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第 36 卷第 1 期 精 细 化 工 Vol.36, No.1
201 9 年 1 月 FINE CHEMICALS Jan. 2019

水处理技术与环境保护
壳聚糖衍生物用于市政废水阻垢

郑玉轩 1,2 ，高玉华 2,3 ，张利辉 2,3 ，刘振法 2,3*

（1. 河北工业大学 化工学院，天津 300130；2. 河北省科学院能源研究所，河北 石家庄 050081；3. 河
北省工业节水工程技术研究中心，河北 石家庄 050081）

摘要：以壳聚糖（CTS）、丙烯酸（AA）为单体，以过硫酸铵（APS）为引发剂，在体积分数为 2%的冰醋酸水
溶液中共聚，制备了 N-羧乙基化壳聚糖（CEC）。采用红外光谱、核磁共振光谱等对壳聚糖衍生物 CEC 进行了
表征。以阻垢性能为评判标准，通过单因素实验筛选出 CEC 的最佳合成条件为：m（AA）∶m（CTS）=5.30∶
3.00，反应温度为 75 ℃，反应时间为 4 h，引发剂 APS 用量为 3%（以单体总质量为基准，下同）。考察了 CEC
用于二级市政废水中的阻垢性能，结果表明，在经过二级处理的市政废水中，CEC 阻 CaCO 3 垢性能优异，当
CEC 的加药量为 30 mg/L 时，对 CaCO 3 的阻垢率可达 92.93%，明显优于市售阻垢剂羟基乙叉二膦酸（HEDP）。
通过 SEM、XRD 对 CEC 阻 CaCO 3 机理进行了初步探究，结果表明，CEC 对 CaCO 3 的作用机理主要是晶格畸
变作用。
关键词：市政废水回用；N-羧乙基化壳聚糖；阻垢性能；阻垢机理；水处理技术
中图分类号：TQ085 文献标识码：A 文章编号：1003-5214 (2019) 01-0149-08

Scale Inhibition Performance of a Chitosan
Derivative for Municipal Wastewater

1,2
2,3
2,3
ZHENG Yu-xuan , GAO Yu-hua , ZHANG Li-hui , LIU Zhen-fa 2,3*
（1. School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300130, China; 2. Institute
of Energy Sources, Hebei Academy of Sciences, Shijiazhuang 050081, Hebei, China; 3. Hebei Engineering Research
Center for Water Saving in Industry, Shijiazhuang 050081, Hebei, China）
Abstract: A new N-carboxylated chitosan (CEC) was synthesized by copolymerization of chitosan (CTS)
and acrylic acid (AA) using ammonium persulfate (APS) as initiator in the presence of 2% (volume
1
fraction) glacial acetic acid solution. The product was characterized by FTIR and HNMR. According to
scale inhibition performance, the synthesis conditions for CEC were optimized by single factor experiment.
The optimal conditions were obtained as followed: the mass ratio of AA to CTS was 5.30∶3.00, the
reaction temperature was 75 ℃ , the reaction time was 4 h and the dosage of APS was 3%(based on the
total mass of monomer,as the below). Then, the scale inhibition performance of CEC for secondary
municipal wastewater treatment was studied. The results presented that the synthetic CEC exhibited
excellent inhibition performance to CaCO 3 and the scale inhibition rate could reach 92.93% in the
presence of 30 mg/L of CEC, which was significantly better than commercially available scale inhibitor
1-hydroxyethylidene-1, 1-diphosphonic acid (HEDP). The mechanism of CEC inhibiting CaCO 3 was
investigated by SEM and XRD. The results revealed that the mechanism of CEC on CaCO 3 was mainly
caused by lattice distortion.
Key words: municipal wastewater reuse; N-carboxyethyl chitosan; scale inhibition performance; scale
inhibition mechanism; water treatment technology
Foundation items: National Natural Science Foundation of China (21376062); Science and Technology
Plan Project of Hebei Province (17393604D); Fundamental Research Project of Hebei Province (18964005D)

收稿日期：2018-05-18; 定用日期：2018-09-10; DOI: 10.13550/j.jxhg.20180364
基金项目：国家自然科学基金项目（21376062）；河北省科技计划项目（17393604D）；河北省基础研究计划项目（18964005D）
作者简介：郑玉轩（1991—），男，硕士生。联系人：刘振法（1963—），男，研究员，博士生导师，E-mail：lzf63@sohu.com。