Korean Journal of Soil Science and Fertilizer (한국토양비료학회지)

Korean Society of Soil Science and Fertilizer (한국토양비료학회)
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Study of Trace Element and PAHs Distribution for Extensive Regulation Establishment in Raw Material of Compost on Organic Resource

퇴비원료기준 확대설정을 위한 유기성자원의 미량원소 및 PAHs 분포 연구

  • Received : 2006.10.10
  • Accepted : 2006.11.10
  • Published : 2006.12.30
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Abstract

A lot of organic wastes have been produced from diverse industries, they must be tested by the regulation of fertilizer control act if reuse the organic wastes for agricultural utilization. The regulation has had only two criteria; the content of organic matter and 8 heavy metals. This study was conducted to evaluation trace element (boron, cobalt, molybdenum, and selenium) and distribution of organic compounds with different classification for complement the regulation in 16 organic waste materials(62 samples) collected from different regions and industries. Contents of boron(leather industry sludge, $154.2mg\;kg^{-1}$; food company sludge, $57.1mg\;kg^{-1}$), cobalt(industrial area sewage sludge, $95.2mg\;kg^{-1}$; metropolitan sewage sludge, $22.9mg\;kg^{-1}$), molybdenum(metropolitan sewage sludge, $40.1mg\;kg^{-1}$; food company sludge, $16.8mg\;kg^{-1}$), selenium (fiber industry sludge, $28.1mg\;kg^{-1}$; leather industry sludge, $16.9mg\;kg^{-1}$; food company sludge, $15.9mg\;kg^{-1}$) were highest compare to the other organic wastes. Total PAHs contents were the highest in paper-mill manufacture($3,462ug\;kg^{-1}$), and among the 16 PAHs, naphthalene, phenanthrene, pyrene, fluoroanthene, Anthracene and acenaphthene were detected more clearly than others in all kinds of organic resources.

유기성 폐자원을 퇴비원료로서 재활용하는데 대한 규정에는 현재 유기물과 8종의 중금속 함량에 대한 기준만 있기 때문에 미량원소(붕소, 코발트, 몰리브덴 및 셀레늄) 및 유해 유기화합물(PAHs) 함량을 기준 항목으로 추가하기 위하여 전국 6 2개소에서 채취한 16종에 대한 성분분석을 실시한 결과는 다음과 같다. 붕소의 경우 피혁오니가 $154.2mg\;kg^{-1}$, 식품오니가 $57.1mg\;kg^{-1}$로 가장 높았고, 코발트는 공단지역 하수오니에서 $95.2mg\;kg^{-1}$, 대도시 하수오니에서 $22.9mg\;kg^{-1}$, 몰리브덴은 식품오니에서 $16.8mg\;kg^{-1}$, 대도시 하수오니에서 $40.1mg\;kg^{-1}$, 셀레늄은 섬유오니에서 $28.1mg\;kg^{-1}$, 피혁오니에서 $16.9mg\;kg^{-1}$ 그리고 식품오니에서 $15.9mg\;kg^{-1}$으로 가장 높았다. 유해 유기화합물 중 총 PAHs는 제지오니에서 $3,462ug\;kg^{-1}$로 가장 높았고, PAHs의 성분별 비교해 보면, naphthalene, phenanthrene, pyrene, fluoroanthene, anthracene 및 acenaphthene의 함량이 다른 화합물보다 현저히 높은 것으로 나타났다. 따라서 현재 우리나라에서 유기성자원의 퇴비원료로 활용에 대한 기준은 유기물함량과 중금속(8성분: Zn, Cu, Cr, Pb, Ni, Cd, As, Hg)으로 규제하고 있으나, 미량원소(B, Co, Mo, Se), 유해 유기화합물(PAHs)에 대한 보완연구를 통해 퇴비원료기준에 규제기준을 추가하여 선별체계를 확립한다면, 유기성 폐기물도 자원으로써 농업적인 재활용이 가능하다고 생각된다.

Keywords

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