Adsorption characteristics of o-phthalic acid and its separation by resins from maleic acid and fumaric acid in wastewater

被引：0
|
作者：
Fei, ZH [1 ]
Wang, MJ
Chen, JL
Sun, Y
Li, AM
Zhang, QX
机构：
[1] Yancheung Teachers Coll, Jiangsu Provinicial Key Lab Coastal Wetland Biore, Jiangsu 224002, Peoples R China
[2] Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resources Reuse, Nanjing 210093, Peoples R China
[3] Zhejiang Tiandi Environm Protect Engn Co Ltd, Zhejiang 310005, Peoples R China
来源：
ADSORPTION SCIENCE & TECHNOLOGY | 2005年 / 23卷 / 01期
关键词：
D O I：
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中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A comparison was made of the adsorption properties towards o-phthalic acid of ND100 resin modified by oxygen groups and ND900 resin modified by amine groups. The work presented focused on various properties including adsorption under static equilibrium conditions, the adsorption thermodynamics and kinetics. In addition, a method was devised for the separation of o-phthalic acid from maleic acid and fumaric acid in wastewater. Two isotherm models (Langmuir and Freundlich) were used to fit the static adsorption results. Both equations fitted the experimental data perfectly. The kinetic results led to the conclusion that the adsorption of o-phthalic acid onto ND900 involved a type of chemical transition.
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页码：37 / 45
页数：9
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