Research on the general technical specification for biological filter for nitrogen

Biological filter for nitrogen removal is a new technology of wastewater treatment, which combines biological denitrification and physical filtration. In this paper, the operation status of biological filter for nitrogen removal at home and abroad, the necessity of developing the general technical specification of biological filter for nitrogen removal, and the general technical requirements of biological filter for nitrogen removal are described. Through the application of the research results of the general technical specifications of nitrogen removal biofilters, it is expected to promote the operational efficiency of China's nitrogen removal biofilters and achieve significant economic, social and environmental benefits.