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Decomposition characteristics of pollutants by time dependent variation of livestock carcass leachate

매몰지 침출수의 경시변화에 따른 오염물질 분해특성

  • 김용준 (국립환경과학원 환경자원연구부 자원순환연구과) ;
  • 강영렬 (국립환경과학원 환경자원연구부 자원순환연구과) ;
  • 황동건 (국립환경과학원 환경자원연구부 자원순환연구과) ;
  • 전태완 (국립환경과학원 환경자원연구부 자원순환연구과) ;
  • 신선경 (국립환경과학원 환경자원연구부 자원순환연구과)
  • Received : 2017.09.15
  • Accepted : 2017.11.04
  • Published : 2017.12.25

Abstract

The purpose of this study is to investigation of the decomposition characteristics in a pilot-scale burial site of livestock in three kinds of typical soils in Korea: sandy loam soil, clay loam soil, and sandy soil. In this study, we confirmed that most of the animals in the condition were decomposed within three years as mentioned in the "Livestock burial regional environmental research guidelines." We also determined that the decomposition rate of dead cows was higher than that of dead pigs, and that the biodegradation rate depends on the soil types in the following order: sandy soil > clay loam soil > sandy loam soil. The various external environment factors, such as temperature, moisture, pH, earthiness, nutrient, and the burial depth, should be managed properly for appropriate decomposition of dead animals.

본 연구의 목적은 돼지와 소를 대상으로 우리나라 대표 토양인 사양질, 식양질, 사질의 토양에 따른 실험실 규모 가축 매몰지를 설치하여 3년동안 분해특성을 살펴보는 것이다. 그 결과 가축 매몰지역 환경조사지침에 따른 가축 매몰지 발굴금지기간인 3년을 기준으로 대부분 분해되는 것을 확인하였으며, 사체분해를 위해 중요인자로 온도, 수분, pH, 토성, 영양소, 매몰지 깊이 등 다양한 외부환경 요인이 적절히 유지되어야 할것으로 판단되었다. 또한 소의 경우가 돼지보다 빠르게 분해되었는데, 토양에 따른 분해속도를 확인한 결과 사질 > 식양질 > 사양질 순으로 분해가 이루어지는 것으로 판단되었다.

Keywords

References

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