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Sep 19 – 22, 2023
IAEA Headquarters
Europe/Vienna timezone
Deadline for regular contributions has passed. The system remains open for invited submissions only.

Removal of Dye Contaminates in Water by a Plasma Liquid Interface

Sep 19, 2023, 4:30 PM
15m
CR-4 (IAEA Headquarters)

CR-4

IAEA Headquarters

Contributed Oral Water Treatment Water Treatment

Speaker

Duc Ba Nguyen (Duy Tan University)

Description

A promising approach for removing methylene blue (MB) in wastewater is the plasma liquid interface (PLI). Indeed, PLI can destroy contaminants at room temperature without adding chemicals due to PLI's ability to provide abundant environmental oxidation at the interface, including OH, O, H2O2, radicals, excited species, electrons, and ions. Herein, the removal of MB in water was investigated by PLI. The PLI was created by a cold plasma jet generated by a gliding arc plasma, and its plasma interreacted with a solution, a concentration from 5 to 20 mg/L. The experimental results indicated that the MB in the solution was entirely removed under adequate time interaction by reactive LPI, which depended on initial MB concentration and experimental conditions such as stirring and injection of oxygen. After a reasonable time, interaction, the solution was examined by FTIR and GC-MS to identify intermediate compounds during PLI in order to suggest a PLI mechanism for MB removal. As a result, feasible reaction pathways for MB removal by PLI will be present, along with recommendations for future research advancements.

Speaker's Affiliation Plasma Science and Application
Member State or IGO/NGO IGO/NGO

Primary authors

Mr Duc Trung Vo (Hochiminh City University of Natural Resources and Environment) Prof. Nga Thi Dinh (Hochiminh City University of Natural Resources and Environment) Duc Ba Nguyen (Duy Tan University)

Co-author

Ms Thanh Tu Le (Plasma Science and Application)

Presentation materials