电凝聚气浮强化一级处理城市生活污水的试验研究  

STUDY ON DNBANCED PRIMARY TREATMENT DOMESTIC SEWAGE BY ELECTROCOAGULATION AND ELECTROFLOATATION PROCESS

作　　者：杨毅[1] 金奇庭[1] 

机构地区：[1]西安建筑科技大学环境与市政工程学院,陕西西安710056

出　　处：《水处理技术》2004年第6期359-361,364,共4页Technology of Water Treatment

基　　金：陕西省科技攻关项目(2000K13-G10)

摘　　要：本文研究电凝聚气浮强化一级处理城市污水的有效性和可行性。采用阳阴级分别为铝板和铁板的电极构造方式进行静态实验、动态实验以及有机物存在状态与去除特性的研究。静态实验结果表明：在原水pH值6.8、电解时间30min、电流密度0.25A／dm^2的条件下，COD、SS及色度去除率分别在70％、70％和88.1％以上，出水COD、SS及色度值分别在120mg／L、40mg／L和40倍以下。动态试验结果表明：COD去除率在70％左右，SS、色度去除率在70％和80％以上，出水COD、SS及色度值分别在120mg／L、50mg／L和50倍以下。The usefulness and feasibility to enhance primary treat of municipal domestic sewage by electrocoagulation and electrofloatation processes were studied. The electrode structure form with aluminum-iron was adoped to carry out static test, dynamic test and the studies on existing state and removal characteristics of organics. The results of the static test showed under that the conditions of raw water pH:=6.8, electrolysis time 30min and current density 0.25A/dm2 the removal rate of COD, SS, and color degree were above 70%, 70% and 88.1% respectively, and COD, SS and color degree were below 120mg/L, 40mg/L and 40 times respectively. The results of the dynamic test showed that COD removal rate was about 70%; the removal rate of SS and color degree were above 70% and 80% respectively, and COD, SS and color.degree of effluent water were below 120mg/L, 50mg/L and 50 times respectively.

关 键 词：强化一级处理 COD 气浮 静态实验 色度去除率 城市生活污水 电凝聚 去除特性 出水 原水 

分 类 号：P642.22[天文地球—工程地质学] X703[天文地球—地质矿产勘探]