三价铁盐沉淀-Fenton联合工艺处理HEDP预镀铜废水  

TREATMENT OF HEDP COPPER-ELECTROPLATING WASTEWATER WITH COMBINED PROCESS OF FERRIC IRON PRECIPITATION AND FENTON OXIDATION

作　　者：王海阳[1] 戴友芝[1] 袁艳伟[2] 谢欢[2] 胡德意[2] 罗咏[1] 

机构地区：[1]湘潭大学环境工程系,重金属污染控制湖南省高校重点实验室,湖南湘潭411105 [2]江南机器集团有限公司,湖南湘潭411207

出　　处：《水处理技术》2011年第10期96-99,共4页Technology of Water Treatment

基　　金：湖南省环境保护科技项目(湘财建指[2009]364号);国家“十一五”水专项湘江课题子课题3(2009ZX07212-001-03)

摘　　要：采用三价铁盐沉淀-Fenton氧化联合工艺处理湖南某电镀厂羟基亚乙基二膦酸(HEDP)预镀铜废水,研究了三价铁盐沉淀阶段pH、Fe3+投加量、反应时间及Fenton反应阶段pH、H2O2投加量、m[Fe2+]/m[H2O2]、反应时间等因素对处理效果的影响。结果表明,采用三价铁盐沉淀-Fenton氧化工艺能有效处理HEDP预镀铜废水;在优化反应条件下,TP、COD和Cu2+去除率分别达到99.97%、97.88%和99.87%,出水优于电镀污染物排放标准(GB 21900-2008)要求。The research is about the treatment of HEDP copper-eleetroplating wastewater generated in the manufacturing line of a electroplate factory in Hunan with combined process of ferric iron precipitation and fenton oxidation. The treatment efficiency and main factors of the combined process were investigated in the treatment ofHEDP copper-electroplating wastewater. The main conclusions were as follows： （1） HEDP copper-electroplating wastewater can be treated efficiently by combined process of ferric iron precipitation and fenton oxidation. （2） The optimum conditions of ferric iron precipitation process were as follows： initial pH value 2.5, Fe3＋ dosage 1 100 mg.L-1 and reacting time 10 min. The optimum conditions of fenton oxidation process were as follows： initial pH value 2.5, H2O2 dosage 0.5 mL-L-1, m[Fe2＋]/m[H2O2]=1.0, and reacting time 20 min. （3） Under the optimal conditions, the removal rate of total phosphorous, COD and copper reached 99.97%, 97.88%and 99.87% respectively. The treated water met the emission standard of GB 21900- 2008.

关 键 词：三价铁盐沉淀 FENTON HEDP 镀铜废水 联合工艺 

分 类 号：X781.1[环境科学与工程—环境工程]