Abstract
Coal mine acid drainage is a type of industrial wastewater generated in the process of coal production and utilization that has a low pH and contains a small amount of organic matter and SO42−, which is harmful to the environment. The ·OH scavenger was used to optimize the grounded electrode atomized corona discharge (GEACD) technology for the treatment of coal mine acidic wastewater. The effects of various factors on the discharge effect were investigated, and the optimal operating scheme for the subsequent test was determined as 35 mm distance between barrel electrodes, 0.6 mm diameter of wire electrodes, and a flow rate of 45 mL/min. The effects of discharge voltage, discharge time, and ·OH scavenger on COD removal rate and pH in coal mine acid drainage were also investigated. The results showed that at the optimum discharge voltage of 12 kV, discharge time of 66 min, and SO42− to ethanol concentration ratio of 1, the COD value decreased from 152.84 mg/L to 43.27 mg/L, and the pH value increased from 5.6 to 6.1.
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MDPI and ACS Style
Yang, C.; Ma, X.; Zhang, L.; Lu, G.; Geng, D.; Zhang, Y.; You, X.; Liu, H.; Tian, Y.
·OH Scavenger Optimized Grounding Electrode Atomization Corona Discharge Technology for Treatment of Coal Mine Acidic Wastewater. Processes 2024, 12, 1319.
https://doi.org/10.3390/pr12071319
AMA Style
Yang C, Ma X, Zhang L, Lu G, Geng D, Zhang Y, You X, Liu H, Tian Y.
·OH Scavenger Optimized Grounding Electrode Atomization Corona Discharge Technology for Treatment of Coal Mine Acidic Wastewater. Processes. 2024; 12(7):1319.
https://doi.org/10.3390/pr12071319
Chicago/Turabian Style
Yang, Chaofen, Xiaofeng Ma, Lunqiu Zhang, Guang Lu, Dantong Geng, Yifan Zhang, Xiaolong You, Huan Liu, and Yueyao Tian.
2024. "·OH Scavenger Optimized Grounding Electrode Atomization Corona Discharge Technology for Treatment of Coal Mine Acidic Wastewater" Processes 12, no. 7: 1319.
https://doi.org/10.3390/pr12071319
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