지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2008.1
- 수록면
- 652 - 658 (7page)
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초록· 키워드
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In general, if two or more substances are present in the medium, growth may occur on the one substrate preferentially metabolized. There may be a temporary growth cessation before growth is resumed on the other substrate. This sequential substrate utilization as shown by a distinct growth phase with temporary growth cessation in the batch curve was referred to as diauxic growth. In this study, a BMP (Biochemical Methane Potential) test was conducted to evaluate the anaerobic biodegradability considering diauxic growth. First, the lag-phase was appeared to separate 1st and 2nd phase by the modified Gompertz model. Glucose was turned out 0.04 days at the initial lag-phase (1st phase.). And the initial lag-phases of wastes were 0.17, 0.71, 1.45 and 3.08 days for food, paper, textile and wood, respectively. The lag-phase of food in 2nd phase turned out to be 7.40 days while the other wastes were 7.80~15.52 days. The 2nd phase appeared degradation of slowly biodegradable matter on the modified Gompertz model. Glucose and wastes were appeared 1nd phase kinetic constant (K1) was 0.02 ~ 0.18 d-1 and 2nd phase kinetic constant (K2) was 0.06 ~ 0.19 d-1. And kinetic constant (K) by first order rate equation were different 1nd phase kinetic constant (K1), and 2nd phase kinetic constant (K2). Such difference of kinetic constants showed it could not a correct description that kinetic constant by first order rate equation. It seems, therefore, that the dynamic analysis method for diauxic growth could be reduced an error of kinetic constant for mixture substrate such as wastes.
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