogenic synthetic surfactants. The waste water from households contains high concentrations of various contaminants such as mineral salts and organic compounds鈥攈ydrocarbons, suspended substances, soaps, fats, synthetic surfactants.

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us6485646b1 - process for the treatment of waste water

US6485646B1 - Process for the treatment of waste water

A process is described for the biological treatment of waste water containing ammonia, wherein the waste water is treated with sludge containing nitrifying bacteria in an aerated reactor, applying a sludge retention time in the reactor which favours nitrite-producing bacteria over nitrate-producing bacteria.

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us6602417b1 - process for the treatment of waste water

US6602417B1 - Process for the treatment of waste water

A process is described for the biological treatment of waste water containing a specific component such as ammonia, wherein the waste water together with surplus sludge from an activated sludge reactor is treated in a bioaugmentation reactor, applying a hydraulic retention time in the continuously or discontinuously operated reactor which is shorter than the sludge retention time by retaining part of the sludge in the reactor and continuing the use of the separated part in the reactor.

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ep0586998b1 - process for the treatment of waste water

EP0586998B1 - Process for the treatment of waste water

EP0586998B1 - Process for the treatment of waste water containing organic matter, especially chlorinated organic compounds from the production of epichlorohydrine - Google Patents Process for the treatment of waste water containing organic matter, especially chlorinated organic compounds from the production of epichlorohydrine

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treatment of high鈥恖evel arsenic鈥恈ontaining wastewater

Treatment of high鈥恖evel arsenic鈥恈ontaining wastewater

The results obtained in this study confirmed that the FBC process is capable of treating wastewater containing high concentrations of arsenic, reducing the concentration to 碌g L 鈭? levels. Sulfide dosage and operating pH are the two most significant parameters determining the residual arsenic concentration of the effluent, with optimum

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