| 학회 | 한국화학공학회 |
| 학술대회 | 2007년 가을 (10/26 ~ 10/27, 한국과학기술원) |
| 권호 | 13권 2호, p.1703 |
| 발표분야 | 생물화공 |
| 제목 | Respirometer를 이용한 아질산 산화균에 대한 Free ammonia의 저해 특성 분석 |
| 초록 | Microbial nitrification, the sequential oxidation of ammonium (NH4+-N) to nitrate (NO3--N) via nitrite (NO2--N), is carried out by ammonia-oxidizing bacteria (AOB) and nitrite-oxidizing bacteria (NOB), respectively. Nitrite can be accumulated in the presence of free ammonia (NH3) which depends on NH4+-N concentration, temperature and pH. Several mechanisms are suggested for the inhibition of nitrite oxidation, but they are not always equally effective and it is believed that the nitrite oxidation rate and degree of inhibition are different for each NOB species. A respirometric method was developed to measure the rates of ammonia oxidation and nitrite oxidation separately and it enabled the investigation of individual ammonia and nitrite oxidation kinetics. The objective of this study is to analyze the effect of free ammonia inhibition on the activities of NOB and to find out the cause of different kinetic results from the literature. |
| 저자 | 김동진1, 이동익1, 김혜영1, 이수철2, 한동우2 |
| 소속 | 1한림대, 2(주)에코비젼 |
| 키워드 | Nitrification; nitrite oxidizer; inhibition; respirometer |
| 원문파일 | 초록 보기 |
