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标题：Factors and Kinetics Involved in Adsorption of Copper from Aqueous and Waste Water onto Pongamia Pinnata
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作者：M.MAMATHA ; H.B.ARAVINDA ; E.T.PUTTAIAH 等
期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2013
卷号：2
期号：4
页码：1091
出版社：S&S Publications
摘要：Presence of copper in the water used for various activities affects living beings in its own way depending onits concentration. Considering the effects of high dose of copper concentration on humans and animals, it is importantto remove this metal ion from industrial effluent before discharge to environmental stream. In this regard Pongamiapinnata tree bark is proven to be an effective and promising adsorbent. Removal of copper ion from aqueous andindustrial waste water depends on pH, concentration of metal ion, concentration of adsorbent, contact time andagitation. Equilibrium adsorption data was tested for the Langmuir, Freundlich and Tempkin equations. Adsorptionisotherm studies indicated that Langmuir model fits better for the present case. Adsorption kinetics data were modeledusing the pseudo-first, pseudo-second order, Elovich and intra particle diffusion models. Adsorption data was bestsuited by second order model. Hence, this adsorbent has a potential to be used in the industries emitting copper ions inits effluent.
关键词：Adsorption; copper ion; Pongamia pinnata tree bark; adsorption isotherms; kinetic models