钢铁行业二噁英的形成机理及降解方法研究现状

雾霾天气的日益严重使得国家环保部门更加关注大气污染问题,而造成雾霾天气的大气污染物也越来越被熟知并分类治理。在中国二氧化硫和氮氧化物已经进入治理末端阶段,二噁英的治理还处于一个萌芽阶段。二噁英是迄今为止科研领域发现的无意识副产品中毒性最强的化合物之一,对人体的毒性主要体现在伤害的不可逆。介绍了二噁英的形成机理和降解方法,以及此领域的研究现状。同时结合钢铁行业烧结、电炉炼钢等重点工序的生产现状,找到不同流程中可能产生二噁英的机理,针对不同机理找到对应的降解方法。

Research status of formation mechanism and degradation methods of dioxins

The increasingly serious haze weather makes the national environmental protection department pay more attention to the problem of air pollution, and the atmospheric pollutants that cause haze weather are becoming more and more known to us and classified. In China, sulfur dioxide and nitrogen oxides have entered the end stage of governance. And the governance of dioxins is still in its infancy. Dioxins are one of the most toxic compounds in unconscious by-products found in scientific research. The toxicity of dioxins to humans is mainly reflected in the irreversibility of damage. The formation mechanism and degradation methods of dioxins, as well as the current research status in this field are introduced. At the same time, combined with the production status of key processes such as sintering and electric furnace steelmaking in the iron and steel industry, the mechanism of dioxins produced in different processes was founded, and different treatment degradation methods for different mechanisms were proposed.