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폭기 처리 시 유용 미생물 첨가에 의한 액상 돈분뇨의 화학적 특성 변화 KCI 등재

Effect of Commonly Used Effective Microorganisms on Chemical Properties of Aerated Swine Liquid Manure from a Swine Farm

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동물자원연구 (Annals of Animal Resources Sciences)
강원대학교 동물자원공동연구소 (Institute of Animal Resources Kangwon National University)
초록

A laboratory-scale experiment was conducted to evaluate the effect of supplementing commonly used effective microorganisms on the chemical properties of swine liquid manure. Effective microorganisms used in this study were Bacillus subtilis (1.3×109 colony-forming unit (CFU)/ml), Enterococcus faecium (1.9×1010 CFU/ml), Aspergillus oryzae (2.0×109 CFU/ml), Saccharomyces cerevisiae (6.4×109 CFU/ml), Rhodobacter sphaeroides (1.2×108 CFU/ml), and Streptomyces griseus (6.2×108 CFU/ml). Swine liquid manure collected and decanted from a swine farm was used in this study. Treatments included control (distilled water supplementation), Treatment 1 (T1) (mixed microbes, 109 CFU/ml), and Treatment 2 (T2) (mixed microbes, 107 CFU/ml). Microbial mix was supplemented every 3.5 days and aerated six times (15 min each) a day to facilitate compositing. Ten ml of sample was collected at 2-, 4-, 6-, and 7-week intervals for the measurement of pH, ammonia-N, volatile fatty acid (VFA), total nitrogen, total phosphorus, and total potassium. At seven weeks, samples were further collected to analyze biochemical oxygen demand (BOD) and chemical oxygen demand (COD). Ammonia-N was significantly (p<0.05) decreased in T1 and T2 by 36% and 30%, respectively, compared with control (23%). VFAs including butyrate, iso-butyrate, valerate, iso-valerate, and caproate were not detected in T1 from the four-week aerated sample. The BOD and COD were significantly (p<0.05) decreased in T1 by 96% and 58%, respectively. In conclusion, ammonia-N, VFA, BOD, and COD, known as odor indicators, were decreased in T1 and T2 compared with control, suggesting that effective microorganisms are useful for compositing swine liquid manure

목차
Ⅰ. 서론
Ⅱ. 재료 및 방법
    1. 실험재료 및 실험설계
    2. 폭기처리 시 액상 돈분뇨의 화학적 특성 분석
    3. 통계분석
Ⅲ. 결과
Ⅳ. 고찰
Ⅴ. 요약
사사
Ⅵ. 참고문헌
저자
  • 김경진(경북대학교 축산BT 학과 대학원생) | Gyeongjin Kim (1Graduate Student, Department of Animal Science and Biotechnology, Kyungpook National University, Sangju 37224, Korea)
  • Tabita Dameria Marbun(경북대학교 축산BT 학과 연구원)
  • 김은중(경북대학교 축산BT 학과 교수) | Eun Joong Kim (Professor, Department of Animal Science and Biotechnology, Kyungpook National University, Sangju 37224, Korea, 4)
  • 박창석(예천군청 축산과 연구원) | Chang Seok Park (Researcher, Yecheon-gun County Office, Department of Animal, Yecheon 36819, Korea)
  • 윤주태(예천군농업기술센터 연구원) | Ju Tae Yun (Researcher, Yecheon Agricultural Technology Center, Yecheon 36819, Korea)
  • 최성호(충북대학교 축산학과 교수) | Seongho Choi (Professor, Department of Animal Science, Chungbuk National University, Cheongju 28644, Korea)