Study of the Treatment of Organic Waste Gas Containing Benzene by a Low Temperature Plasma-Biological Degradation Method
Yu Li,
Jialin Lv,
Qi Xu,
Yalan Cai,
Hailong Yang,
Yingying Li,
Yanyan Yao,
Wenjuan Wang,
Nan Liu
Affiliations
Yu Li
Key Laboratory of Pollution Treatment and Resource, China National Light Industry, Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450000, China
Jialin Lv
Key Laboratory of Pollution Treatment and Resource, China National Light Industry, Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450000, China
Qi Xu
Business School, Zhengzhou University, Zhengzhou 450000, China
Yalan Cai
Key Laboratory of Pollution Treatment and Resource, China National Light Industry, Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450000, China
Hailong Yang
Key Laboratory of Pollution Treatment and Resource, China National Light Industry, Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450000, China
Yingying Li
Key Laboratory of Pollution Treatment and Resource, China National Light Industry, Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450000, China
Yanyan Yao
Key Laboratory of Pollution Treatment and Resource, China National Light Industry, Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450000, China
Wenjuan Wang
Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai 201210, China
Nan Liu
Key Laboratory of Pollution Treatment and Resource, China National Light Industry, Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration, Department of Material and Chemical Engineering, Zhengzhou University of Light Industry, Zhengzhou 450000, China
Volatile organic compounds (VOCs) from the pharmaceutical and chemical industries have been a matter of concern for some years in China. Achieving efficient degradation of chlorobenzene (CB) in waste gas is difficult because of its high volatility and molecular stability. A DBD (dielectric barrier discharge) biological method was proposed to treat chlorobenzene, aiming to control high operating costs and prevent secondary pollution. In this investigation, a DBD biological method was introduced to deal with chlorobenzene by optimization of process parameters. The results showed that the degradation efficiency of chlorobenzene was close to 80% at a hydraulic retention time (HRT) of 85 s when the inlet concentration was 700 mg·m−3 for the biological method. The degradation efficiency of chlorobenzene reached 80% under a discharge voltage of 7 kV, an inlet concentration of 700 mg·m−3 and an HRT of 5.5 s. The degradation efficiency of an integrated system can be increased by 15–20% compared with that of a single biological system. Therefore, this method can be used as a new way to address chlorobenzene pollution in the pharmaceutical and chemical industries.
