Abstract: As a new flue gas denitration technology，denitrifying denitration has a prospect for industrialization due to low pollution，simple process，low running costs. In this paper，the existing methods of denitrifying denitration are described from two aspects——the source of nitrogen oxides and denitration technology research. The feature and advantage of single denitrification method，denitrification combined with chemistry method and aerobic bacteria denitration method are analyzed and future direction was prospected：single denitrification method should be focused on more optimized denitrifying bacteria screening；denitrification combined with chemistry method should be focused on better metal complexants searching and aerobic bacteria denitration method needs further mechanism exploring.

Key words: denitrification, nitrogen oxides, flue gas denitration, BioDeNOx

摘要： 作为一种新型的烟气脱硝技术，反硝化菌还原法因产物污染小、工艺简单、运行成本低而具有较大的工业化前景。本文从氮氧化物来源、反硝化菌脱硝技术及其研究进展两方面介绍了现有的反硝化脱硝方法：单一反硝化法、反硝化结合化学脱硝法和好氧反硝化脱硝法的特点，通过分析各种方法的优势展望了反硝化脱硝技术的发展前景：单一反硝化法应着力筛选更优化的反硝化菌种；反硝化法结合化学脱硝法应着力寻找更好的金属络合剂；好氧反硝化法需要进一步探索脱硝机理。

关键词: 反硝化, 氮氧化物, 烟气脱硝, BioDeNOx