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      저자 : 서희정 ( Byung Hyun Moon (검색결과 2 건)
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        폐굴껍질을 이용한 침적식 생물막법에 의한 폐수처리

        문병현,이택순,서정윤,서희정 ( Byung Hyun Moon,Taek Soon Lee,Jeoung Yoon Seo,Hee Jung Seo ) 한국물환경학회 1997 한국물환경학회지 Vol.13 No.3

        This study was conducted to use waste oyster shell as biofilm media for biological wastewater treatment. The comparison between the activated sludge and the submerged biofilm process with oyster shell media (5% of reactor volume) for domestic sewage treatment was made at various hydraulic retention times. The effluent quality of the submerged oyster shell reactor was more stable than that of activated sludge reactor. The BOD removal efficiencies of the submerged process was above 80% at the various organic loading rates of 0.12∼0.55㎏BOD/㎥/day. The COD and SS removal efficiencies of the submerged process were higher than that of the activated sludge process. Also, TKN and T-P removal efficiencies of submerged process were higher than that of the activated sludge process. The comparison between the submerged biofilm process with oyster shell media of 10% and 18% was made at various loading rates. The hydraulic retention time was fixed to 6hr. The BOD, COD_(Cr) removal efficiencies of 10% and 18% were above 80% at organic loading rates of 1.0㎏ BOD/㎥/day and 1.5㎏COD_(Cr)/㎥/day but the removal efficiencies of 18% reactor decreased as the organic loading rates were increased. The TKN removal efficiencies of 10% and 18% were above 70% at organic loading rates of 0.2㎏ TKN/㎥/day. However, the removal efficiencies of 18% reactor decreased at the higher loading rates. The phosphorus removal efficiencies of both reactors showed similar removal efficiencies.

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        굴패각을 담체로 사용한 침적고정 생물막공법 및 예측

        문병현,이택순,서정윤,서희정 한국환경과학회 1997 한국환경과학회지 Vol.6 No.6

        This study was conducted to use oyster shell as media for biological wastewater treatment. The comparison between the removal efficiencies of the activated sludge and the submerged biofilm process with oyster shell media (5% of reactor volume) for domestic sewage treatment was made. The contaminant removal efficiencies of the submerged process were higher than that of the activated sludge process. And the removal efficiencies of the submerged biofilm process with oyster shell media of 10% and 18% were investigated at various loading rate. The removal efficiencies of 10% were higher than that of the 18% during the experimental period. The effluent concentration from the submerged biofilm process using oyster shell media was prediceted by the Stover-Kincannon model.

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