期刊
APPLIED SCIENCES-BASEL
卷 13, 期 23, 页码 -出版社
MDPI
DOI: 10.3390/app132312631
关键词
atmospheric pressure plasma; wastewater purification; degradation; organic contaminants
This paper discusses the application of atmospheric pressure plasma (APP) in wastewater purification and summarizes the effects of discharge parameters on degradation efficiency. The existing challenges and future prospects of plasma-based wastewater purification are also outlined.
Owing to current global water scarcity, there is an urgent need for advanced water treatment technologies to be invested in wastewater treatment processes. Additionally, there is growing concern that some anthropogenic contaminants have been detected in finished drinking water and wastewater slated for reuse, such as organic chemicals, pharmaceuticals, industrial dyes and even viruses, and their health effects are poorly understood at low concentrations. Atmospheric pressure plasma (APP) is a kind of advanced oxidation technology with high efficiency, low energy consumption, and little environmental impact. In recent decades, as a new method of environmental pollution abatement, APP has proven able to decompose and even completely eliminate stubborn organic contaminants. This paper focuses on the application of different types of plasma in the wastewater purification, such as water containing perfluorinated compounds, pesticides, pharmaceuticals, dyes, phenols, and viruses. Then, the effects of discharge parameters (discharge power, electrode distance, gas flow rate and working gas composition) on degradation efficiency were summarized. Finally, the existing challenges and future prospects of plasma-based wastewater purification are outlined.
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