文章基本信息

标题：Thermodynamic and isothermal study on the sorption of heavy metals from aquous solution by water hyazinth (E.crassipes) biomass,
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作者：Dixit A. ; Dixit S. ; Goswami C.S. 等
期刊名称：Journal of Materials and Environmental Science
印刷版ISSN：2028-2508
出版年度：2014
卷号：5
期号：2
页码：540-546
出版社：University of Mohammed Premier Oujda
摘要：Present paper signifies the effect of temperature on the removal of heavy metal Cd2+, Cr2+Pb2+and Zn2+ion fro m aqueous solution using E.crassipes biomass in a batch sorption process. From the results it is concluded that the mo st suitable sorption temperature for the sorption process through the biomass is 300C with maximum sorption capacities of 4.2, 3.34, 5.28 and 3.2 mg/g respectively for Cd2+, Cr2+Pb2+and Zn2+ metal ions. In thermodynamical study various parameters, such as ΔGo, ΔHo, ΔSohave been calculated. The data showed that the sorption process is spontaneous and exothermic in nature and that lo wer solution temperatures favors metal ion removal by the biomass. The findings of this investigation suggest that physical sorption plays a role in co ntrolling the sorption rate
关键词：Adsorption; E.crassipes; Dry biomass; Heavy metals; thermodynamics; eco;friendly