乳状液膜法治理草甘膦废水  

TREATMENT OF GLYPHOSATE WASTEWATER BY EMULSION LIQUID MEMBRANE SYSTEM

作　　者：胡筱敏[1] 周宁[1,2] 欧云川[2] 李鹏[2] 宇秉勇[2] 

机构地区：[1]东北大学资源与土木工程学院,沈阳110004 [2]沈阳化工研究院,沈阳110021

出　　处：《环境工程》2012年第3期34-37,共4页Environmental Engineering

基　　金：国家科技支撑计划课题(2006BAE01A08-02)

摘　　要：采用液膜分离技术从草甘膦生产废水中回收可利用资源草甘膦,并通过实际工业废水进行验证。主要考察了外水相pH值、乳水比及内水相浓度对草甘膦去除的影响。试验结果表明:以航空煤油为溶剂,3%表面活性剂(质量分数),4%载体(体积分数),10%NaOH内水相,油内比Roi为2∶1乳状液膜体系,处理初始浓度为1%的草甘膦工业废水,在pH值为2,乳水比Rew为1∶5的传质条件下,草甘膦去除率可达85%以上。Liquid membrane technique is a modern separation technique in recent year that has efficient, speedy and simple characteristics. This paper elaborates on treatment of glyphosate wastewater with emulsion liquid membrane and found appropriate conditions by experimentation. When it deal with glyphosate wastewater, glyphosate can be recovery. The optimum membrane composition and technique on extracting of glyphosate wastewater were studied. The effect on removal rate of glyphosate of the external pH concentration, the ratio of emulsion and water, the internal concentration was examined. The experimental results show that when 10% NaOH （mass fration） as internal aqueous phase; pH of external aqueous phase was 2; Roi=2：1 ; Rew = 1： 5, the removal rate of 1% glyphosate was higher than 85%.

关 键 词：乳状液膜 萃取 草甘膦 

分 类 号：X786[环境科学与工程—环境工程]