High ammonia concentration involved in swine wastewater, which may cause lower performance efficiency during process due to the inhibition of microbial activity related with anaerobic process. This study investigated experimentally the significant aspects on both acidogenic and methanogenic population dynamics in anaerobic batch process treating swine wastewater. For observation of microorganisms adapted in high ammonia concentration, we conducted anaerobic batch processes with duplication for 3 months. During the reactions, the chemical oxygen demand concentration of two reactors decreased by about 68% and 75% of the input swine wastewater and 67 L and 64 L of methane was produced, respectively. During the reactions, there were maintained with high ammonia concentration from 3.4 g/L to 4.1 g/L and total kjeldahl nitrogen from 5.8 g/L to 5.3 g/L. The bacteria denaturing gradient gel electrophoresis (DGGE) profiles showed that Lactobacillus. delbrueckii were identified as major group. Therefore, L.delbrueckii was supposed that it would play an important role in acidogenesis. Also, from methanogenic DGGE profiles, we can infer that the methane gas observed in the overall process was produced by the activity of Methanoculleus marisnigri JR1 and Methanocorpusculum labreanum Z, belonging to the order Methanomicrobiales.
키워드
Swine wastewaterDenaturing gradient gel electrophoresisAcidogensMethanogensAmmonia
저자
Kwanghyun HWANG [ Dept. of Environmental Science and Engineering, Pohang University of Science and Technology ]
Sulhee YOO [ Dept. of Environmental Science and Engineering, Pohang University of Science and Technology ]
Minkyung SONG [ Dept. of Environmental Science and Engineering, Pohang University of Science and Technology ]
Seokhwan HWANG [ Dept. of Environmental Science and Engineering, Pohang University of Science and Technology ]
한국생물공학회 [The Korean Society for Biotechnology and Bioengineering]
설립연도
1984
분야
공학>생물공학
소개
이 법인은 생물 공학의 발전과 보급에 이바지하고, 회원 상호 간의 연구 협력과 친목을 도모함을 목적으로 한다
1. 생물공학 분야의 발전을 위한 연구 협력
2. 생물공학의 실용화를 촉진시키기 위한 산학 협동
3. 학술연구 발표회, 강연회, 연수회 등 학술활동의 개최
4. 국,영문 학술지,소식지,학술회의 Proceedings 및 학술도서의 발간
5. 생물공학 발전을 위한 정책 건의
6. 기타 국제 교류 등 본 학회의 목적 달성을 위한 제반 활동