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.

• 문병현(창원대학교 환경공학과) | Byung-Hyun Moon (Dept, of Environmental Engineering, Chang-Won National University)
• 이택순(창원대학교 환경공학과) | Taek-Soon Lee (Dept, of Environmental Engineering, Chang-Won National University)
• 서정윤(창원대학교 환경공학과) | Jeoung-Yoon Seo (Dept, of Environmental Engineering, Chang-Won National University)
• 서희정(창원대학교 환경공학과) | Hee-Jung Seo (Dept, of Environmental Engineering, Chang-Won National University)