Abstract
Anaerobic digester supernatant including high concentrations of nitrogen is recycled to water treatment line and make pollutant load increase in municipal wastewater treatment plant(MWTP). To treat nitrogen in anaerobic digester supernatant is suggested the method of MWTP retrofit. In this study, the lab scale reactor was operated about 200 days using supernatant of anaerobic digester. The results could draw operation condition that ammonium nitrogen removal efficiency more than 90% and nitrite conversion efficiency over 70%. Correlation between operation efficiency and operation factors was analyzed based on the operation results. Ammonium nitrogen remove efficiency and nitrite conversion efficiency were related to solid retention time (SRT), ammonium nitrogen load and ammonium nitrogen loading per unit mixed liquer suspended solid (MLSS). Results of this study can be used effective data on nitritation of supernatant of anaerobic digester, and be expected to increase availability of nitritation.
| Translated title of the contribution | Correlation between operation factors and nitritation using anaerobic digester supernatant at ordinary temperature |
|---|---|
| Original language | Korean |
| Pages (from-to) | 244-249 |
| Number of pages | 6 |
| Journal | 한국습지학회지 |
| Volume | 18 |
| Issue number | 3 |
| DOIs | |
| State | Published - Aug 2016 |