Application of Double-Dielectric Barrier Discharge Plasma for Removal of Pentachlorophenol from Wastewater Coupling with Activated Carbon Adsorption and Simultaneous Regeneration

被引：0
作者：
Na Lu
Jie Li
Xingxing Wang
Tiecheng Wang
Yan Wu
机构：
[1] Dalian University of Technology,Institute of Electrostatics and Special Power
[2] Ministry of Education of the People’s Republic of China,Key Laboratory of Industrial Ecology and Environmental Engineering
来源：
Plasma Chemistry and Plasma Processing | 2012年 / 32卷
关键词：
Double-dielectric barrier discharge plasma; Activated carbon adsorption; Wastewater treatment; Degradation; Activated carbon regeneration;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Wastewater containing pentachlorophenol (PCP) was treated by granular activated carbon (GAC) adsorption and double-dielectric barrier discharge (D-DBD) plasma. A packed bed D-DBD reactor was applied for removal of PCP on GAC and GAC regeneration, where the discharge gap was filled with GAC. PCP degradation efficiency of 65% and GAC regeneration efficiency (RE) of 87% were achieved. Effects of discharge power, treatment time and O2 flow rate on PCP degradation and GAC regeneration were investigated. Increasing discharge power, treatment time and O2 flow rate were favorable for PCP degradation, and also contributed to GAC RE. C–Cl bonds in PCP were cleaved by D-DBD plasma. Effect of D-DBD plasma on physical and chemical properties of GAC during GAC regeneration process was characterized by N2 adsorption and Boehm titration. This study is expected to demonstrate the feasibility of applying D-DBD plasma for efficient organic wastewater treatment by coupling with GAC adsorption.
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页码：109 / 121
页数：12
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