【摘要】 广东省东部某印染园区集中废水处理厂工程规模为7.5万m~3/d,出水部分排海，部分回用。排海部分采用混凝沉淀-水解酸化-AAO-MBR-臭氧处理工艺，后续回用工艺经处理效果、工程风险性、投资、运行成本及维护等方面比选后采用活性炭吸附与再生工艺。活性炭吸附池投入实际运行后，在一个饱和周期130 d内，其出水COD均在50 mg/L以下，平均去除率约为45%。对所用的再生活性炭进行检测，其碘值再生率和亚甲蓝值再生率高达90%、80%以上。结果表明，活性炭吸附与再生工艺满足出水水质的要求，且节约投资，节省占地，无浓水产生，可有效的降低运行成本。更多还原

【Abstract】 The scale of a centralized wastewater treatment plant in a printing and dyeing park in eastern Guangdong Province is 75 000 m~3/d. The effluent is partially discharged into the sea and partially reused. The sea discharge section adopts coagulation sedimentation-hydrolysis acidification-AAO-MBR-ozone treatment process. The subsequent reuse process is compared in terms of treatment effect, engineering risk, investment, operating cost and maintenance, and then activated carbon adsorption and regeneration process is adopted. After the activated carbon adsorption tank was put into actual operation, its effluent COD remained below 50 mg/L within a saturation cycle of 130 days, with an average removal rate of about 45%. The regenerated activated carbon used was tested, and its iodine value regeneration rate and methylene blue value regeneration rate were over 90% and 80%, respectively. The results show that the activated carbon adsorption and regeneration process meets the requirements of effluent quality, saves investment, occupies less land, generates no concentrated water, and effectively reduces operating costs.更多还原