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퇴적물의 영양염류 용출과 호기적 조건과의 상관성 분석 KCI 등재

Correlation of Releases of Nutrient Salts in Sediment with Vicinal Oxic Con

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한국환경과학회지 (Journal of Environmental Science International)
한국환경과학회 (The Korean Environmental Sciences Society)
초록

The aim of this paper is to correlate the release characteristics of marine and lake sediment with their vicinal oxic conditions. We performed lab-scale simulation experiments using field sediment and water in order to compare the release concentrations and the release rates one another. To provide a few different kinds of oxic environments we used natural air flow and some oxygen releasing compounds such as CaO2 and MgO2. In case of phosphates, in each oxic condition, removal of phosphorus via biological activity and that via salt precipitation with the metal ions lowered the release rates. The behavior of the nitrogen-origin salts seemed to greatly depend on the typical biological actions - growth of biomass, nitrification, and partial denitrification. Generally speaking, the control of releases of NH3-N, PO4-P, T-N and T-P was successful under the oxic conditions meanwhile COD, nitrates and nitrites were difficult to reduce the releases into the bulk water because of the considerable microbial oxidation. Based on typical diffusive mass transfer kinetics the changes of concentrations of the nutrients were computed for qualitative and quantitative comparisons.

목차
Abstract
 1. 서 론
 2. 재료 및 방법
  2.1. 시료준비 및 실험시약
  2.2. 퇴적물 및 수질의 이화학적 분석
  2.3. 퇴적물 용출특성 실험
  2.4. 용출의 수리학적 분석
 3. 결과 및 고찰
  3.1. 호기조건 부여에 따른 pH 및 ORP의 변화
  3.2. 호기조건 부여에 따른 COD 및 영양염류 농도변화
  3.3. 호수퇴적물
  3.4. 퇴적물 COD 및 영양염의 용출 동력학의 수리학
  3.5. 퇴적물의 COD 및 영양염의 용출율(속도)
  3.6. 호기성과 용출의 상관성 분석
 4. 결 론
 참 고 문 헌
저자
  • 조대철(순천향대학교 에너지환경공학과) | Daechul Cho (Department of Energy & Environmental Engineering, Soonchunhyang University)
  • 이은미(순천향대학교 에너지환경공학과) | Eun-Mi Lee (Department of Energy & Environmental Engineering, Soonchunhyang University)
  • 박병기(순천향대학교 에너지환경공학과) | Byungg, Park (Department of Energy & Environmental Engineering, Soonchunhyang University)
  • 권성현(경상대학교 해양과학대학 해양환경공학과(해양산업연구소)) | Sung-Hyun Kwon (Department of Marine Environmental Engineering and Institute of Marine Industry, Gyeongsang National University) Corresponding Author