| Title |
Biological Nutrient Removal of Low Strength Municipal Wastewater Containing Nightsoil |
| Authors |
안종화(Jong Hwa Ahn), 남광현(Kwang Hyun Nam), 민경석(Kyung Sok Min) |
| Abstract |
This study was undertaken to investigate the nutrient removal efficiencies and the operating parameters for the treatment of low strength municipal wastewater containing nightsoil by using laboratory scale Anaerobic-Anoxic-Oxic process. The average removal efficiencies of COD, BOD and SS were 88%, 92%, and 91% respectively. It could be suggested by this study that about 4hr HRT of oxic reactor is required for the complete nitrification and at least 3hr HRT of anoxic reactor is required for 50∼60% nitrogen removal efficiencies. It was also found that 1hr HRT of anaerobic reactor is enough to release orthophosphorus from the cell into solution. |