期刊
WATER RESEARCH
卷 229, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.watres.2022.119479
关键词
Dissolved organic matter; Fenton; OH; Humic substances; Trace contaminants; Fenton -like technology
This study provides comprehensive insights into the degradation mechanisms of dissolved organic matter by the Fenton process, including the effects of different types of substances and the interference of humus and organic acids. Furthermore, a comparison of the economic feasibility of CF and three Fenton-like technologies is conducted, offering reference for engineering applications. Lastly, possible future research directions are suggested.
Fenton process has become a research hotspot due to the nonselective and efficient degradation of dissolved organic matter (DOM) by center dot OH. However, there are still many challenges and bottlenecks for conventional Fenton (CF). This study provides the first comprehensive insight into the mechanisms of DOM degradation by the Fenton process, including the various subcategories of humic substances, emerging trace contaminants, including persistent organic pollutants, endocrine disrupting chemicals, and pharmaceuticals and personal care products, and the interference of humus and low molecular weight organic acids on the removal of trace contaminants. In addition, a statistical comparison of the economics of CF and three types of Fenton-like technologies (PhotoFenton, Electro-Fenton, and Ultrasonic-Fenton) is conducted based on existing studies, which can be used as a reference for engineering applications. Moreover, a brief overview of the categories and characteristics of heterogeneous Fenton, which have been extensively studied in recent years, and a comparison of their catalysts are presented. In the end, the paper advances a possible future research direction.
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