化学沉淀法处理含铬电镀废水的工程应用研究  

Applied Research on Chromium-containing Electroplating Wastewater by Chemical Precipitation Method

作　　者：孟超[1] 孟庆庆 

机构地区：[1]黑龙江省环境保护科学研究院,黑龙江哈尔滨150056 [2]黑龙江省环境监测中心站,黑龙江哈尔滨150056

出　　处：《环境科学与管理》2013年第4期106-110,共5页Environmental Science and Management

摘　　要：铬是电镀废水处理中的重点之一。金属铬几乎无毒,二价铬一般认为是无毒的,其余的铬化合物,在一定浓度下,都是有不同毒性的。三价铬的毒性约是六价铬的1/100,是人体必须有的微量元素。六价铬有致癌作用,对皮肤有剌激和过敏作用。电镀废水中主要含有六价铬化合物。文章介绍了含铬电镀废水的来源及含铬电镀废水处理工艺分类,重点介绍化学沉淀法处理电镀废水的应用。Chromium isone of the prioritiesinelectroplating wastewater treatment. Themetallic chromium ismostlynon - toxic. Thedivalentchromiumis generally considerednon - toxic, andthe rest of theehromium compounds havedifferenttoxicities at certain concentrations. Thetoxieityoflrivalent chromiumis about 1/100 ofthehexavalent chromium and it is one of thetrace elements of human body. Hexavalent chromiumhas carcinogenic effects. It can stimulate andhas allergic effeetsontheskin. Electroplating- wastewatercontainshexavalent chromium compounds. Theartiele describesthesource of electroplating wastewaterand classification of chromium - containingelectroplatingwastewater treatmentprocesses with focuses ontheapplicationofehemical precipitationtreatment of electroplating wastewater.

关 键 词：含铬电镀废水 化学沉淀法 六价铬 

分 类 号：X703[环境科学与工程—环境工程]