Method for removing effluent chromaticity of excrement waste water by biochemical treatment

The invention relates to a method for removing effluent chromaticity of excrement waste water by biochemical treatment by virtue of catalytic oxidation of active carbon, ultraviolet rays and ozone. The waste water with other indexes meeting the toilet flushing water quality requirements of Urban Sewage Reutilization Urban Miscellaneous Water Quality after the chromaticity being removed by virtue of the biochemical treatment, and the method comprises the steps of primary discoloration treatment and secondary discoloration treatment. The method provided by the invention is simple in operation, high in efficiency, low in cost, free from secondary pollution, and good in economic benefit, environment benefit and social benefit. 本发明涉及种利用活性炭、紫外光、臭氧催化氧化脱除粪便废水经生化处理出水色度的方法，对经生化处理除色度外其它指标达到《城市污水再生利用城市杂用水水质》（GB/T18920-2002）冲厕水质要求的废水进行处理，包括级脱色处理与二级脱色处理步骤。本发明的方法操作简单、效率高、成本低，无二次污染，具有较好的经济效益、环境效益及社会效益。