한국환경과학회지 제28권 제1호 (p.137-145)

|ORIGINAL ARTICLE|
액비순환시스템의 양돈농장 환경개선 효과

Effects of the Liquid Manure Circulation System on the Environmental Improvement of Swine Farm
키워드 :
LMCS,Odor reduction,Environmental improvement,Swine farm

목차

Abstract
1. 서론
2. 재료 및 방법
  2.1. 조사농장
  2.2. 액비 및 악취분석
  2.3. 환경상태
  2.4. 통계분석
3. 결과 및 고찰
  3.1. 액비순환
  3.2. 액비성상
  3.3. 악취농도
  3.4. 환경상태
4. 결 론
REFERENCES

초록

The purpose of this study was to evaluate the effect of implementing a Liquid Manure Circulation System (LMCS) on the environmental improvement of swine farms. Bacterial counts at different circulation phases of the LMCS were measured. Air in the swine facility and the liquid manure in each step of LMCS were sampled and gaseous composition detected in swine farms both with and without LMCS to compare the environmental conditions in either case. There were no differences in the total bacteria count at any circulation phase in the LMCS. Escherichia coli were detected at a very low abundance only at the outlet of the slurry pit (1.5×102CFU/㎖). Salmonella were not detected at any phase. The LMCS clearly affected the odor strength of the swine farm and improved the air quality in the swine facility. On-site odor strength - inside, at the exhaust, and at the border of the swine facility - were clearly lowered in farms applying LMCS. Furthermore, the levels of ammonia, hydrogen sulfide, and carbon dioxide were improved in swine facilities applying LMCS.