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改性壳聚糖絮凝剂的制备及絮凝性能的研究

Preparation of modified chitosan and its properties of flocculating

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【作者】 林静雯胡筱敏高丹马爽

【Author】 LIN Jing-wen~1,HU Xiao-ming~2, GAO Dan~1,MA Shuang~1(1.Shenyang Key Laboratory of Biology and Environment Engineering, Shenyang University, Shenyang 110044 China;2.College of Source & Civil Engineering ,Northeastern University,Shenyang 110004,China)

【机构】 沈阳大学沈阳环境工程重点实验室东北大学资源与土木工程学院沈阳大学沈阳环境工程重点实验室 辽宁沈阳110044辽宁沈阳110004辽宁沈阳110044辽宁沈阳110044

【摘要】 以过硫酸铵为引发剂,在壳聚糖与丙烯酰胺的质量比为1∶2的条件下,使壳聚糖和丙烯酰胺在30℃时发生接枝共聚反应,制得改性壳聚糖絮凝剂(CAM),通过对高岭土悬浮液和印染废水的絮凝实验表明,CAM具有阳离子型高分子絮凝剂的典型特征,其絮凝性能优于壳聚糖,在其用量为壳聚糖质量的20%情况下,CAM对印染废水的CODC r去除率提高了30%。

【Abstract】 The modified chitosan (CAM) was made by graft co-polymerization of chitosan and acrylamide using the ammonium persulfate as initiator and the mass ratio of chitosan and acrylamide is 1∶2,reaction temperature is (30℃).The results of flocculating experiments of CAM on kaolin suspension and dyeing waste water indicated that CAM has a typical character of cation high moleculer flocculation and better flocculating ability than chitosan . The removal rate of CODCr of dyeing waste water enhanced by 30% in flocculant’s adding quantity reduced by 80%.

【基金】 沈阳环境工程重点实验室基金资助(2004008)
  • 【文献出处】 南京工业大学学报(自然科学版) ,Journal of Nanjing University of Technology , 编辑部邮箱 ,2005年05期
  • 【分类号】X703
  • 【被引频次】34
  • 【下载频次】714
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