A novel plasma-assisted rotating disk reactor: Enhancement of degradation efficiency of rhodamine B

被引：24
作者：
Cai, Yong [1 ,2 ,3 ]
Luo, Yong [3 ]
Sun, Bao-Chang [3 ]
Fan, Tian-Xi [1 ,2 ,3 ]
Chu, Guang-Wen [1 ,2 ,3 ]
Chen, Jian-Feng [1 ,2 ,3 ]
机构：
[1] Beijing Univ Chem Technol, Beijing Adv Innovat Ctr Soft Matter Sci & Engn, Beijing 100029, Peoples R China
[2] Beijing Univ Chem Technol, State Key Lab Organ Inorgan Composites & Technol, Beijing 100029, Peoples R China
[3] Beijing Univ Chem Technol, Minist Educ High Grav Engn Technol, Res Ctr, Beijing 100029, Peoples R China
来源：
CHEMICAL ENGINEERING JOURNAL | 2019年 / 377卷
基金：
中国国家自然科学基金;
关键词：
Advanced oxidation processes; Plasma-assisted rotating disk reactor; Wastewater treatment; DIELECTRIC BARRIER DISCHARGE; MASS-TRANSFER; PHOTOCATALYTIC DEGRADATION; GAS-LIQUID; ELECTRICAL-DISCHARGE; ADVANCED OXIDATION; PACKED-BEDS; BLACK; WATER; TIO2;
D O I：
10.1016/j.cej.2018.09.058
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Plasma-based process intensification is considered as a promising technology in advanced oxidation processes (AOPs) for the wastewater treatment. In this work, we have developed a novel plasma-assisted rotating disk reactor (plasma-RDR). The rotating disk was used as ground electrode to improve the discharge uniformity, and also as an internal to enhance the mass transfer efficiency. Experimental results show that the degradation efficiency of Rhodamine B (RhB) in the plasma-RDR increased by 60% within 30 min when the rotational speed varied from 0 to 500 rpm. A discussion for the enhancement of degradation efficiency in the plasma-RDR was presented. Effects of peak voltage, electrode gap, and other operating conditions on the degradation efficiency of RhB in the plasma-RDR were investigated. Major intermediates of RhB degradation after the plasma treatment were also analyzed.
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页数：10
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