摘要
针对机械加工企业酸洗磷化废水,采用"隔油+中和沉淀+生化+混凝沉淀+活性炭吸附+超滤+反渗透"工艺进行处理,通过工程实例分析了组合工艺处理效果与运行成本。结果表明,组合工艺出水COD、总磷、总铁、TDS达到《城市污水再生利用工业用水水质》(GB/T 19923-2005)工艺与产品用水标准要求,出水电导为50~150μs/cm,吨水直接运行成本为6.605元。
A process of "oil separation + neutralization precipitation + biochemical treatment +coagulation sedimentation + activated carbon adsorption + ultrafiltration/reverse osmosis"was adopted to treat pickling phosphating wastewater in one machining company.The treatment effect and operation cost was analyzed in this case.The results showed that the effluent COD,total phosphorus,total iron,and TDS satisfied the technology and product water standard of the reuse of urban recycling water-water quality standard for industrial uses( GB/T 19923-2005). The effluent conductivity was 50 ~ 150 μs/cm,and the direct operation cost was 6.605 yuan/t.
作者
吴斌
WU Bin(Hangzhou Environmental Protection Research Institute of China Coal Technology&Engineering Group,Hangzhou 311201,China)
出处
《能源环境保护》
2020年第1期65-67,共3页
Energy Environmental Protection
关键词
酸洗磷化
废水处理
回用
超滤/反渗透
Pickling phosphating
Wastewater treatment
Reuse
Ultrafiltration/reverse osmosis
