黄河口地区城市污水的再生回用技术中试实验研究

Pilot Scale Experimental Study on the Recycling Technology of Municipal Wastewater in Yellow River Estuary Area

黄河口地区城市污水厂的一级A出水与城市再生利用的水质标准相比,水中氯化物、溶解性总固体(TDS)、硫酸盐、总硬度四项指标不满足其回用水水质要求,采用浸没式超滤+反渗透组合进行中试,超滤回收率90%以上,反渗透回收率50%,进膜压力1.3MPa时,运行成本1.017元/m3,可使回用水指标达到所有回用水的水质要求。

The level-A water of the city sewage plant in Yellow River Estuary area compared with the urban recycling water quality standard,four indicators of the level-A water,chloride,soluble,total solid(TDS),sulfate,total hardness,do not meet the requirements of the urban recycling water quality standard.Using immersion ultrafiltration and antiosmosis composite to pilot,the recovery rate of the ultrafiltration is more than 90%,the recovery rate of antiosmosis is 50%,when the pressure of into-antiosmosis is 1.3 MPa,the running cost is 1.017 yuan per cubic meter,the index of recycle water can reach the urban recycling water quality standard.