1.The most common method of biological nitrogen removal is by combining the nitrification of the autotrophic nitrobacter and nitrosomonas with the denitrification of heterotrophic denitrifying bacteria.

1.生除氮最常利的是将自营硝酸菌、亚硝酸菌之硝化作营脱硝菌之脱硝作结合。