With the improvement of national sewage discharge standards,carbon sources need to be added to the biochemical tanks of sewage treatment plants to increase the total nitrogen removal rate,carry out biological denitrification,and achieve effluent discharge standards.Studying the removal efficiency of total nitrogen and nitrate nitrogen in biological denitrification using a single or composite carbon source in biochemical systems can provide reference for selecting carbon sources for sewage treatment plants,improve the total nitrogen removal rate of biochemical systems,and reduce the operating costs of sewage treatment plants.
关键词
单一碳源/复合碳源/生物反硝化/脱氮效能
Key words
single carbon source/composite carbon source/biological denitrification/denitrification efficiency