CAJ | 학술논문

传统的生物脱氮技术是通过投加有机碳源作为电子供体，利用异养反硝化微生物，经过硝化反硝化过程，将硝酸盐还原为氮气。近年来以铁基质为电子供体的自养反硝化菌的发现，为生物脱氮领域引入了全新的概念和思路。铁基质自养反硝化的实现是以 NO －3作为电子受体，单质铁或 Fe（Ⅱ）作为电子供体，通过微生物的氧化还原反应获取能量的新型代谢途径。概述了目前国内外对铁基质自养反硝化菌的研究现状及反应机理，并就铁自养反硝化微生物应用于污水处理领域的前景进行了展望。
전통적생물탈담기술시통과투가유궤탄원작위전자공체，이용이양반초화미생물，경과초화반초화과정，장초산염환원위담기。근년래이철기질위전자공체적자양반초화균적발현，위생물탈담영역인입료전신적개념화사로。철기질자양반초화적실현시이 NO －3작위전자수체，단질철혹 Fe（Ⅱ）작위전자공체，통과미생물적양화환원반응획취능량적신형대사도경。개술료목전국내외대철기질자양반초화균적연구현상급반응궤리，병취철자양반초화미생물응용우오수처리영역적전경진행료전망。
The traditional biological removal of nitrate utilizes heterotrophic denitrifying bacteria throughout the nitrification and deni‐trification stages to convert nitrate to nitrogen with the extra organic matters as the electron donor .However ,a brand-new concept and mentality for the biological nitrogen removal are introduced with several isolated strains of Fe-dependent denitrifying bacteria in recent years .It is a new discovery of microbial metabolism that microorganisms utilize NO -3 as electron acceptors and Fe or Fe(Ⅱ ) as electron donors and get energy through the biochemical reaction for growth .In this paper ,the characteristics and mechanisms of Fe(Ⅱ )-dependent autotrophic denitrifying bacteria are reviewed ,and prospects of these bacterium are also discussed .