文献类型：期刊文献

英文题名：Adsorption of phenanthrene by quaternary ammonium surfactant modified peat and the mechanism involved

作者：Zhou, Y. B.[1];Chen, L.[1];Wang, X. Q.[1];Xu, Y. X.[1];Lu, J.[1]

机构：[1]E China Univ Sci & Technol, Coll Resource & Environm Engn, Shanghai 200237, Peoples R China

年份：2012

卷号：66

期号：4

起止页码：810

外文期刊名：WATER SCIENCE AND TECHNOLOGY

收录：;EI(收录号：20123115301892);WOS:【SCI-EXPANDED(收录号:WOS:000306243100017)】；

基金：This work was financially supported by China Postdoctoral Science Foundation (No. 2011M500744), the Specialized Research Fund for the Doctoral Program of Higher Education of China (No. 20100074120012) and Shanghai Educational Development Foundation (No. 11CG32).

语种：英文

外文关键词：adsorption; biosorbent; modification; PAHs; surfactant

摘要：Removal of phenanthrene (PHE) from aqueous solution by adsorption onto quaternary ammonium surfactant modified peat was studied. The results show that surfactant modification enhanced the PHE adsorption capacity of peat. Low temperature and neutral pH favored PHE adsorption. Peat modified with long carbon chain surfactant performed better than peat modified with short carbon chain surfactant. The magnitude of PHE adsorption capacity followed the order of MP-HPB>MP-HTAB>MP-TBAB>RP, ranged from 924 to 1,228 mu g g(-1). A negative trend between adsorption capacity (y) and (O+N)/C ratio of biosorbent (x) was observed (y = -1,369.6x + 2,176), which confirmed the negative effect of polarity on polycyclic aromatic hydrocarbon (PAH) removal. The study provides a guide to modify raw materials to enhance adsorption of hydrophobic organics.