脉冲电晕放电下焦化废水脱硫的研究

在脉冲电晕放电条件下用武汉钢铁厂的炼焦废水进行了烟气脱硫实验.研究表明,焦化废水具有良好的脱硫能力,在实验温度范围内,其脱硫能力随烟气温度升高而增加.在烟气流量428m³/h,烟气温度65℃, 废水流量107L/h时,脱硫率为85%;引入脉冲电晕进一步提高了脱硫率,在电压52kV时脱硫率提高到90%.在脱除烟气中SO₂的同时,脉冲电晕放电使焦化废水中的油和酚的含量分别降低了39.26%和68.75%,并使99.98%的氰化物被除去,这对解决焦化废水生化处理中好氧微生物失活问题有重要意义.

Research on Desulfurization Using Coke-oven Wastewater with Pulsed Corona Discharge

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.