膜生物反应器在电厂生活污水处理与污泥减量工程中的应用

Full-scale Application of Membrane Bioreactor in Domestic Wastewater Treatment and Sludge Reduction in a Power Plant

吴泾热电厂采用"缺氧/好氧膜生物反应器(AO MBR)+紫外消毒"工艺进行了生活污水处理系统改造,通过一体化AO MBR设备实现了污染物的高效去除,出水可稳定达到《城市污水再生利用工业用水水质》(GB/T 19923—2005)"敞开式循环冷却水系统补充水"标准的要求,可作为工业用水和消防用水的补充。该系统通过耦合同步膜浓缩消化工艺实现了污泥源头大幅度减量。100 m^3/d的工程实践表明,该工艺具有出水水质好、占地面积小、污泥产率低、自动化程度高等优点。

The"Anoxic/Oxic with MBR+ultraviolet(AO MBR+UV)disinfection"process was applied in Wujing Thermal Power Plant for upgrading of the domestic wastewater treatment system,and achieved efficient pollutants removal by integrated AO MBR equipment.The effluent can be reused as industrial water and fire water,with its quality complying with requirement of open-type supplementary water for circulating cooling water system specified in The reuse of urban recycling water——Water quality standard for industrial uses(GB/T 19923—2005).The significant sludge reduction was achieved by coupling with the system with membrane sludge thickening and digestion.Operation results of the 100 m^3/d project showed that the process had advantages of excellent effluent quality,small footprint,low sludge production and high automation.