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Author(s): |
Yongtao Qi, School of Chemical Engineering of Anhui University of Science and Technology, Anhui Huainan, 232001, China
Jing Chen, School of Chemical Engineering of Anhui University of Science and Technology, Anhui Huainan, 232001, China
Tao Liu, School of Chemical Engineering of Anhui University of Science and Technology, Anhui Huainan, 232001, China
Xinmin Zhang, School of Chemical Engineering of Anhui University of Science and Technology, Anhui Huainan, 232001, China
Xia Liao, School of Chemical Engineering of Anhui University of Science and Technology, Anhui Huainan, 232001, China
Can Cui, School of Chemical Engineering of Anhui University of Science and Technology, Anhui Huainan, 232001, China
Minggong Chen, School of Chemical Engineering of Anhui University of Science and Technology, Anhui Huainan, 232001, China |
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Abstract: |
Non-thermal plasma combined with activated carbon was used as a method to purify wastewater ofparacetamol factory. The effect of discharge time, discharge voltage, initial pH value of wastewater，velocityof the air flow and whether adding activated carbon on the COD degradation and decolorization ratio wereinvestigated. The results show that with increasing of discharge time decolorization ratio decreased but theCOD degradation ratio increase firstly and then tend to one constant value. The degradation ratio of COD increasedand the decolorization decreased with the increasing of input voltage. The ratios of COD degradationand decolorization decreased with the initial pH value increased. With the increasing of inputting air flow theCOD degradation ratio increases and have a optimal peak value and then the decolorization ratio decreases.With activated carbon adding the ratio of decolorization and the COD degradation can be improvedsignificantly. In this paper when the input voltage is 25kV, distance between two electrodes 6mm, air flow16L/h, initial pH value 3.73, the dilution wastewater of 4 times was discharged for 120min and then added 1gactivated carbon, the ratio of COD degradation reached to 82.76%.
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