대한환경공학회지 (Journal of Korean Society of Environmental Engineers)

  • 제28권2호
  • /
  • Pages.158-164
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  • 2006
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  • 1225-5025(pISSN)
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  • 2383-7810(eISSN)
대한환경공학회 (Korean Society of Environmental Engineers)
권호 표지

고상(固相) 미세 추출법에 의한 축산 관리시설에서 발생하는 악취성 가스 화합물의 정량적 평가

Quantification of Odorants from Animal Husbandry using Solid-phase Microextraction

  • 김재혁 (서울시립대학교 환경공학과) ;
  • 최홍림 (서울대학교 농업생명대학) ;
  • 권소영 (서울시립대학교 환경공학과) ;
  • 임홍래 (서울시립대학교 환경공학과) ;
  • ;
  • ;
  • 박철휘 (서울시립대학교 환경공학과) ;
  • 김현욱 (서울시립대학교 환경공학과)
  • Kim, Jae-Hyuck (Department of Environmental Engineering, University of Seoul) ;
  • Choi, Hong-Lim (School of Agricultural Biotechnology, Seoul National University) ;
  • Kown, So-Young (Department of Environmental Engineering, University of Seoul) ;
  • Lim, Hong-Lae (Department of Environmental Engineering, University of Seoul) ;
  • McConnell, Laura L. (US Dept. of Agriculture, Agricultural Research Service, Environmental Quality Laboratory) ;
  • Arispe, Susana (Department of Civil & Environmental Engineering, University of Maryland) ;
  • Park, Chul-Hwi (Department of Environmental Engineering, University of Seoul) ;
  • Kim, Hyun-Ook (Department of Environmental Engineering, University of Seoul)
  • 발행 : 2006.02.28
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초록

축산 관리시설로부터 발생하는 악취와 이를 저감하려는 연구들이 국내에서 활발히 진행되고 있다. 축산 관리시설로부터 발생하는 악취를 저감시키기 위해서는 주요 악취 기인 화합물 및 이들의 발생 메커니즘이 규명되어져야 하는데, 이를 위해 정확하고 객관적인 악취 화합물의 분석 기술이 필수적이다. 이에, 본 연구에서는 고상(固想) 미세추출법(SPME; Solid-phase microextraction)을 이용하여 현장에서 대상 화합물을 흡착하고, GC/MSD 혹은 GC/FID를 이용하여 정량 분석하여 화합물의 손실을 최소화 하는 분석 방법을 소개하고자 한다. 본 연구에서의 대상 악취 화합물은 trimethylamine(TMA), carbon disulfide($CS_2$), dimethyl sulfide(DMS), dimethyl disulfide(DMDS), acetic acid(AA), propionic arid(PA) 그리고 n-butyric acid(BA)이다. SPME-GC 검정곡선의 직선성을 나타내는 결과로 TMA의 결정계수($R^2$)는 0.984(0.056-1.437), $CS_2$는 0.996(0.039-0.999), DMS는 0.994(0.029-0.756), DMDS는 0.995(0.024-0.623), AA는 0.992(0.068-1.314), PA는 0.955(0.047-0.940), 그리고 BA는 0.976(0.036-0.712)이었다. 분석 검출한계는 AA, PA, BA, TMA, DMS, $CS_2$, DMDS에 대하여 각각 5.67, 6.39, 5.78, 25.2, 0.098, 0.363, 0.099 ppbv이었다. 본 연구에서 제안한 방법을 이용하여 계사, 돈사 및 우사에서 발생하는 악취화합물을 정량 분석하였다. 계사 내부에서 DMDS를 제외한 모든 화합물이 검출이 되었는데, 문헌에서 보고된 human odor threshold를 초과하였다.

Offensive odor from CAFO(concentrated animal feeding operation) and its control have become a significant issue in Korea. Control of odors from the CAFO requires to identify major odorant and their generation mechanisms. In this study, an easy method to collect gas sample and to quantify its odorants is proposed. The method involves on-site odorant extraction with solid-phase microextraction and quantitation with GC/MSD or GC/FID. Analytes of the current study include: trimethylamine(TMA), carbon disulfide($CS_2$), dimethyl sulfide(DMS), dimethyl disulfide(DMDS), acetic acid(AA), propionic acid(PA) and n-butyric acid(BA). The resulting linearity($R^2$) of calibration curve for each analyte was good over the range from several ppbv to ppmv; 0.984 for TMA(0.056-1.437), 0.996 for $CS_2$(0.039-0.999), 0.994 for DMS(0.029-0.756), 0.995 for DMDS(0.024-0.623), 0.992 for AA(0.068-1.314), 0.955 for PA(0.047-0.940), and 0.976 for BA(0.036-0.712). Method detection limits were 5.67, 6.39, 5.78, 25.2, 0.098, 0.363 and 0.099 ppbv for AA, PA, BA, TMA, DMS, $CS_2$, and DMDS, respectively. With the developed method, odorants from poultry, swine, and cattle barns were analysed. All the compounds but DMDS were detected from the sample collected in the poultry barn, and their levels exceeded the representative published human olfactory threshold.

키워드

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