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KMID : 1024520100190050617
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Journal of the Environmental Sciences
2010 Volume.19 No. 5 p.617 ~ p.625
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Enviro-Chemical Changes in Shoreline Sediment by MgO2 for Enhancement of Indigenous Microbial Activity
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Bae Hwan-Jin
Cho Dae-Chul
Kwon Sung-Hyun
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Abstract
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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 MgO2. Total organic compound(TOC) was reduced from 33.45% to 25.1～31.08% meanwhile COD decreased from 27.5～28.9mg/g·dry to 19.9～26.1mg/g·dry for input of 2～10% MgO2 in 20days. For 10% MgO2 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%.
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KEYWORD
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Sediment, Oxidizing agent, Total petroleum hydrocarbon, Magnesium peroxide, Biostimul
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