化学混凝法处理选矿废水的实验研究  

Experimental Study on Mineral Dressing Wastewater Treatment by Chemical Coagulation

作　　者：吴烈善[1] 覃登攀[1] 唐景静[1] 唐植成[1] 

机构地区：[1]广西大学化学化工学院,广西南宁530004

出　　处：《矿业安全与环保》2007年第5期15-17,共3页Mining Safety & Environmental Protection

基　　金：广西科学研究与技术开发计划项目(桂科攻0697003)

摘　　要：采用混凝法处理广西河池某锡矿废水,探讨了该废水处理的最佳混凝剂和最佳的混凝条件。结果表明,FeCl3·6H2O(FC)是最佳混凝剂,在pH=8.0时,每300mL的废水中投加0.40mL质量分数为5%的FeCl3·6H2O后,再投加0.20mL质量分数为0.1%聚丙烯酰胺(PAM)是处理该废水的最佳用量,废水经处理后浊度从2700NTU降到2.0NTU以下。The mineral Dressing of wastewater from a Tin resource company in Hechi, a city of Guangxi, was studied by chemical coagulation in this paper. The types of optimum coagulant including its desired amount solution and the optimal dressing conditions were discussed. The results showed that FeCl3·6H2O (FC) is the best coagulant for treatment of the Tin mineral washing wastewater. The optimal pH value of FC is above 8.0, in this experiment, chose the value of pH at 8.0. At optimal coagulant dosage condition , 0.40 mL of ferric chloride (FeCl3·6H2O) solution at 5%(weight/volume) and 0.20 mL of polyacrylamide (PAM) solution at 0.1%(weight/volume) were added in sequence to 300 mL volume of wastewater, the turbidity of wastewater reduced remarkably from 2700 NTU to lower than 2.0 NTU.

关 键 词：化学混凝法 氯化铁 选矿废水 处理 

分 类 号：X751[环境科学与工程—环境工程]