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Advanced Treatment and Decolorization of Washing and Bleaching Effluent by Biological Activated Carbon

Xin Liu

Abstract

The decolorization and advanced treatment of the washing and bleaching effluent of the pulp mill were carried out by integrative biological activated carbon device which cored on high-effective microorganisms. When influent CODCr was 149.99mg/L and colority was 34.30 times, enfluent CODCr was about 70mg/L and colority was about 15 times in pilot trial, both COD and colority removal rates achieved higher than 50%. 170d running experience indicated that biological activated carbon process can be used effectively for advanced treatment and decolorization of washing and bleaching effluent of the pulp mill.

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Key concepts: Effluent, Activated carbon, Pulp and paper industry, Powdered activated carbon treatment, Chemistry, Paper mill, Activated sludge, Pulp (tooth)