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  • Title: [Research on desulfurization using coke-oven wastewater with pulsed corona discharge].
    Author: Shao GW, Li J, Wang WL, Li SL.
    Journal: Huan Jing Ke Xue; 2004 Mar; 25(2):77-80. PubMed ID: 15202239.
    Abstract:
    A recent investigation into the application of pulsed corona discharge process, in which simultaneous SO2 removal from simulated flue gas and coke-oven wastewater degradation, was conducted at Wuhan Integrated Steel Plant. The outcome indicates that coke-oven wastewater had good desulfurization ability, and SO2 removal efficiency increased gradually as the simulated flue gas temperature increasing in the temperature range used during the experiment. When the flow of simulated flue gas was 428 m3/h, the temperature of simulated flue gas was 65 degrees C and coke-oven wastewater flow was 107 L/h, the desulfurization rate was 85%. Introducing pulsed corona discharge to the reactor enhanced the removal efficiencies of SO2, the desulfurization rate increased to 90% when high voltage was 52kV. When SO2 was removed from simulated flue gas by pulsed corona discharge, oil and phenols content in coke-oven wastewater decreased 39.26% and 68.75% respectively, and 99.98% content of cyanide was degraded, which is of important value in solving the inactivation problem of aerobic bacteria in biological treatment of coke-oven wastewater.
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