过氧化氢催化氧化法处理高浓度含氰废水研究  

Research on treatment of wastewater containing high concentration of cyanide by hydrogen peroxide catalytic oxidation

作　　者：周珉 黄仕源 瞿贤 

机构地区：[1]上海化学工业区水研究中心,上海201507

出　　处：《工业用水与废水》2013年第5期31-34,共4页Industrial Water & Wastewater

摘　　要：采用过氧化氢催化氧化法处理高浓度含氰废水,考察了过氧化氢浓度、铜离子浓度、反应pH值及反应时间等反应条件对总氰化物去除效果的影响。研究结果表明,当总氰化物的质量浓度为874 mg/L时,在过氧化氢的质量浓度为3.09 g/L、铜离子的质量浓度为50 mg/L、反应pH值为9、反应时间为1 h的最佳条件下,总氰化物去除率达到97.6%。铜离子能加快过氧化氢氧化氰根的反应速率。此外,在实际工程应用中,过氧化氢实际投加量比理论投加量要大。Using hydrogen peroxide catalytic oxidation process to treat wastewater containing high concen- tration of cyanide, the influences of hydrogen peroxide concentration, copper ions concentration, pH value and time of reaction on total cyanide removal were investigated. The research results showed that, under the optimal condition that, the mass concentrations of total cyanide, hydrogen peroxide and copper ions were 874 mg/L, 3.09 g/L and 50 mg/L respectively, the pH value was 9, the reaction time was 1 h, the removal rate of total cyanide reached 97.6%. Copper ions can greatly accelerate the reaction rate of cyanide removal. In addition, the dosage of hydrogen peroxide in actual project is larger than the theoretical consumption.

关 键 词：过氧化氢 铜离子催化 含氰废水 

分 类 号：X703.1[环境科学与工程—环境工程]