Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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A Study on Anaerobic Release Characteristics of Marine Sediment and Effect of CaO2, an Oxygen Releasing Compound

해양 퇴적물의 혐기적 용출특성과 이에 미치는 산소발생제 CaO2의 영향에 대한 연구

  • Kwon, Sung-Hyun (Department of Marine Environmental Engineering/Institute of Marine Industry, Gyeongsang National University) ;
  • Cho, Dae-Chul (Department of Energy & Environmental Engineering, Soonchunhyang University)
  • 권성현 (경상대학교 해양환경공학과(해양산업연구소)) ;
  • 조대철 (순천향대학교 에너지환경공학과)
  • Received : 2010.07.20
  • Accepted : 2010.10.15
  • Published : 2010.10.31
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Abstract

We studied the release characteristics of the marine sediment which could facilitate sea eutrophication through some lab-scale simulation experiments. Environmental indicators such as pH, ORP(oxidation reduction potential), nitrogens, and phosphates were measured in order to calculate the corresponding release rates. $CaO_2$, an oxygen releasing compound was used to determine how it would effect on the natural process of sedimental release. COD, ammonia nitrogen, phosphorous compounds were less released under the oxic environment caused by $CaO_2$. This basic data will help developing methodology for reducing marine eutrophication which may be initiated by the sedimental release.

실험실 규모의 모사 실험을 통하여 해양 부영양화를 촉진하는 퇴적물의 용출 특성을 연구하였다. 즉 pH, ORP, 질소성분, 인성분 등 주요 환경인자를 분석하고 그에 따른 용출율을 계산하였다. 또한 산소발생제인 과산화칼슘을 이용하여 자연적 용출의 제어효과를 분석하였다. 산소발생제 처리에 따라 호기적 조건으로의 퇴적토 환경변화가 일어났으며 COD, $NH_3$-N의 용출율이 감소하고 질산화 촉진으로 NOx 성분은 증가하였다. 총인과 인산염인도 Ca 이온의 불용화 기작에 의거 감소하였다. 이에 따라 퇴적토의 용출로 인한 해양 부영양화 억제 방법론을 정립하고자한다.

Keywords

References

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