城市污水深度处理及中水回用

ADVANCED TREATMENT OF URBAN SEWAGE AND REUSE OF TREATED WATER

介绍了一套日处理量9 600 t的中水回用工程,该工程应用生化+两级过滤+反渗透工艺深度处理二级城市污水并将产水回用于热电厂的循环冷却水及锅炉补给水的源水。探讨了该工艺关键单元的作用及特点并考察了其运行效果。结果表明:该工艺运行稳定,产水各项指标满足该热电厂对回用水的要求。

An engineering example was introduced in which biological treatment, two stage filtration and reverse osmosis process were applied to treat urban sewage for circulating cooling water and source water of boiler make-up water treatment system of the thermal power plant, whose designing ability was 9 600 t/d. The function and characteristics of the key technological units were also investigated. The operational results showed that the process was reliable and the effluent quality could meet the index requirements of reuse water for thermal power plants.