化工进展 ›› 2021, Vol. 40 ›› Issue (11): 5894-5906.DOI: 10.16085/j.issn.1000-6613.2020-2227

• 化工过程与装备 • 上一篇    下一篇

正渗透-膜蒸馏耦合工艺在高难度废水处理中的应用研究进展

朱腾义(), 曹再植   

  1. 扬州大学环境科学与工程学院,江苏 扬州 225127
  • 收稿日期:2020-11-09 修回日期:2021-01-21 出版日期:2021-11-05 发布日期:2021-11-19
  • 通讯作者: 朱腾义
  • 作者简介:朱腾义(1984—),男,博士,副教授,研究方向为水处理技术。E-mail:tyzhu@yzu.edu.cn
  • 基金资助:
    国家自然科学基金(42077331)

Application research progress of forward osmosis-membrane distillation coupling process in the treatment of highly difficult wastewater

ZHU Tengyi(), CAO Zaizhi   

  1. College of Environmental Science and Engineering, Yangzhou University, Yangzhou 225127, Jiangsu, China
  • Received:2020-11-09 Revised:2021-01-21 Online:2021-11-05 Published:2021-11-19
  • Contact: ZHU Tengyi

摘要:

正渗透-膜蒸馏(FO-MD)耦合工艺作为一种新型膜分离工艺技术,具有工艺设备简单、处理效率高、无二次污染等特点,包含两个高截留率的膜过程,可实现废水的双阻隔处理,从而提高对有机物、油类物质、表面活性剂等污染物的去除率,在高难度废水处理方面具有良好的应用前景。本文综合分析了FO-MD耦合技术的工作原理及工艺特点,指出该工艺未来的研究方向是通过高性能膜材料的开发及处理过程的优化来提高工艺的处理效率并节约处理成本。重点介绍了FO-MD耦合工艺处理高浓度有机废水、高浓度氨氮废水和含油高盐废水等高难度废水的最新进展,探讨了FO-MD耦合工艺亟待研究和解决的问题,总结出FO-MD耦合工艺几个未来发展的方向,为该工艺技术的进一步发展提供参考。

关键词: 正渗透, 膜蒸馏, 优化, 高难度废水, 水处理应用

Abstract:

The forward osmosis-membrane distillation (FO-MD) coupling process, as a new type of membrane separation process technology, has the characteristics of simple process equipment, high treatment efficiency, and no secondary pollution. The coupling process includes two membrane processes with high rejection rates. It can realize double barrier treatment of wastewater, thereby improving the removal efficiency of organic pollutants, oily substances, surfactants and other pollutants, and has a good application prospect in the treatment of difficult wastewater. In this paper, the working principle and process characteristics of the FO-MD coupling technology were comprehensively analyzes. The future research directions of the process were pointed out that is to improve the processing efficiency and save the processing cost through the development of high-performance membrane materials and the optimization of the processing process. The latest application of FO-MD coupling process in the treatment of high concentration organic wastewater, high concentration ammonia nitrogen wastewater and oil and high salt wastewater were introduced, and the problems to be solved in FO-MD coupling process were discussed. Several future development directions of FO-MD coupling process were summarized, which can provide reference for the further development of this technology.

Key words: forward osmosis, membrane distillation, optimization, highly difficult wastewater, water treatment applications

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