膨润土吸附性能及在废水脱色处理中的应用  

Adsorption performance of bentonite and its application in decolorization of wastewater

作　　者：陈立[1,2] 祝建中 方园园[1,2] 胡洁 吴绍凯[1,2] 付婷 

机构地区：[1]浅水湖泊综合治理与资源开发教育部重点实验室,江苏南京210098 [2]河海大学环境学院,江苏南京210098

出　　处：《应用化工》2017年第11期2236-2240,共5页Applied Chemical Industry

基　　金：中央高校业务费(2016B04614);国家重大仪器设备开发专项经费(2014YQ060773);江苏省水利科技项目(1061-516018612);江苏高校优秀学科建设工程资助项目(RAPD)

摘　　要：介绍了膨润土的分子特点、物理化学性质及其作为吸附剂的优点,探讨了膨润土的吸附机理,综述国内外对膨润土在废水脱色处理中的应用研究进展,分析了膨润土吸附效果的影响因素(包括初始pH、废水浓度、吸附温度、投加量),吸附污泥的再生研究现状。在此基础上指出膨润土吸附废水脱色处理技术需要进一步研究的问题和发展的方向。This paper introduces the molecular characteristics,physical and chemical properties of bentonite as adsorbent and its advantages,discusses the adsorption mechanism of bentonite,application of bentonite in wastewater decolorization. The research progress of the application of bentonite in wastewater treatment at home and abroad was reviewed. The factors affecting bentonite are analyzed,such as: initial pH,concentration of wastewater and the adsorption temperature,the dosage. Research status on the regeneration of adsorption sludge. On this basis,the author points out the problems and development direction of the technology of wastewater treatment.

关 键 词：膨润土 吸附 机理 因素 脱色 

分 类 号：TQ050.4[化学工程] TQ028