Fundamental Research on Ecofriendly Treatment of Dredged Marine Sediments using BM-S-1

Most harbor areas in the country have been polluted by incoming wastewater from various sources, and this makes formation of deep contaminated sediment layers on the seafloor. The contaminated sediments should be digged out to keep harbors safe and navigable to increasingly large ships. The dredge wastewater generated during the dredging operation, however, contaminates the marine environment again. This study investigated potential of mixed effective microorganisms, BM-S-1, for treating organic fine materials(less than 10 μm) contained in the dredge wastewater. This study also evaluated economic feasibility of the environment-friendly dredging using BM-S-1, and after deriving optimum design parameters, provided a design basis for the biological treatment process using BM-S-1.목 차 목차 1 List of Table 3 List of Figures 4 Abstract 5 1. 서론 6 2. 문헌고찰 7 2.1 해양준설토의 발생현황 7 2.2 해양준설토 처리 10 2.3 생물학적 질소인 고도처리 12 2.3.1 생물학적 질소 처리 12 2.3.2 생물학적 인 처리 19 2.4 복합미생물제제(BM-S-1)의 특징 21 3. 실험 25 3.1 실험장치 25 3.2 시료 28 3.3 운전방법 29 3.4 분석방법 32 3.4.1 반응기 내 미생물 관찰 32 3.4.2 PCR-DGGE 기법에 의한 RCM 시스템 내의미생물 군집 분석 33 3.4.3 시험항목 및 측정방법 35 4. 결과 및 고찰 36 4.1 미생물제제 동정 36 4.2 처리효율 평가 39 4.2.1 유기물 제거효율 평가 39 4.2.2 질소 제거효율 평가 41 4.2.3 인 제거효율 평가 42 4.3 Lab scale 반응기의 미생물 분포 특성 43 4.3.1 Rarefraction curve 분석 43 4.3.2 Species richness 분석 44 4.3.3 Phylum composition 분석 45 4.3.4 Genus composition 분석 46 4.3.5 Species composition 분석 47 4.3.6 미생물 군집 분석 48 5. 결론 51 참고 문헌 5