Fe再生氨/Fe^(Ⅱ)EDTA法同步脱硫脱硝废液研究  

The Removal of SO_2 and NO_x by Ammonia-Fe^(Ⅱ) EDTA Combined with Iron Regeneration

作　　者：刘福[1] 何祥[1] 韩军[1] 

机构地区：[1]武汉科技大学,武汉430081

出　　处：《工业安全与环保》2017年第5期9-11,共3页Industrial Safety and Environmental Protection

基　　金：国家"863"高技术研究发展计划(2012AA062501)

摘　　要：采用氨/Fe^(Ⅱ)EDTA法同步脱除烧结烟气中SO_2和NO_x,并通过铁屑再生废液中Fe^(Ⅱ)维持脱硝效率。实验结果显示,氨/Fe^(Ⅱ)EDTA法脱硫效率可达100%,脱硝效率可达68.3%。但是,随着实验时间的延长,脱硝效率逐步下降。通过铁屑再生Fe^(Ⅱ)-除铁后,脱硝效率从48.8%增加至57.1%。In this paper, it is investigated the removal of SO2 and NOx from flue gas by ammoma/FeⅡ EDTA solutlon m a pilot scale reactor. In order to keep the denitration and desulfurization efficiency, the waste scrubbing solution is generated by iron. The results indicate that desulfurization and denitration efficiency can reach 100% and 68.3 % respectively. How- ever, when time goes by, the denitration efficiency will be decreased gradually. After FeⅢ generation by iron and excess fer- ric ion removal, the denitration efficiency can be increased from 48.8 % to 57.1% .

关 键 词：同步脱硫脱硝 Fe^(Ⅱ)EDTA 氨法 再生 除铁 

分 类 号：X701[环境科学与工程—环境工程]