CIESC Journal ›› 2015, Vol. 66 ›› Issue (9): 3341-3349.DOI: 10.11949/j.issn.0438-1157.20150770

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Research progress on deep treatment and reclamation of coal gasification wastewater

ZHANG Runnan1,2, FAN Xiaochen1,2, HE Mingrui1,2, SU Yanlei1,2, JIANG Zhongyi1,2   

  1. 1 School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;
    2 Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
  • Received:2015-06-01 Revised:2015-06-08 Online:2015-09-05 Published:2015-09-05
  • Supported by:

    supported by the National Science Fund for Distinguished Young Scholars (21125627) and the Natural Science Foundation of Tianjin (14JCZDJC37400, 13JCYBJC20500).

煤气化废水深度处理与回用研究进展

张润楠1,2, 范晓晨1,2, 贺明睿1,2, 苏延磊1,2, 姜忠义1,2   

  1. 1 天津大学化工学院, 天津 300072;
    2 天津化学化工协同创新中心, 天津 300072
  • 通讯作者: 姜忠义
  • 基金资助:

    国家杰出青年科学基金项目(21125627);天津市自然科学基金项目(14JCZDJC37400,13JCYBJC20500)。

Abstract:

The treatment of coal gasification wastewater is difficult because of its complex composition and many contaminants with high concentrations, such as oils, phenols and NH3-N. In this paper, the compositions and characteristics of the wastewater from coal gasification were analyzed and the feasibility of recent technologies for the deep treatment and reclamation of it were reviewed. Aiming to overcome the shortcomings of different technologies and to obtain high water recovery, the feasibility of multi-membrane technologies (ultrafiltration, nanofiltration, reverse osmosis, electrodialysis) for treating it deeply was specially discussed. At last, an outlook on the development trends of the technologies for the deep treatment and reclamation of coal gasification wastewater was given.

Key words: coal gasification wastewater, deep treatment, reclamation, multi-membrane technology, recovery

摘要:

煤气化废水水质复杂,污染物浓度高,处理难度大。分析了煤气化废水的组成及特点,概述了煤气化废水深度处理与回用的工艺现状。针对不同工艺存在的问题,以提高水回收率为重点,探讨了多膜工艺(超滤、纳滤、反渗透、电渗析)深度处理煤气化废水的可行性,展望了煤气化废水深度处理与资源化利用工艺的发展方向。

关键词: 煤气化废水, 深度处理, 回用, 多膜工艺, 回收率

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