混凝沉淀-超滤深度处理城市污水的试验研究

研究了混凝沉淀—超滤对某污水厂二级出水的处理效果,结果表明该工艺对浊度的去除效果较好,出水浊度<1.0NTU,对有机物高锰酸盐指数、TOC的去除率分别为30%、20%,对重金属铅,镉,砷的去除率一般都在60%左右,对微生物去除率都在98%以上,出水SDI值均<3。经消毒处理后出水各指标均达到城市杂用水水质标准(GB50336-2002)。

Experimental Study on Advanced Treatment of Municipal Wastewater by Coagulation-Sedimentation-UF

Treatment efficiency of effluents from a wastewater treatment in Handan City,Hebei Province was studied.Results showed that removal of turbidity by coagulation-sedimentation-UF was very efficient,with turbidity of effluents less than 1.0NTU,removal efficiency of CODMn and TOC respective about 30% and 20%.More than 98% microorganism can be removed,and 60% heavy metals including Pb,Cd and As can be removed,with SDI of the effluent less than 3.After the process of infection,the effluents can satisfy the discharge criteria of urban mixed water of GB50336-2002.