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Effect of negative ions on decomposition of acetic acid in water using DC corona discharge
Author(s) -
Kawabata Yuito,
Shindo Masako,
Miichi Tomoaki
Publication year - 2021
Publication title -
electrical engineering in japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.136
H-Index - 28
eISSN - 1520-6416
pISSN - 0424-7760
DOI - 10.1002/eej.23338
Subject(s) - acetic acid , corona discharge , ozone , hydrogen peroxide , corona (planetary geology) , ion , decomposition , hydrogen , oxygen , chemistry , materials science , analytical chemistry (journal) , chemical engineering , environmental chemistry , electrode , organic chemistry , physics , engineering , astrobiology , venus
This study investigates the characteristics of acetic acid decomposition on a negative DC corona discharge over water. The corona discharge is 4 mm away from the water surface. Furthermore, this study explores the mechanisms involved in the chemical reactions of active species during water treatment, using discharged plasma. During processing, oxygen or ozone is supplied to the reactor. The results of experiment and simulation show the same trend on time variation of acetic acid concentration. Therefore, the simulation model that considers the supply of ozone, hydrogen peroxide, andO 3 − can confirm the change in acetic acid concentration. Our results indicate that negative ions such asO 3 − can be used for water treatment by DC corona discharge.