Recent Advances in Bio-media Process for Biological Nitrogen Removal-A Review

• Published in: 한국수처리학회지, 29(3) pp. 15 - 25
• Main Authors: 제스민아터, 이재엽, 김일호
• Format: Journal Article
• Language: English
• Published: 한국수처리학회 30.06.2021
• Subjects: 토목공학
• ISSN: 1225-7192; 2289-0076
• DOI: 10.17640/KSWST.2021.29.3.15

Biological nitrogen (N) removal with the bio-media process has been the preferred technology and recent developments in this technology have focused on improving N removal. However, integrated fixed film activated sludge, external nitrification, membrane, aerobic granulation BNR systems and more efficient N removal bioprocesses have been developed nowadays. To achieve N removal more efficiently, methods of nitrification and denitrification have been developed by preventing nitrate formation and enforcing nitrification-denitrification over nitrite. The process requires less oxygen and organics than nitrification-denitrification over nitrate allowing lower N concentrations to be achieved for the same influent organic’s concentration and oxygen supply. Biological filtration process using the bio-media technique that utilizes micro-organisms to remove nutrients from the wastewater. A recent study has been shown that various bio-media efficiently used for the nitrification-denitrification process, also the growth of biofilm is the potential for ammonia removal. Moreover, this technology applies to a wide range and effective in removing up to 90-95% nutrients from the effluents. Therefore, the specific surface area of bio-media is available for bio-film growth depends on media types. The main purpose of this review paper is to study the application and performance of different bio-media and their removal efficiency using biological biofilm process. KCI Citation Count: 0