工业水处理 ›› 2011, Vol. 31 ›› Issue (9): 38-41. doi: 10.11894/1005-829x.2011.31(9).38

• 试验研究 • 上一篇    下一篇

O-羧甲基壳聚糖的微波相转移催化合成及对废水Cr(Ⅵ)的吸附

张荣莉   

  1. 安徽工程大学生物与化学工程学院, 安徽芜湖 241000
  • 收稿日期:2011-07-21 修回日期:2011-07-21 出版日期:2011-09-20 发布日期:2011-09-29
  • 作者简介:张荣莉(1977- ),2003 年毕业于陕西科技大学,硕士,讲师。电话:13955369325,E-mail:ZRL326@163.com。
  • 基金资助:

    安徽省高等学校青年教师科研资助计划项目(2009SQRZ096)

Synthesis of the microwave irradiation and phase transfer catalysis of Ocarboxymethyl chitosan and its adsorption of the Cr(Ⅵ) in wastewater

Zhang Rongli   

  1. School of Biological and Chemical Engineering, Anhui Polytechnic University, Wuhu 241000, China
  • Received:2011-07-21 Revised:2011-07-21 Online:2011-09-20 Published:2011-09-29

摘要:

以壳聚糖为原料结合微波辐射与相转移催化技术合成出取代度为92.3%的O-羧甲基壳聚糖,并用其吸附制革废水中的Cr(Ⅵ),吸附率可达98.2%以上。探讨了O-羧甲基壳聚糖的投加量、废水pH及吸附时间对吸附性能的影响,确定了O-羧甲基壳聚糖处理制革废水的最佳实验条件。

关键词: O-羧甲基壳聚糖, 微波辐射, 相转移催化, Cr(Ⅵ)

Abstract:

Chitosan has been used as raw material,combining with microwave irradiation and phase transfer catalysis processes for synthesizing O-carboxymethyl chitosan,whose substitution value is 92.3%. O-carboxymethyl chitosan can be used for adsorbing the Cr(Ⅵ) in tannery wastewater,and its adsorption rate can be as high as 98.2% or more. The effects of the dosage of the adsorbent,pH of tannery wastewater and adsorption time on adsorption capacity are discussed. The optimum experimental conditions of treating tannery wastewater are obtained.

Key words: O-carboxymethyl chitosan, microwave irradiation, phase transfer catalysis;Cr(Ⅵ)

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