期刊
JOURNAL OF ENVIRONMENTAL MANAGEMENT
卷 316, 期 -, 页码 -出版社
ACADEMIC PRESS LTD- ELSEVIER SCIENCE LTD
DOI: 10.1016/j.jenvman.2022.115295
关键词
Advanced oxidation process; Contaminants of emerging concern; Emerging technologies; Mineralization; Process scale-up; Reaction mechanism
资金
- Department of Science and Technology, Government of India [DST/TMD (EWO) /OWUIS-2018/RS-10]
- CSIR-Central Leather Research Institute [A/2022/EED/DST/1683]
Advanced oxidation processes (AOPs) are promising technologies for the treatment of contaminants of emerging concern by utilizing highly reactive radicals. Among the evaluated technologies, modified electrochemical oxidation, gamma radiation, and plasma-assisted systems have shown the greatest potential for successful implementation in wastewater treatment.
Advanced oxidation processes (AOPs) are promising technologies for partial or complete mineralization of contaminants of emerging concern by highly reactive hydroxyl, hydroperoxyl, superoxide, and sulphate radicals. Detailed investigations and reviews have been reported for conventional AOP systems that have been installed in full-scale wastewater treatment plants. However, recent efforts have focused on the peroxymonosulphate, per-sulphate, catalytic ozonation, ultrasonication and hydrodynamic cavitation, gamma radiation, electrochemical oxidation, modified Fenton, and plasma-assisted AOPs. This critical review presents the detailed mechanisms of emerging AOP technologies, their performance for treatment of contaminants of emerging concern, the relative advantages and disadvantages of each technology, and the remaining challenges to scale-up and implementation. Among the evaluated technologies, the modified electrochemical oxidation, gamma radiation, and plasma-assisted systems demonstrated the greatest potential for successful and sustainable implementation in waste-water treatment due to their environmental safety, compatibility, and efficient transformation of contaminants of emerging concern by a variety of reactive species. The other emerging AOP systems were also promising, but additional scale-up trials and a deeper understanding of their reaction kinetics in complex wastewater matrices are necessary to determine the technical and economic feasibility of full-scale processes.
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