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Enviro-Chemical Changes in Shoreline Sediment by MgO2 for Enhancement of Indigenous Microbial Activity

토착균주 활성화를 위한 산소발생제 MgO2 투입에 의한 연안저질의 이화학적 성분 변화 관찰

  • Bae, Hwan-Jin (Department of Marine Environmental Engineering and Institute of Marine Industry, Gyeongsang National University) ;
  • Cho, Dae-Chul (Department of Energy & Environmental Engineering, Soonchunhyang University) ;
  • Kwon, Sung-Hyun (Department of Marine Environmental Engineering and Institute of Marine Industry, Gyeongsang National University)
  • 배환진 (경상대학교 해양과학대학 해양환경공학과(해양산업연구소)) ;
  • 조대철 (순천향대학교 에너지환경공학과) ;
  • 권성현 (경상대학교 해양과학대학 해양환경공학과(해양산업연구소))
  • Received : 2010.02.05
  • Accepted : 2010.03.31
  • Published : 2010.05.31

Abstract

Rapid industrialization has brought Nam-Hae area serious environmental problems associated with released oil and other hydrocarbons. In this work, in order to enhance the quality of the shoreline sediment we made enviro-chemical analyses of its substances, TPHs and microbial growth after treating with oxygen releasing compound(ORC) such as $MgO_2$. Total organic compound(TOC) was reduced from 33.45% to 25.1~31.08% meanwhile COD decreased from 27.5~28.9mg/$g{\cdot}dry$ to 19.9~26.1mg/$g{\cdot}dry$ for input of 2~10% $MgO_2$ in 20days. For 10% $MgO_2$ input, TP and TN were reduced by 13.3% and 18.8%, respectively. Most of all TPH was decomposed by max. 42.4% in 21days, and the total viable count of microbes was found to be exponentially increased by 75.9%.

Keywords

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