| Title |
Nitrogen Behavior and Nitrification Inhibition during High Strength Ammonium Wastewater Treatment by Biofilm Process |
| Authors |
한동준 ; 임재명 ; 강성환 ( Dong Joon Han ; Jay Myoung Rim ; Sung Hwan Kang ) |
| Abstract |
This study was performed to investigate the nitrogen behavior in piggery wastewater treatment, and the inhibitory condition in nitrification was also examined. The ammonia nitrogen was removed via stripping, nitrification, autotrophic cell synthesis, and heterotrophic cell synthesis. The removal percents by each step were 12.1%, 68.9%, 15.0%, and 4.0%, respectively. Nitrite and nitrate production rates were found 0.42㎎/g MLVSS/hr and 0.05㎎/g MLVSS/hr, respectively. Maximum removal rate of the total ammonia nitrogen occurred at temperature over 22℃, regardless of the volumetric loading rates. Nitrification inhibition of piggery wastewater was found to occur at an influent volumetric loading rate over 0.2 NH₃-N ㎏/㎥3d. |