| 两性壳聚糖的制备及其处理磷化废水的研究 |
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| 引用本文： | 冒爱荣,刘勇,许琦,蔡照胜,仓辉,郁桂云.两性壳聚糖的制备及其处理磷化废水的研究[J].电镀与精饰,2012,34(9):43-46. |
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| 作者姓名： | 冒爱荣 刘勇 许琦 蔡照胜 仓辉 郁桂云 |
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| 作者单位： | 盐城工学院化学与生物工程学院,江苏盐城,224051 |
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| 基金项目： | 江苏省新型环保重点实验室开放课题，盐城工学院大学生实践创新训练项目 |
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| 摘 要： | 以壳聚糖、3-氯-2-羟丙基三甲基氯化铵、氯乙酸为原料,制备了两性壳聚糖。以两性壳聚糖为吸附剂,处理磷化废水。通过单因素实验考察了pH、吸附剂用量、吸附时间和温度等因素对吸附效果的影响,对吸附机理进行了初探。结果表明,室温下最佳吸附工艺条件pH为2.0,ρ(吸附剂)为12.0g/L,吸附t为2.0h。此条件下,两性壳聚糖对磷化废水中锌离子和磷酸根的去除率分别达到78.9%和88.2%。
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| 关 键 词： | 两性壳聚糖 吸附 磷化废水 |
Preparation and Application of Amphoteric Chitosan in Treatment of Phosphating Wastewater |
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| MAO Ai-rong
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LIU Yong
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XU Qi
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CAI Zhao-sheng
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CANG Hui
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YU Gui-yun.Preparation and Application of Amphoteric Chitosan in Treatment of Phosphating Wastewater[J].Plating & Finishing,2012,34(9):43-46. |
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| Authors: | MAO Ai-rong LIU Yong XU Qi CAI Zhao-sheng CANG Hui YU Gui-yun |
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| Affiliation: | (Dept.of Chemistry and Bio-Engineering,Yancheng Institute of Technology,Yancheng 224051,China) |
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| Abstract: | Amphoteric chitosan was prepared by using chitosan,3-chloro-2-hydroxypropyl trimethyl ammonium chloride(CTA) and chloroacetic acid.And the prepared amphoteric chitosan was applied as adsorbent in treatment of phosphating wastewater.Effects of pH value,adsorbent dosage,adsorption time and temperature on the adsorption efficiency were investigated by single-factor experiments,and mechanism of the adsorption was also proposed.Results showed that at room temperature the optimum adsorption conditions were pH value of 2.0,adsorbent dosage of 12.0 g/L,adsorption time of 2.0 h.Under these conditions,removal rates of the amphoteric chitosan for zinc ion and phosphate in phosphating wastewater could up to 78.9% and 88.2% separately. |
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| Keywords: | amphoteric chitosan adsorption phosphating wastewater |
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