Removal of Cd2+ from Light-Polluted Water by Weak Base Epoxy Anion-Exchange Resin
Removal of Cd2+ from Light-Polluted Water by Weak Base Epoxy Anion-Exchange Resin
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弱碱性环氧阴离子交换树脂去除光污染水中Cd2
DOI：
10.4028/www.scientific.net/amr.518-523.2727
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发表时间：
2012-05
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本文研究了以弱碱性环氧阴离子交换树脂为吸附剂去除光污染水中痕量Cd2+的研究。进行了一系列实验来检查树脂用量、接触时间和共存离子的影响。本研究发现弱碱性环氧阴离子交换树脂可以有效去除高浓度碱金属和碱土金属的光污染水中的Cd2+。吸附等温线可以用朗缪尔等温线很好地描述。吸附过程遵循一级速率动力学。
This paper presents a study of the removal of trace Cd2+ from light-polluted water by using weak base epoxy anion-exchange resin as adsorbent. A series of experiments was conducted to examine the effects of resin dosage, contacting time and coexisting ions. In the present research, it was found that Cd2+ can be effectively removed from light-polluted water with high concentrations of alkaline and alkaline earth metals by weak base epoxy anion-exchange resin. The adsorption isotherm can be well described by Langmuir isotherm. The adsorption processes followed the first-order rate kinetics.