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Environmentally friendly technology for treatment of pesticide and ammonia contaminated water with electrochemical plasma

Authors :
null Nguyen Duc Hung
null Tran Van Cong
null Do Le Thanh Hung
null Tran Thi Ngoc Dung
Source :
Vietnam Journal of Science and Technology. 61:382-393
Publication Year :
2023
Publisher :
Publishing House for Science and Technology, Vietnam Academy of Science and Technology (Publications), 2023.

Abstract

Electrochemical plasma is formed by an electrochemical reaction with a high voltage direct current (DC) in a non-electrolyte solution such as distilled water to create a gaseous state on the electrodes. Under conditions of high voltage, strong electric field and suitable temperature rise due to the Joule-Lenz effect, an electrochemical plasma will appear and be noted by the glow on the electrode as well as the characteristic amperage of the reaction rate leading to a rapid increase in the electrochemical reaction. Plasma reactions produce substances with strong chemical reactivity such as H2, H2O2, or OH* free radicals, etc. in the aquatic environment. Electrochemical plasma formation can be controlled by technological parameters such as voltage, the distance between electrodes, conductivity, and the metallic nature of electrodes, etc. Using electrochemical plasma, it is possible to treat pollutants harmful to the aquatic environment such as 2,4-D; 2,4,5-T, and ammonia. In the process of treating polluted water by electrochemical plasma technology, chemicals and treatment materials are not used, so it is an environmentally friendly technology.

Details

ISSN :
28155874 and 25252518
Volume :
61
Database :
OpenAIRE
Journal :
Vietnam Journal of Science and Technology
Accession number :
edsair.doi...........e39dcb773cad0d9099815dc2a71bc0b3
Full Text :
https://doi.org/10.15625/2525-2518/17372