中华医学超声杂志

应用化学 ›› 2009, Vol. 26 ›› Issue (11): 1336-1340.

• 研究论文 • 上一篇    下一篇

阴阳离子双隔膜三室电解槽电渗析处理垃圾渗滤液

陈日耀1,陈震1,2*,耿亚敏1,郑曦1,陈晓1   

  1. (1.福建师范大学化学与材料学院 福州 350007;2.宁德师范高等专科学校化学系 宁德 352100)
  • 收稿日期:2008-10-09 修回日期:2009-06-09 出版日期:2009-11-10 发布日期:2009-11-10
  • 通讯作者: 陈震，男，博士，研究员，博士生导师; E-mail:zc1224@pub1.fz.fj.cn; 研究方向：应用电化学及环境科学
  • 基金资助:
    福建省自然科学基金（D0710009）福建省教育厅（JB06069,JB05314）资助项目

Treatment of Landfill Leachates by Electrodialysis in Three-chamber Cell Divided by Two Membranes

CHEN Ri-Yao1, CHEN Zhen1,2*, GENG Ya-Min1, ZHENG Xi1, CHEN Xiao1   

  1. (1.College of Chemistry and Materials Science,Fujian Normal University,Fuzhou 350007;
    2.Chemistry Department,Fujian Ningde Teachers College,Ningde 352100)
  • Received:2008-10-09 Revised:2009-06-09 Published:2009-11-10 Online:2009-11-10
  • Supported by:

    Fujian Provincial Natural Science Foundtion

PDF

1282

被引次数

20 | 4

摘要：

采用阴阳离子双隔膜三室电解槽，将电渗析技术与Ｆｅｎｔｏｎ试剂法结合，去除垃圾渗滤液中氨氮和ＣＯＤＣｒ。垃圾渗滤液中的氨氮通过电渗析技术富集到阴极液中，随后用化学沉淀法加以去除。同时，在铁阳极上生成的Ｆｅ２＋离子，与滴加入阳极液中的Ｈ２Ｏ２反应生成Ｆｅｎｔｏｎ试剂，降解有机物，降低ＣＯＤＣｒ。实验结果表明，模拟废水中的氨氮透过率达８０％，垃圾渗滤液中氨氮浓度和ＣＯＤＣｒ由原来的１９８２和２２４８ ｍｇ／Ｌ分别降至２００和１２７ ｍｇ／Ｌ。

关键词: 垃圾渗滤液, 电渗析, Fenton 试剂

Abstract:

Electrodialysis and Fenton reagent method were combined to decrease the concentration of NH4+-N and CODCr in landfill leachates by means of coupling membrane triple chamber cell. NH4+-N in landfill leachates was enriched in catholyte by electrodialysis, then removed by  chemical precipitation. In the meantime, Fe2+ was generated at the Fe anode.  H2O2 was dropped into the anolyte to produce Fenton reagent, which could degrade organic compounds and decrease the concentration of CODCr. The experimental results show that the removal rate of NH4+-N in simulated wastewater was up to 80% , and the concentrations of NH4+-N and CODCr in the landfill leachates were decreased from 1982 mg/L and 2248mg/L to 200mg/L and 127mg/L,respectively.

 

Key words: landfill leachates, electrodialysis, Fenton reagent

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