Combined Cavitation and Plasma in Water and Wastewater RemediationA Review
Pengyun Liu, Subramaniam Chidambaranathapillai, Zhilin Wu, Giancarlo Cravotto
TL;DR
This review explores how combining cavitation and plasma technologies can effectively treat water and wastewater with minimal additives and fast results.
Contribution
The paper provides a comprehensive review of hybrid cavitation/plasma processes and their mechanisms for water remediation.
Findings
Combined cavitation/plasma systems show synergistic effects in degrading pollutants and generating reactive species.
These hybrid technologies are effective for environmental water remediation while maintaining biocell integrity.
The review highlights the environmental impacts and future directions for these advanced oxidation processes.
Abstract
As novel advanced oxidation processes, combined hydrodynamic cavitation (HC)/plasma and ultrasonic cavitation (UC)/plasma provide distinctive benefits for wastewater treatments, such as being minimal or free of additional additives, relevant fast processes with satisfactory outcomes, and maintaining biocell integrity while avoiding cytotoxin release, prolonged oxidation. A comprehensive review of hybrid processes is essential to recognizing the recent advances in this field, to improving awareness of the related mechanisms, and to guiding future work. Herein, this review presents the mechanisms, synergistic effects, the application, and the impact of critical factors of cavitation/plasma. Furthermore, environmental impacts are stated, and future perspectives are also recommended. Synergism occurred in both degradation and reactive species generation, indicating that cavitation/plasma…
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Taxonomy
TopicsUltrasound and Cavitation Phenomena · Plasma Applications and Diagnostics · Advanced oxidation water treatment