Enhanced decomposition of toxic pollutants by underwater pulsed discharge in the presence of hydrogen peroxide and microbubbles

被引：3

作者：

Matsuura, Risako ^{[1
]}

Kometani, Noritsugu ^{[1
]}

Horibe, Hideo ^{[1
]}

Shirafuji, Tatsuru ^{[1
]}

机构：

[1] Osaka City Univ, Grad Sch Engn, Sumiyoshi Ku, 3-3-138 Sugimotocho, Osaka 5588585, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2022年 / 61卷 / SA期

关键词：

underwater discharge; plasma; hydrogen peroxide; microbubbles; phenol; 4-chlorophenol; hydroxyl radical; ADVANCED OXIDATION PROCESSES; CORONA DISCHARGE; HYDROXYL RADICALS; AQUEOUS-SOLUTION; NONTHERMAL PLASMA; ORGANIC-COMPOUNDS; WATER-TREATMENT; DEGRADATION; OZONE; OXYGEN;

D O I：

10.35848/1347-4065/ac2624

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The decomposition of phenol and 4-chlorophenol by underwater pulsed discharge has been examined. The addition of hydrogen peroxide improved the decomposition rate of phenol by about 2.5 times and that of 4-chlorophenol by about 1.5 times. Analysis using a fluorescent probe suggested that the addition of hydrogen peroxide enhanced the production of hydroxyl radicals by about 3 times. We have also examined the effect of using microbubbles on the decomposition of phenol. The use of only microbubbles resulted in a slight increase of the decomposition rate, while the use of both microbubbles and hydrogen peroxide led to a remarkable enhancement of the decomposition rate by about 3.5 times with the conversion of phenol reaching 70% at discharge time of 3 h, which corresponded to the energy yield of 4.39 x 10(-9) mol J(-1).

引用

页数：7

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