期刊名称：International Research Journal of Environmental Sciences
电子版ISSN：2319-1414
出版年度：2015
卷号：4
期号：11
页码：1-1
语种：English
出版社：International Science Community Association
摘要：Investigation was carried out to analyze the biosorption behavior of the Mangrove fern (Acrostichum aureum L.) leaf biomass, for the removal of heavy metals from the aqueous solution. The uptake for Cu (II), Pb (II) and Zn (II) were 46.86 ± 0.54, 47.21± 0.65 and 47.81± 0.43 mg g -1 respectively when 500 mg L -1 of the metal solution was used. The Langmuir and Freundlich equilibrium adsorption isotherms were studied and data obtained from equilibrium experiment are found well fitting with the Freundlich model than the Langmuir model with correlation coefficient of 0.99. Kinetic studies indicated that biosorption of heavy metal by the mangrove fern followed well the pseudo second order. The presence of hydroxyl, carboxyl, and amino groups in the biomass and their role in metal ion adsorption process was confirmed by FTIR studies. By this study plentifully accessible a new biosorbent for the exclusion of heavy metals from the polluted water was identified.
