蕉藕淀粉废水絮凝试验  

Experiment on Cana Starch Wastewater with Flocculants

作　　者：刘忠[1] 张知锦[1] 

机构地区：[1]乐山师范学院化学与生命科学院,四川乐山614000

出　　处：《环境科学与技术》2010年第11期146-148,共3页Environmental Science & Technology

基　　金：乐山市科技局项目(06ASZD105)

摘　　要：试验采用化学混凝法对蕉藕淀粉加工产生的废水进行处理,研究了硫酸铝,氯化铁,聚合硫酸铁(PSF),聚合氯化铝(PAC),聚丙烯酰胺(PAM)等不同混凝剂种类和投加量对COD、SS和TP去除效果的影响。试验结果表明,聚合氯化铝处理效果最佳,在废水COD、SS和TP的浓度分别为8340mg/L、7060mg/L和320mg/L时聚合氯化铝以500mg/L的用量得到COD、SS和TP的去除率分别为97.1%、98.0%和70%,出水的COD为241mg/L,SS为142mg/L,TP为112mg/L。Chemical precipitation was used to treat wastewater of Cana starch.The influence of variables and dosage of coagulants including Al(2SO4)3·6H2O,FeCl3·6H2O,poly-Fe(2SO4)3(PSF),poly-AlCl(3PAC)and polyacrylamide(PAM) on removal of COD,SS and TP were studied.Results demonstrated that poly-AlCl3 was the best selected coagulants,when COD,SS and TP concentration in wastewater were 8,340mg/L,7,060mg/L and 320mg/L,at the dosage 500mg/L of PAC the removal efficiency of COD,SS and TP were 97.1%,98.0% and 70.0% respect...

关 键 词：蕉藕淀粉 废水 处理 絮凝 聚合氯化铝 

分 类 号：X703[环境科学与工程—环境工程]