摘要
热脱附技术已广泛用于修复有机污染土壤,但该技术存在着能源消耗过高的问题。针对该问题,本文主要从热脱附工艺能耗以及土壤性质对热脱附能耗的影响两个方面进行分析,总结了相应的热脱附节能降耗措施。钢铁行业钢铁废物产量大幅增加,为推进钢铁行业低排放改造,对钢铁废物进行资源再利用,本文讨论了将钢铁废物作为添加剂协同热脱附去除有机污染物的应用趋势和优缺点。钢铁废物中含有Fe2O3、CaO、Ca(OH)2等大量具有增强热脱附效果的成分,将其作为添加剂协同热脱附具有良好的发展前景。钢铁废物中的微量杂质可能会对洁净土壤产生不利影响,在实际工程应用中应充分考虑。
Thermal desorption technology has been widely used to remediate organic contaminated soil, but it has the problem of high energy consumption. Aiming at the high energy consumption, this paper mainly analyzes the energy consumption of thermal desorption process and the impact of soil properties on the energy consumption of thermal desorption, and summarizes the corresponding energy saving and consumption reduction measures for thermal desorption. The production of steel waste in the steel industry has increased significantly. In order to promote the low-emission transformation of the steel industry and reuse the steel waste, this paper discusses the application trends and advantages and disadvantages of using steel waste as an additive for synergistic thermal desorption to remove organic contaminants. Steel waste contains a large number of components with enhanced thermal desorption effect, such as Fe2O3、CaO、Ca(OH)2, which has a good development prospect as an additive for synergistic thermal desorption. Trace impurities in steel waste may have adverse effects on clean soil, which should be fully considered in practical engineering applications.
作者
高卫国
钮国耀
邢绍文
Gao Weiguo;Niu Guoyao;Xing Shaowen(Shanghai Baofa Environmental Science Technology Co.,Ltd.,Shanghai,201999;Baowu Group Environment Resource Technology Co.,Ltd.,Shanghai,201999;School of Environmental and Chemical Engineering,Shanghai University,Shanghai,200444)
出处
《当代化工研究》
2023年第1期5-7,共3页
Modern Chemical Research
基金
上海市科学技术委员会重点项目“有机污染土壤热脱附机制研究与增效材料研发”(项目编号:19DZ1205202)。
关键词
热脱附
钢铁废物
节能降耗
thermal desorption
steel waste
energy saving
