电催化氧化法处理湿法炼锌污酸废水中的氯  

Chlorine Removal from Waste Acid of Zinc Hydrometallurgy by Electrocatalytic Oxidation Process

作　　者：郭亚丹 喻文超[2] 陈锦全 李亦然[2] 梁平[2] 李鹏[2] 王学刚[2] 

机构地区：[1]广西华锡集团股份有限公司,广西柳州545006 [2]东华理工大学水资源与环境工程学院,南昌330013

出　　处：《有色金属（冶炼部分）》2017年第12期57-62,共6页Nonferrous Metals（Extractive Metallurgy)

基　　金：中国博士后科学基金面上资助项目(2015M582748XB);江西省自然科学基金项目(20171BAB213019);江西省博士后科研择优资助项目(2016KY33)

摘　　要：采用自制的电催化氧化装置对高含氯硫酸废水进行了静态和动态连续流试验,同时考察了各因素对电催化氧化氯离子的影响。结果表明,静态试验在Cl^-浓度1 000 mg/L、pH=1.2、电流密度21mA/cm2、极板间距1cm的条件下电解30min,Cl^-去除率达89.27%;动态连续流试验在Cl^-浓度1 000mg/L、流量52.63cm3/min、电流3.4A时,Cl^-去除率达到79.52%。处理实际含氯硫酸废水时,Cl^-去除率达到了82.36%,Cl^-残留浓度低于GB/T 19923—2005回用标准限值。Static and continuous flowing experiments of high chloride-bearing simulated sulfuric acid wastewater were carried out with self-made electrocatalytic oxidation device.Influencing factors and performance of chlorine by electrocatalytic oxidation were investigated.The results of static experiments show that removal rate of Cl^- is 89.27% under the conditions including Cl^- initial concentration of 1000 mg/L,pH value of 1.2,current density of 21 mA/cm2,electrode distance of 1 cm,and electrolysis time of 30 min.The results of continuous flowing experiments show that removal rate of Cl^- is 79.52% under the conditions including Cl^- initial concentration of 1 000 mg/L,flow rate of52.63 cm3/min,and electric current of 3.4 A.Removal rate of Cl^- from industrial wastewater by electrocatalytic oxidation is 82.36%,and Cl^- content of processed value is lower than recycling standard of GB/T 19923—2005.

关 键 词：电催化氧化 除氯 硫酸废水 湿法炼锌 

分 类 号：X781.03[环境科学与工程—环境工程]