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

퇴적물의 영양염류 용출과 호기적 조건과의 상관성 분석

  • Cho, Dae-Chul (Department of Energy & Environmental Engineering, Soonchunhyang University) ;
  • Lee, Eun-Mi (Department of Energy & Environmental Engineering, Soonchunhyang University) ;
  • Park, Byung-Gi (Department of Energy & Environmental Engineering, Soonchunhyang University) ;
  • Kwon, Sung-Hyun (Department of Marine Environmental Engineering and Institute of Marine Industry, Gyeongsang National University)
  • 조대철 (순천향대학교 에너지환경공학과) ;
  • 이은미 (순천향대학교 에너지환경공학과) ;
  • 박병기 (순천향대학교 에너지환경공학과) ;
  • 권성현 (경상대학교 해양과학대학 해양환경공학과(해양산업연구소))
  • Received : 2011.01.14
  • Accepted : 2011.06.15
  • Published : 2011.07.31


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 $CaO_2$ and $MgO_2$. 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 $NH_3$-N, $PO_4$-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.


Marine and lake sediment;Oxic condition;Release characteristics;Oxygen releasing compound


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