焦化废水脱色研究进展

焦化废水成分复杂,且各种有色物质相互作用,使得焦化废水的脱色成为一个难题。介绍了生物法、吸附法、絮凝法、化学氧化法及膜法在焦化废水脱色中的应用,叙述了各种方法的基本原理、操作条件、处理效果及优缺点,并在此基础上探讨了焦化废水脱色的发展趋势,指出对脱色机理的研究、发展高级氧化技术及多种技术联合使用是今后焦化废水脱色的研究方向。

Research progress of coking wastewater decolorization

Decolorization of coking wastewater is very difficult because of the complexity of its ingredients and the interaction of coloured substances. The application of processes such as biological process, adsorption process, flocculation process, chemical oxidation process and membrane process in coking wastewater decolorization were introduced. The basic principle, operation conditions, effect of the treatment, advantages and disadvantages of those processes were summarized, and then, the development tendency of coking wastewater decolorization was discuss-ed. It was pointed out that the research of coking wastewater decolorization should focus on decolorization mechanism investigation, development of advanced oxidation processes and combination application of different processes.