摘要
硫自养反硝化(SAD)是一种有前途的生物脱氮工艺,是利用还原性硫化合物(如S^(0),S^(2-),S_(2)O_(3)^(2-))作为电子供体,将硝酸盐氮(NO_(3)--N)或亚硝酸盐氮(NO_(2)--N)还原成氮气(N2)的工艺,适用于处理氮和硫污染的废水。与传统的异养反硝化相比,硫自养反硝化工艺无需额外添加有机碳,在实际工程应用中,可有效节省运行成本。为更好推动硫自养反硝化运行工艺的发展及应用,阐述了硫自养反硝化的原理,对硫自养反硝化工艺及与其他脱氮技术耦合工艺进行介绍,并对今后的相关研究进行展望,旨在为未来硫自养反硝化工艺发展提供参考。
Sulfur autotrophic denitrification(SAD)is a promising biological denitrification process,which uses reducing sulfur compounds(such as S^(0),S^(2-),S_(2)O_(3)^(2-))as electron donors to remove nitrate nitrogen(NO3--N)Or the process of reducing nitrite nitrogen(NO_(2)--N)to nitrogen(N_2)),which is suitable for treating wastewater polluted by nitrogen and sulfur.Compared with the traditional heterotrophic denitrification,the sulfur autotrophic denitrification process does not require additional organic carbon,which can effectively save operating costs in practical engineering applications.In order to better promote the development and application of sulfur autotrophic denitrification operation technology,the principle of sulfur autotrophic denitrification is explained,the sulfur autotrophic denitrification process and the coupling process with other denitrification technologies are introduced,and the related research in the future The prospect is to provide a reference for the future development of sulfur autotrophic denitrification process.
作者
刘晓帅
李再兴
尹思婕
高玮
吕建伟
吕永涛
刘艳芳
Liu Xiaoshuai;Li Zaixing;Yin Sijie;Gao Wei;Lv Jianwei;Lv Yongtao;Liu Yanfang(College of Environmental Sciences and Engineering,Hebei University of Science and Technology,Shijiazhuang 050018,China;Hebei Huayao Environmental Protection Research Institute Corporaion Ltd.,Shijiazhuang 050000,China)
出处
《煤炭与化工》
CAS
2021年第7期155-160,共6页
Coal and Chemical Industry
基金
河北省重点研发计划项目,低C/N制药废水总氮达标关键技术研究与示范,19273601D。
关键词
硫自养反硝化
原理
工艺
进展
Sulfur autotrophic denitrification
Principle
Process
作者简介
刘晓帅(1996—),男,河北石家庄人,硕士研究生。
