电渗析法处理含铬废水的研究  

Study on Treatment of Chrome Wastewater by Electrodialysis Process

作　　者：邓永光 叶恒朋[2] 黎贵亮 杜冬云[2] 张丽云 

机构地区：[1]中信大锰矿业有限责任公司,南宁530028 [2]中南民族大学,武汉市重金属废水处理与回用工程技术研究中心,化学与材料科学学院/催化材料科学教育部-国家民委重点实验室,武汉430074

出　　处：《工业安全与环保》2013年第1期35-37,共3页Industrial Safety and Environmental Protection

摘　　要：建立了一套电渗析法处理电解锰厂铬钝化清洗废水的小试装置,以某电解锰厂铬钝化清洗废水为处理对象,通过实验确定了电渗析法的极限电流密度,研究了电压、进水流量、进水浓度、浓水循环等参数对电渗析处理工艺出水水质的影响。结果表明,该电渗析装置的极限电流为0.41 A,极限电流密度为1.33mA/cm2;最佳操作电压20 V,适宜的进水流量20 L/h,进水浓度对淡水水质影响不大;采用浓水循环工艺,淡水产率可提高至约80%,浓室总铬、锰离子质量浓度超过4 000 mg/L,为浓水的后续处理处置创造了条件。In this study,a small scale experiment is carried out for the treatment of chrome wastewater by electrodialysis process.The run characteristics,such as limiting current density,voltage,inflow rate,inflow concentrations and the recycling of condense water are studied.The results show that the limiting current is 0.41 A and the limiting current density is 1.33 mA/cm2;the optimum run voltage is 20 V,the proper inflow rate is 20 L/h and the inflow concentration of chrome and manganese affects little the effluent water quality;the output rate of fresh water can be increased to 80% by circling the condensing water and the total-Chrome and Mn2+ of condensing room exceeds 4 000 mg/L,advantageous to the follow-up treatment.

关 键 词：电渗析 电解锰 含铬废水 锰 

分 类 号：X703[环境科学与工程—环境工程]