乳化液膜法处理六价铬的研究进展  

Experimental study on extraction of hexavalent chromium by emulsion liquid membrane

作　　者：蒋春燕 宋玉新 张彪军 李英杰[1] Jiang Chunyan;Song Yuxin;Zhang Biaojun;Li Yingjie(Faculty of Environmental Science and Technology,Kunming University of Science and Technology,Kunming 650500,Chin)

机构地区：[1]昆明理工大学环境科学与工程学院,云南昆明650500

出　　处：《云南化工》2018年第5期21-25,共5页Yunnan Chemical Technology

摘　　要：乳化液膜技术具有传质效率高、选择性好、同时进行萃取与反萃取、不受污染物浓度限制等特点,已广泛应用于有机物、重金属离子的萃取与回收、生物医学分离等领域。重点关注了国内外乳化液膜萃取六价铬的研究进展,首先简要介绍了乳化液膜萃取六价铬的机理,不仅详尽综述了不同工艺参数对萃取的影响,还着重介绍了包括工艺条件在内的各影响因素对萃取效果的协同影响,最后结合萃取过程中存在的问题,展望了未来乳化液膜的研究方向,认为如何提高乳化液膜的稳定性仍是今后的研究重点。Emulsion liquid membrane technology has high efficiency,good selectivity,simultaneous extraction and stripping characteristics,is not affected by the pollutant concentration limits,has been widely used in organic compounds,extraction and recovery of heavy metal ions,biomedical separation and other fields.This paper focuses on the research progress of emulsion liquid membrane extraction of chromium（VI）at home and abroad. The extraction mechanism of chromium（VI）by emulsion liquid membrane is presented. The effects of different process parameters on extraction were summarized,and the synergistic effect of various influencing factors on extraction efficiency was also introduced. Combined with the existing problems in the process of extraction,the research direction of emulsion liquid membrane in the future is prospected. How to improve the stability of emulsion liquid membrane is still the focus of research in the future.

关 键 词：乳化液膜法 六价铬 萃取机理 影响因素 

分 类 号：X783[环境科学与工程—环境工程]