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高分子重金属螯合剂PATD的制备及其去除Cu2+、Ni2+性能

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刘志勤, 陈锋. 高分子重金属螯合剂PATD的制备及其去除Cu2+、Ni2+性能[J]. 环境工程学报, 2015, 9(10): 4724-4730. doi: 10.12030/j.cjee.20151017
引用本文: 刘志勤, 陈锋. 高分子重金属螯合剂PATD的制备及其去除Cu2+、Ni2+性能[J]. 环境工程学报, 2015, 9(10): 4724-4730. doi: 10.12030/j.cjee.20151017
shu
Liu Zhiqin, Chen Feng. Preparation of polymeric heavy metal chelator PATD and its performance for Cu2+ and Ni2+ removal[J]. Chinese Journal of Environmental Engineering, 2015, 9(10): 4724-4730. doi: 10.12030/j.cjee.20151017
Citation: Liu Zhiqin, Chen Feng. Preparation of polymeric heavy metal chelator PATD and its performance for Cu2+ and Ni2+ removal[J]. Chinese Journal of Environmental Engineering, 2015, 9(10): 4724-4730. doi: 10.12030/j.cjee.20151017
shu

高分子重金属螯合剂PATD的制备及其去除Cu2+、Ni2+性能

  • 1.

    华东理工大学精细化工研究所, 结构可控先进功能材料及其制备教育部重点实验室, 上海 200237

  • 基金项目:

    国家自然科学基金资助项目(21177039)

  • 中图分类号: X703.5

Preparation of polymeric heavy metal chelator PATD and its performance for Cu2+ and Ni2+ removal

  • 1.

    Key Laboratory for Advanced Materials, Ministry of Education and Institute of Fine Chemicals, East China University of Science and Technology, Shanghai 200237, China

  • Fund Project:

  • 摘要: 以丙烯酸,四乙烯五胺,二硫化碳和氢氧化钠为原料合成了一种二硫代氨基甲酸盐类高分子重金属螯合剂,PATD,采用红外光谱对其结构进行了表征。研究了PATD的投加量、体系pH对Cu2+和Ni2+模拟废水的处理效果的影响。结果表明,PATD高分子重金属螯合剂处理浓度为50 mg/L的Cu2+和Ni2+模拟重金属废水时,当PATD/重金属离子质量比分别大于6(Cu2+)和12(Ni2+)时,处理后废水中残留的重金属离子浓度均低于国家污水综合排放一级标准。PATD在较宽pH范围内均可有效去除重金属Cu2+和Ni2+离子;对Cu2+的去除效果要好于Ni2+。对低浓度(1.0 mg/L)的Cu2+和Ni2+废水的处理同样具有很好的效果。
    Abstract: A dithiocarbamate polymeric heavy metal chelator,PATD,was prepared from acrylic acid,tetraethylenepentamine,carbon disulfide and sodium hydroxide,and characterized by FTIR spectra.Effects of PATD dosage and solution pH value on the removal efficiencies of Cu2+ and Ni2+ simulated wastewaters were studied.For the simulated heavy metal wastewater containing 50 mg/L Cu2+ or Ni2+ ion,the residual concentrations of heavy metal ion were lower than the national standard for wastewater discharge of China after the treatment of PATD polymeric chelator with PATD/heavy metal ion mass ratios higher than 6 (Cu2+) and 12 (Ni2+),respectively.PATD can effectively remove the heavy metal Cu2+ and Ni2+ ions in a wide pH range and more significantly for the removal of Cu2+ than that of Ni2+.PATD treatment also shows good efficiency in dealing with Cu2+ and Ni2+ wastewaters with very low concentration (1.0 mg/L).
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  • 收稿日期:  2014-08-27
  • 刊出日期:  2015-10-14

高分子重金属螯合剂PATD的制备及其去除Cu2+、Ni2+性能

  • 1. 华东理工大学精细化工研究所, 结构可控先进功能材料及其制备教育部重点实验室, 上海 200237
  • 收稿日期:  2014-08-27
基金项目:

国家自然科学基金资助项目(21177039)

摘要: 以丙烯酸,四乙烯五胺,二硫化碳和氢氧化钠为原料合成了一种二硫代氨基甲酸盐类高分子重金属螯合剂,PATD,采用红外光谱对其结构进行了表征。研究了PATD的投加量、体系pH对Cu2+和Ni2+模拟废水的处理效果的影响。结果表明,PATD高分子重金属螯合剂处理浓度为50 mg/L的Cu2+和Ni2+模拟重金属废水时,当PATD/重金属离子质量比分别大于6(Cu2+)和12(Ni2+)时,处理后废水中残留的重金属离子浓度均低于国家污水综合排放一级标准。PATD在较宽pH范围内均可有效去除重金属Cu2+和Ni2+离子;对Cu2+的去除效果要好于Ni2+。对低浓度(1.0 mg/L)的Cu2+和Ni2+废水的处理同样具有很好的效果。

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