The objective of this study was to investigate the response characteristics and performance of a biofilter in the removal of ammonia, as a malodor compound. A trickle-bed type biofilter was applied for this study, and operated at the ammonia loading rate of 0.97-15.52 g/m3·h. The results of the experiment indicate that the critical loading rate of ammonia to the biofilter was 10.7 g/m3·h and the elimination capacity was 11.6 g/m3·h. The analysis of nitrogen mass balance in the reactor indicates that inlet nitrogen as gas phase was converted through the biofilter into NH4 + (41.5% by mass), NO2 - (43%), and NO3 - (15%) as the available form of nitrogen in the effluent liquid. Free ammonia concentration in the effluent liquid was estimated as being in the range from 0.14 to 2.93 mg/L (average 1.7 mg/L) during the experimental period.

1. 서 론
 2. 실험방법
  2.1 실험장치
  2.2 실험조건
  2.3 분석방법
 3. 결과 및 고찰
  3.1 장기간 연속측정에 따른 제거효율 분석
  3.2 동력학적 분해속도 분석
  3.3 질소 물질수지 분석
 4. 결 론
 References

• 윤용경(서울과학기술대학교 환경공학과) | Yongkyeong Yoon
• 신재용(서울과학기술대학교 환경공학과) | Jaeyong Shin
• 김대근(서울과학기술대학교 환경공학과) | Daekeun Kim Corresponding author