工业水处理 ›› 2019, Vol. 39 ›› Issue (10): 49-53. doi: 10.11894/iwt.2018-0823

• 试验研究 • 上一篇    下一篇

阳离子型接枝淀粉絮凝性能研究

李海花1,2(),高玉华1,2,张利辉1,2,李娜3,刘振法1,2,*()   

  1. 1. 河北省科学院能源研究所, 河北石家庄 050081
    2. 河北省工业节水工程技术研究中心, 河北石家庄 050081
    3. 河北桑沃特水处理有限责任公司, 河北石家庄 050081
  • 收稿日期:2019-06-27 出版日期:2019-10-20 发布日期:2019-10-29
  • 通讯作者: 刘振法 E-mail:873756647@qq.com;lzf63@sohu.com
  • 作者简介:李海花(1979-),博士,副研究员。电话:13784383035, E-mail:873756647@qq.com
  • 基金资助:
    国家自然科学基金项目(21376062);河北省基础研究计划项目(18964005D);石家庄市科学技术研究与发展计划项目(171071153A);河北省科学院科技计划项目(18701);河北省科学院科技计划项目(18704)

Research on flocculation property of cationic grafted starch

Haihua Li1,2(),Yuhua Gao1,2,Lihui Zhang1,2,Na Li3,Zhenfa Liu1,2,*()   

  1. 1. Institute of Energy Resources, Hebei Academy of Sciences, Shijiazhuang 050081, China
    2. Hebei Engineering Research Center for Water Saving in Industry, Shijiazhuang 050081, China
    3. Hebei Sunwater Water Treatment Co., Ltd., Shijiazhuang 050081, China
  • Received:2019-06-27 Online:2019-10-20 Published:2019-10-29
  • Contact: Zhenfa Liu E-mail:873756647@qq.com;lzf63@sohu.com
  • Supported by:
    国家自然科学基金项目(21376062);河北省基础研究计划项目(18964005D);石家庄市科学技术研究与发展计划项目(171071153A);河北省科学院科技计划项目(18701);河北省科学院科技计划项目(18704)

摘要:

以玉米淀粉和甲基丙烯酰氧乙基三甲基氯化铵(DMC)为原料,硝酸铈铵为引发剂,合成阳离子型接枝淀粉St-g-PDMC。通过正交实验对St-g-PDMC的合成条件进行了优化,并采用FTIR和SEM对产物的结构进行了表征。结果表明,St-g-PDMC的最佳合成条件:淀粉2 g,m(St):m(DMC)=1:1.25,引发剂质量0.6 g,反应温度60℃,反应时间5 h。在此条件下,合成的St-g-PDMC中氮为3.40%,接枝率101.8%。以质量分数为2%的高岭土悬浊液为模拟水样,研究了St-g-PDMC的絮凝性能。

关键词: 接枝淀粉, 絮凝剂, 絮凝性能

Abstract:

Cationic grafted starch St-g-PDMC was synthesized by using corn starch and methacryloxyethyl trimethyl ammonium chloride(DMC) as the raw materials and ceric ammonium nitrate as the initiator. The synthesis conditions were optimized by orthogonal experiments, and the structure of the product was characterized by FTIR and SEM, respectively. The results show that the optimum synthesis conditions are at the ratio of starch 2 g to m(St):m(DMC) of 1:1.25 with the initiator dosage of 0.6 under the reaction temperature of 60℃ for five hours. Under these conditions, the nitrogen content is 3.40%, and the grafted ratio of St-g-PDMC is 101.8%, respectively. The flocculation performance of St-g-PDMC was studied by kaolin suspension with a mass fraction of 2%.

Key words: grafted starch, flocculant, flocculation property

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