寿光市城市污水处理系统改造实例

Renovation of Municipal Wastewater Treatment System in Shouguang

寿光市城市污水中约 6 0 %为工业废水 ,各企业以前将工业废水经二级处理后排入城市污水管网 ,城市污水处理厂使用芦苇湿地系统。为减轻企业负担 ,发挥规模效益 ,现各企业的工业废水降级处理 ,即经一级处理后排入城市污水管网 ,而在湿地系统前增设稳定塘预处理系统。经过近 2年运行 。

About 60% of the inflow of the urban sewer network in Shouguang City, Shandong Province was believed to be secondary effluent of the in plant industrial wastewater treatment units. There is an artificial wetland system with reed growth at the municipal wastewater system. As an overall strategy to decrease the charges of the enterprises and to exploit the wholesale advantages, a stabilizing pond was added before the wetland system and the in plant wastewater was degraded to primary treatment. The new arrangement has been put into operation for two years and the expected result has been obtained.