{"title":"Biological treatments of mercury and nitrogen oxides in flue gas: biochemical foundations, technological potentials, and recent advances.","authors":"Zhenshan Huang, Zaishan Wei, Meiru Tang, Shan Yu, Huaiyong Jiao","doi":"10.1016/bs.aambs.2021.04.001","DOIUrl":null,"url":null,"abstract":"<p><p>Nitrogen oxides (NO<sub>x</sub>) and mercury (Hg) are commonly found coexistent pollutants in combustion flue gas. Ever-increasing emission of atmospheric Hg and NO<sub>x</sub> has caused considerable environmental risks. Traditional flue gas demercuration and denitration techniques have many socioeconomic, technological and environmental drawbacks. Biotechnologies can be a promising and prospective alternative strategy. This article discusses theoretical foundation (biochemistry and genomic basis) and technical potentials (Hg<sup>0</sup> bio-oxidation coupled to denitrification) of bioremoval of Hg and NO<sub>x</sub> in flue gas and summarized recent experimental and technological advances. Finally, several specific technical perspectives have been put forward to better guide future researches.</p>","PeriodicalId":7298,"journal":{"name":"Advances in applied microbiology","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Advances in applied microbiology","FirstCategoryId":"99","ListUrlMain":"https://doi.org/10.1016/bs.aambs.2021.04.001","RegionNum":2,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2021/5/19 0:00:00","PubModel":"Epub","JCR":"Q1","JCRName":"Immunology and Microbiology","Score":null,"Total":0}
引用次数: 0
Abstract
Nitrogen oxides (NOx) and mercury (Hg) are commonly found coexistent pollutants in combustion flue gas. Ever-increasing emission of atmospheric Hg and NOx has caused considerable environmental risks. Traditional flue gas demercuration and denitration techniques have many socioeconomic, technological and environmental drawbacks. Biotechnologies can be a promising and prospective alternative strategy. This article discusses theoretical foundation (biochemistry and genomic basis) and technical potentials (Hg0 bio-oxidation coupled to denitrification) of bioremoval of Hg and NOx in flue gas and summarized recent experimental and technological advances. Finally, several specific technical perspectives have been put forward to better guide future researches.
期刊介绍:
Advances in Applied Microbiology offers intensive reviews of the latest techniques and discoveries in this rapidly moving field. The editors are recognized experts and the format is comprehensive and instructive.
Published since 1959, Advances in Applied Microbiology continues to be one of the most widely read and authoritative review sources in microbiology.
Recent areas covered include bacterial diversity in the human gut, protozoan grazing of freshwater biofilms, metals in yeast fermentation processes and the interpretation of host-pathogen dialogue through microarrays.