电混凝-微滤工艺深度处理污水厂二级出水  

TREATMENT OF MUNICIPAL WASTEWATER SECONDARY EFFLUENT BY ELECTRO COAGULATION-MICROFILTRATION PROCESS

作　　者：金伟 丁洁然 董亚荣 JIN Wei;DING Jie-ran;DONG Ya-rong(Hebei University of Environment Engineering,Qinhuangdao 066102,China)

机构地区：[1]河北环境工程学院,河北秦皇岛066102

出　　处：《环境工程》2018年第8期60-64,共5页Environmental Engineering

基　　金：河北省科技厅科技计划项目(16273105);河北省高等学校科学技术研究青年基金项目(QN2017056);秦皇岛市科技计划项目(201602A057);河北环境工程学院院级课题(Z201501;ZRZD201701);河北环境工程学院院级课题(ZRZC201603);秦皇岛市污水资源化重点实验室(201704B016)

摘　　要：采用电混凝-微滤组合工艺处理城市污水厂二级出水,考察组合工艺的处理效果及电混凝作为微滤进水的预处理对微滤膜污染的改善情况。结果表明:组合工艺出水浊度为0.07~0.19 NTU;ρ(BOD5)、ρ(NH_3-N)、ρ(TP)分别为2.5~4.9,3.3~4.5,0.14~0.44 mg/L,可满足GB/T 18921—2002《城市污水再生利用-景观环境用水标准》和GB/T19923—2005《工业用水标准》。另外,电混凝预处理能够减轻微滤膜的膜污染,改善微滤膜的膜通量,提高膜的产水率,可以作为膜前预处理工艺。The treatment of municipal wastewater secondary effluent by electro coagulation-microfiltration process was investigated to obtain the efficiency of this process and performance of electro coagulation as a pretreatment for membrane fouling control. The resuhs showed that turbidity in effluent was 0.07-0.19 NTU, and p（ BOD5 ） , p（ NH3-N） and p（TP） in effluent were 2.5 -4.9,3.3-4.5, 0.14-0.44 mg/L respectively, which met ＂ Urban Recycling-Landscape and Environmental Water Standards＂ （ GB/T 18921--2002） and ＂Industrial Water Standard＂ （ GB/T 19923--2005 ）. Moreover, electro coagulation pretreatment could reduce membrane fouling in microfiltration in order to improve membrane flux and water production, and could be used as a pretreatment of microfiltration for municipal wastewater treatment.

关 键 词：电混凝 微滤 二级出水 预处理 膜污染 

分 类 号：X703[环境科学与工程—环境工程]