Comparative Evaluation of Granule Sludge and Biofilm Treatment on Nitrogen and Phosphorus Removal

• Published in: 한국수처리학회지, 16(4) pp. 63 - 71
• Main Authors: 현길수, 최정우
• Format: Journal Article
• Language: English
• Published: 한국수처리학회 01.12.2008
• Subjects: 토목공학
• ISSN: 1225-7192; 2289-0076

Comparative research of biogranulation and biofilm processes were performed to investigate the characteristics of nitrogen and phosphorus removal in both reactors. Comparative results of AGS and BF processes showed that the nitrogen and phosphorus removal efficiency of AGS was some higher than that of the BF, despite VLR of nutrients applied for the AGS was higher than that of the BF. It seems that aerobic granulation and biofilm were not sensitive to the organic and nutrients loading rate. The BF with DO level of less than about 3 mg/L, however, showed more cost-effective than the AGS with DO levels of more than about 5 mg/L. These results indicates that the biogranulation and/or biofilm were more effective in reducing nutrients despite shorter HRT compared with the existing AS system. It indicates the efficiencies of the biogranulation and/or biofilm processes on nitrification/denitrification and phosphorus removal depend on the parameters of HRT, DO, C/N and C/P ratio. Comparative research of biogranulation and biofilm processes were performed to investigate the characteristics of nitrogen and phosphorus removal in both reactors. Comparative results of AGS and BF processes showed that the nitrogen and phosphorus removal efficiency of AGS was some higher than that of the BF, despite VLR of nutrients applied for the AGS was higher than that of the BF. It seems that aerobic granulation and biofilm were not sensitive to the organic and nutrients loading rate. The BF with DO level of less than about 3 mg/L, however, showed more cost-effective than the AGS with DO levels of more than about 5 mg/L. These results indicates that the biogranulation and/or biofilm were more effective in reducing nutrients despite shorter HRT compared with the existing AS system. It indicates the efficiencies of the biogranulation and/or biofilm processes on nitrification/denitrification and phosphorus removal depend on the parameters of HRT, DO, C/N and C/P ratio. KCI Citation Count: 1