活化沸石去除废水中LAS的试验研究  

Experiment and Research on The Removal of LAS in Waste Water by Modified Zeolite

作　　者：肖举强[1] 魏朝燕[1] 

机构地区：[1]兰州交通大学环境与市政工程学院,甘肃兰州730070

出　　处：《硫磷设计与粉体工程》2007年第5期19-22,共4页Sulphur Phosphorus & Bulk Materials Handling Related Engineering

摘　　要：LAS已成为环境污染中最常见的具有代表性的一类有机污染物。天然沸石经活化处理后具有良好的吸附功能。采用十六烷基三甲基溴化铵(HDTMA)对白银沸石进行活化,分析了HDTMA-沸石的制备以及沸石的粒径、用量、反应时间、pH值、LAS浓度,以及共存PO43-对吸附水中的阴离子表面活性剂(LAS)的影响,据此确定了最佳试验条件。并探讨了活化沸石对LAS的吸附机理。LAS has become the most common and most typical type of organic pollutant in the environmental pollution.Natural zeolite,when activated,has excellent absorptive property.For the baiyin zeolite activated by hexadecyldimethylammonium bromide(HDTMA),the preparation of HDTMA-zeolite and zeolite particle size,consumption,reaction time,pH value,LAS concentration,and the impact by the co-existing PO3-4 on the anionic surfactant(LAS) in the absorbed water is analyzed,and the optimum experimental conditions are accordingly identified.And the mechanism for the absorption of LAS by the activated zeolite is discussed.

关 键 词：HDTMA-沸石 去除LAS 吸附 试验 研究 

分 类 号：X703[环境科学与工程—环境工程]