采选矿废水中高浓度砷治理工艺的试验研究  

An Experiment and Research for the Technology to Treat the High Concentration Arsenic in Wastewater

作　　者：曾能周 

机构地区：[1]始兴县环境监测站,广东始兴512500

出　　处：《广州化工》2009年第1期125-126,144,共3页GuangZhou Chemical Industry

摘　　要：采用絮凝共沉淀法(石灰-亚铁法)工艺治理高浓度砷废水,即通过加入石灰乳调节pH=10、加入亚铁盐产生Fe2+离子,使其形成氢氧化物胶体吸附并与废水中的砷反应,生成难溶盐沉淀而将其除去。实验表明,出水水质可达到0.50 mg/L,且废水中的pH值对重金属的去除影响很大。A high concentration of method of fluffy masses, i.e., regulating the wastewater with arsenic was pH=10 by adding lime curd and treated by adopting the precipitation producing the ion of Fe^2＋ by adding ferrocyanide salts to make it turn into oxide hydroxide colloidal to adopt and react with the arsenic in the wastewater, form a non-soluble salts colloid and remove it. The experiment led up to the fact that the water quality would reach 0.50 mg/L and the pH would have a great effect upon the removal of heavy metal.

关 键 词：含砷废水 絮凝共沉淀法 治理工艺 

分 类 号：X751[环境科学与工程—环境工程] X781.103