水体pH对化学混凝除COD的影响研究  

Study on Influence of pH in Water on COD Removal by Chemical Coagulation

作　　者：周斌 王桂玉 赵志萍 李光辉 

机构地区：[1]常州友邦净水材料有限公司,江苏常州213164

出　　处：《安徽农业科学》2013年第27期11109-11109,11116,共2页Journal of Anhui Agricultural Sciences

摘　　要：[目的]研究水体pH对化学混凝除COD的影响。[方法]以新配制的COD标准溶液为研究对象,选取PAC、PAFC、PAFS和PFS 4种絮凝剂,考察pH对化学混凝除COD的影响。[结果]PAC、PAFC、PAFS的最佳絮凝pH为6,COD的去除率分别达到28.8%、28.8%和27.3%;PFS的最佳絮凝pH为9,COD去除率达到40.7%。[结论]该研究可为水体COD的化学混凝去除提供参考。[ Objective] The research aimed to study influence of pH in water on COD removal by chemical coagulation. [ Method] The newly prepared COD standard solution as research object,four kinds of floceulants （PAC ,PAFC, PAFS and PFS） were selected to inspect influence of pH on COD removal by chemical coagulation. [ Result] The optimum floceulation pH of PAC ,PAFC and PAFS was 6 ,and removal rates of COD respectively reached 28.8% ,28.8% and 27.3%. The optimum flocculation pH of PFS was 9 ,and removal rate of COD reached 40. 7%. [ Con- clusion] The research could provide reference for COD removal in water by chemical coagulation.

关 键 词：PH COD 化学混凝 絮凝剂 

分 类 号：S271[农业科学—农业水土工程]