Journal of the Korea Organic Resources Recycling Association (유기물자원화)

Korea Organic Resources Recycling Association (유기성자원학회)
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A study on the estimation of unit load generation and discharge from livestock resources of piggery

돼지 축분자원화물의 발생 및 배출부하 원단위 산정에 관한 연구

  • Han, Gee-Bong (Department of biotechnology Environmental engineering division, The Catholic university of Korea) ;
  • Kang, Young-Hee (Department of biotechnology Environmental engineering division, The Catholic university of Korea) ;
  • Yoon, Ji-Hyun (Department of biotechnology Environmental engineering division, The Catholic university of Korea) ;
  • Rim, Jay-Myoung (Department of environmental engineering, Kangwon university) ;
  • Won, Chul-Hee (Department of environmental engineering, Kangwon university) ;
  • Choi, Seung-Chul (Department of environmental engineering, Kangwon university)
  • 한기봉 (가톨릭대학교 생명공학부 환경공학전공) ;
  • 강영희 (가톨릭대학교 생명공학부 환경공학전공) ;
  • 윤지현 (가톨릭대학교 생명공학부 환경공학전공) ;
  • 임재명 (강원대학교 환경공학과) ;
  • 원철희 (강원대학교 환경공학과) ;
  • 최승철 (강원대학교 환경공학과)
  • Received : 2006.08.21
  • Accepted : 2006.09.04
  • Published : 2006.09.30
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Abstract

In this study, the characterization of unit load generation and discharge from various type stall of piggery was conducted by investigation and analysis of contaminants loading from piggery urine, manure and wastewater. The results are summarized as follows: The unit load generation of filth increases as piggery grow older, but there was not large enough difference among those values of unit load evaluated for various stall types if mean values of each type of stall are considered. The generation amounts of manure and urine were total 4.57kg/head/d of 1.49kg manure/head/d and 3.08kg urine/head/d with consideration of 3 seasons and live weight. The finalized mean unit load generation of filth were estimated at BOD 199.5g/head/d, $COD_{cr}\;413.5g/head/d$, T-N 27.8g/head/d, T-P 5.3g/head/d with consideration of seasons and the type of stalls. The wastewater unit loads discharged from cement type stall were estimated at BOD 31.3g/head/d, $COD_{cr}\;95.6g/head/d$, T-N 8.9g/head/d, T-P가 3.1g/head/d. The sum of manure unit load generation considered with manure collection ratio(80%, 90%) and wastewater unit load was almost similar when compared to the unit load discharged from slurry type stall even though more or less difference were appeared according to each contaminants and parameters.

본 연구에서는 돼지 분 뇨 및 폐수의 오염물 부하를 조사 및 분석함으로써 다양한 형태의 돼지 돈사로부터 발생 및 배출되는 오염물 부하 원단위를 산정한 결과는 다음과 같다. 오염물질의 발생부하 원단위는 돼지의 성장단계에 비례하여 증가하였으나, 돈사의 형태에 따른 발생부하 원단위는 각 돈사별 평균값을 고려할 때 큰 차이를 보이지 않았다. 3계절과 생체 중량을 고려한 평균 분뇨 발생량은 분이 1.49kg/head/d, 뇨가 3.08kg/head/d로서 총 4.57kg/head/d가 발생하였다. 돈사의 형태와 계절을 고려한 최종적인 평균 오염물질 발생부하 원단위는 BOD 199.5g/head/d, $COD_{cr}\;413.5g/head/d$, T-N 27.8g/head/d, T-P가 5.3g/head/d로 나타났다. 시멘트 돈사에서 배출되는 폐수의 배출부하 원단위는 BOD 31.3g/head/d, $COD_{cr}\;95.6g/head/d$, T-N 8.9g/head/d, T-P가 3.1g/head/d로 조사되었다. 분의 수거율(80%, 90%)을 고려한 분의 발생부하 원단위와 시멘트 돈사의 폐수발생 원단위의 합을 슬러리 돈사의 배출부하 원단위와 비교 시, 오염물질과 항목별로 다소의 차이는 있으나 거의 유사하였다.

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