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Title: Ultrasound-assisted enhanced electroxidation for mineralization of persistent organic pollutants: A review of electrodes, reactor configurations and kinetics
Authors: Patidar R.
Srivastava, Vimal Chandra
Published in: Critical Reviews in Environmental Science and Technology
Abstract: Discharge of toxic and hazardous pollutants in the aquatic bodies is dangerous for the human being and aquatic life. Nowadays, novel methods need to be developed to increase the treatment efficiency of such types of pollutants. Among the electrochemical technologies, electroxidation coupled with power ultrasound, so-called sonoelectroxidation, has gained attention because of its ability to remove a wide range of ubiquitous pollutants. The use of power ultrasound, in combination with electroxidation, provides the synergistic effect by virtue of chemical and physical effect of ultrasound for degradation of compounds. This review presents a critical analysis of studies (1996–2020) on the treatment of various synthetic and real wastewater using the sonoelectroxidation process. An overview of current advancement in electrode material and reactor geometry has been deliberated. Coupling these two techniques increased the mineralization degree in a remarkable way. This review critically evaluates various types (batch and continuous) of sonoelectro reactors used in the sonoelectrochemical process. Kinetics of the degradation process has been reviewed in detail. Challenges associated with these technologies and sluggish development in reactor geometries have been identified with the foremost application in wastewater treatment. © 2020 Taylor & Francis Group, LLC.
Citation: Critical Reviews in Environmental Science and Technology, 51(15): 1667-1701
Issue Date: 2021
Publisher: Bellwether Publishing, Ltd.
Keywords: Cavitation
hydroxyl radicals
reactive oxygen species
ISSN: 10643389
Author Scopus IDs: 42262496600
Author Affiliations: Patidar, R., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, India
Srivastava, V.C., Department of Chemical Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, India
Funding Details: One of the authors (Ritesh Patidar) acknowledges to quality improvement program supported by All India Council for Technical Education (AICTE), Government of India, for providing the scholarship for pursuing this research at the Indian Institute of Technology Roorkee. All India Council for Technical Education, अभातशिप
Corresponding Author: Srivastava, V.C.; Department of Chemical Engineering, India
Appears in Collections:Journal Publications [CH]

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