摘要
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)。
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.
出处
《环境科学与技术》
CAS
CSCD
北大核心
2008年第6期119-121,共3页
Environmental Science & Technology
关键词
污水回用
混凝沉淀
超滤
预处理
wastewater reuse
coagulation-sedimentation
ultrafiltration
pretreatment
