基于响应面法优化电絮凝处理含砷冶炼废水的研究  

Research on the response surface method applied to the optimized electrocoagulation used for the treatment of arsenic-containing smelting wastewater

作　　者：胡维[1] 戴友芝[1] 彭喜[1] 刘坚[1] 杨双[1] 

机构地区：[1]湘潭大学环境科学与工程系,重金属污染控制湖南省普通高等学校重点实验室,湖南湘潭411105

出　　处：《工业水处理》2014年第2期26-29,共4页Industrial Water Treatment

基　　金：国家十一五"水体污染控制与治理"科技重大专项增补课题(2010ZX07212-008);湖南省科技厅社会发展科技支撑计划重点项目(2011SK2016);湖南省高校创新平台(重金属污染控制)开放基金项目(11k070)

摘　　要：利用电絮凝法处理含砷铜冶炼废水,采用单因素实验及响应面法对影响因素进行了研究,优化了处理条件,并运用XPS技术测定了固体中As、Fe的存在形式,探讨了作用机理。结果表明,响应曲面模型对电絮凝除砷行为拟合较好;在拟合的最佳条件下处理此冶炼废水,砷的去除率可达99%以上。XPS分析结果表明,固体中的Fe主要以Fe3+形式存在;部分As3+发生了氧化反应,生成了As5+。Arsenic/copper-containing smelting wastewater has been treated by electro-coagulation process. The in- fluencing factors have been studied by single-factor tests and response surface method, and the treatment conditions optimized. The existing forms of As and Fe in solid have been determined by XPS techniques, and its action mecha- nisms discussed. The results show that the response curved surface model fits the arsenic removing behavior quite well. The arsenic removing rate can be above 99%, if the smelting wastewater is treated under optimal conditions fit- ted. XPS analysis results show that Fe in solid exists mainly in form of Fe3＋. Part of As3＋ has oxidation reaction and forms As5＋.

关 键 词：电絮凝 响应面法 砷 铜冶炼废水 

分 类 号：X703[环境科学与工程—环境工程]