吸附—电化学法组合工艺处理废乳化液  

Treatment of waste emulsion by adsorption-electrochemical combined process

作　　者：徐正超 刘阳 王世琦 马聪 方峰[2] XU Zhengchao;LIU Yang;WANG Shiqi;MA Cong;FANG Feng(Zhangjiagang Green Tech Environmental Protection Equipment Co.LTD.,Suzhou 215625,China;School of Materials Science and Engineering,Southeast University,Nanjing 211189,China)

机构地区：[1]张家港格林台科环保设备有限公司,江苏苏州215625 [2]东南大学材料科学与工程学院,江苏南京211189

出　　处：《化工环保》2019年第4期408-412,共5页Environmental Protection of Chemical Industry

基　　金：国家自然科学基金面上项目（51371050）;江苏省青年基金项目（BK20180264）;张家港市科技计划项目（ZKS1601）

摘　　要：以季铵盐改性硅藻土为吸油剂,采用吸附—电化学组合工艺处理拉丝废乳化液,优化了工艺条件。实验结果表明,在乳化液pH为5.0、吸油剂加入量为20 g/L、反应温度为25℃的最优条件下吸附除油15 min,然后在清液pH为8.5、阳极电流密度为4 A/dm^2的最优条件下电化学反应4 h后,废水无色无味,COD为43 mg/L,ρ(NH3-N)=0,ρ(Cu)=1.6 mg/L,ρ(Zn)=3.7 mg/L,浊度为1.1 NTU,达到GB 8978—1996污水综合排放标准。The waste emulsion in wire drawing process was treated by combined adsorption-electrochemical process using quaternary ammonium salt modified diatomite as oil absorbent,and the process conditions were optimized.The experimental results showed that after oil-removal for 15 min under the optimal adsorption conditions of emulsion pH 5.0,oil absorption agent amount 20 g/L and reaction temperature 25℃,and then electrochemical reaction under the optimal conditions of liquor pH 8.5 and anode current density 4 A/dm^2,the wastewater was colorless and odorless with COD=43 mg/L,ρ(NH3-N)=0,ρ(Cu)=1.6 mg/L,ρ(Zn)=3.7 mg/L,turbidity=1.1 NTU,which meet the emission standard of GB 8978-1996.

关 键 词：废乳化液 吸附 除油 电化学法 

分 类 号：X592[环境科学与工程—环境工程]