Decentralized sewage remediation in drinking water source protection zones of rural areas in Beijing

摘要

A suitable treatment method for decentralized sewage remediation in drinking water protection source zones of rural areas in Beijing is concerned in this paper. For anaerobic biological treatment process, it has the lowest construction and operating costs, but its treatment effect is poor. The MBR process has the feature of high operating cost, complicated operation and membrane's short-lived lifetime. For aerobic biological treatment process, the effluent still can not attain the discharge standard. A transformed treatment process-'A2/O + the quartz sand filtration + activated carbon adsorption', with a satisfied treatment effect, is proposed in this paper.