Department of Chemical Engineering, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi, 110016, India.
Department of Chemical Engineering, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi, 110016, India.
J Environ Manage. 2018 Dec 15;228:169-188. doi: 10.1016/j.jenvman.2018.09.003. Epub 2018 Sep 13.
The tremendous increase of industrialization and urbanization worldwide causes the depletion of natural resources such as water and air which urges the necessity to follow the environmental sustainability across the globe. This requires eco-friendly and economical technologies for depollution of wastewater and gases or zero emission approach. Therefore, in this context the treatment and reuse of wastewater is an environmental friendly approach due to shortage of fresh water. Catalytic wet air oxidation (CWAO) is a promising technology for the treatment of toxic and non-biodegradable organic pollutants in the wastewater generated from various industries. Various heterogeneous catalysts have been extensively used for treatment of various model pollutants such as phenols, carboxylic acids, nitrogenous compounds and different types of industrial effluents. The present review focuses on the literature published on the performances of various noble and non-noble metal catalysts for the treatment of various pollutants by CWAO. Reports on biodegradability enhancement of industrial wastewater containing toxic contaminants by CWAO are reviewed. Detailed discussion is made on catalyst deactivation and their mitigation study and also on the various factors which affects the CWAO reaction.
随着世界范围内工业化和城市化的迅猛发展，自然资源（如水和空气）日益枯竭，这促使我们必须在全球范围内追求环境可持续性。这就需要采用环保且经济的废水和废气净化技术或零排放方法。因此，在这种情况下，由于淡水资源短缺，处理和再利用废水是一种环保的方法。湿式催化空气氧化（CWAO）是一种很有前途的技术，可用于处理来自各种工业的废水所产生的有毒和难生物降解的有机污染物。已经广泛使用各种多相催化剂来处理各种模型污染物，如酚类、羧酸、含氮化合物和不同类型的工业废水。本综述重点介绍了关于各种贵金属和非贵金属催化剂在 CWAO 中处理各种污染物的性能的文献。还回顾了通过 CWAO 提高含有有毒污染物的工业废水可生物降解性的报告。详细讨论了催化剂失活及其缓解研究，以及影响 CWAO 反应的各种因素。
