摘要
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 4 2 8m3 /h ,烟气温度 6 5℃ ,废水流量 10 7L/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 5 2kV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 2 6 %和 6 8 75 % ,并使 99 98%的氰化物被除去 。
A recent investigation into the application of pulsed corona discharge process, in which simultaneous SO 2 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 SO 2 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 428m 3/h, the temperature of simulated flue gas was 65℃ and coke oven wastewater flow was 107L/h, the desulfurization rate was 85%. Introducing pulsed corona discharge to the reactor enhanced the removal efficiencies of SO 2, the desulfurization rate increased to 90% when high voltage was 52kV. When SO 2 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.
出处
《环境科学》
EI
CAS
CSCD
北大核心
2004年第2期77-80,共4页
Environmental Science
基金
国家自然科学基金重点资助项目 (5 0 2 3 70 10 )
关键词
脉冲电晕放电
烟气脱硫
焦化废水
pulsed corona discharge
desulfurization
coke oven wastewater
