聚丙烯酰胺废水的混凝—吸附优化研究  

Study on the optimization of polyacrylamide wastewater treatment by coagulation-adsorption

作　　者：李振玉[1] 孙亚兵[1] 徐建华[1] 陈颖[1] 缪虹[1] 王瑾瑜[1] 王惠英[1] 冯景伟[2] 

机构地区：[1]南京大学环境学院污染控制与资源化研究国家重点实验室,江苏南京210093 [2]合肥工业大学市政工程系,安徽合肥230009

出　　处：《工业水处理》2011年第6期49-51,69,共4页Industrial Water Treatment

基　　金：城市黑臭河道外源阻断;工程修复与原位多级生态净化关键技术研究与示范(2009ZX07317-006)

摘　　要：利用凹凸棒土作为混凝的晶核,采用聚合氯化铝（PAC）作为絮凝剂,研究了处理聚丙烯酰胺（PAM）废水的混凝优化条件。实验表明：只用凹凸棒土作为晶核,可使COD下降30.45%左右;只用PAC作为混凝剂,可使COD下降达43.22%;每200 mL废水中加入75 mg PAC,PAC/凹凸棒土按质量比4∶1投加时,COD去除率为52.32%;每200 mL废水中加入100 mg PAC,PAC/凹凸棒土按质量比6∶1投加时,COD去除率为54.38%。在最优配比下,pH为6~6.5时,COD去除效率最高。The optimization of polyacrylamide（PAM） wastewater treatment by coagulation-adsorption has been studied.Attapulgite is used as the coagulation crystal nucleus and poly-aluminium chloride（PAC） as coagulant.Experimental results show that COD decreases by 30.45% or so by using attapulgite as crystal nucleus only,and decreases by 43.22% by using PAC as coagulant only.When 75 mg of PAC per 200 mL wastewater is added,and the mass ratio of PAC to attapulgite is 4∶1,the COD decreases by 52.32%.When 100 mg of PAC per 200 mL wastewater is added,the mass ratio of PAC to attapulgite is 6∶1,the COD decreases by 54.38%.According to the optimal ratio,when the pH is 6-6.5,the peak of COD removal rate reaches.

关 键 词：凹凸棒土 聚丙烯酰胺 聚合氯化铝 混凝 

分 类 号：X703.1[环境科学与工程—环境工程]