Abstract
The low-temperature plasma and its active groups were produced by a small corona discharge device, which acted on the reactive red K-2DP dye wastewater. Factors to affecting decolorization rate including the power voltage, the initial concentration of dyestuff and the pH value of the dye solution were studied. The results indicated that there was higher decolorization rate under the conditions of higher discharge voltage and lower initial concentration. The alkaline solution was more favourable to the remove of reactive red dye the optimum efficiency for acid scarlet dyestuff. Chromophores and cyclic structure of reactive red K-2BP dye could be destroyed strongly by corona discharge device, and the biodegradability of reactive red K-2BP dye wastewater could be improved.
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