关键词: 反硝化, 氮氧化物, 烟气脱硝, BioDeNOx

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