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RISS 인기검색어
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- 저자 : 박남배 ( Nam-bae Park ) (검색결과 3 건)
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Pilot scale 2단 혐기성 소화조를 이용한 음식물쓰레기와 하수슬러지의 혼합처리
박남배(Nam-bae Park),이헌모(Heon-Mo Lee),이병헌(Byung-Heon Lee) 유기성자원학회 1999 유기물자원화 Vol.7 No.2
최근에 음식물쓰레기의 증가에 따라 폐기불의 처리가 현대사회의 큰 문제로 되었다. 본 연구는 음식물 쓰레기와 하수슬러지 흔합물의 2단 혐기성소화조에 의하여 소화익 가능성을 검토할 목적으로 수행되었다. 음식물쓰레기와 하수슬러지를 1:9의 비율로 하여 파이롯트 2탄 소화시스템을 사용하여 현장에서 운전하였으며,체류기간은 20일로 유지했다. 3.03kg TCOD/m'day의 유기물 부하에서 COD와 VS 제거효율이 57.7%와 47.7%를 보였으며. 가스 생성율과 메탄의 함량은 0.4m'/kg vs.day와 65.3%로 나타났다. 이러한 결과로 부터 하수슬러지와 음식물쓰레기의 흔합처리가 효과적인 것으로 밝혀 졌다. Recently. the treatment of that wastes according to increase of food waste has been a great problem of modern society for long time. This study was aimed to evaluate possibility for food waste and sewage sludge mixture treatment using pilot scale two-phase anaerobic digester. Pilot scale two-phase anaerobic digestion system was performanced at 1 9 mixture ratio of food waste and sewage sludge in field. The detention time of digester was 20days. The average COD and VS removal efficiencies in organic loading rate 3.03kg TCOD/ m'-day were 57.7 and 47.7%. and the gas production rate and methane content were 0.4 mYkg VS-day and 65.3%. respectively. 1'8. VS and VS/TS(%) of mixing tank were 4.44%. 2.59% and 58.34%. respectively and 1'8. VS and VS/TS(%) of digester in steady state were 3.32%. 1.39% and 41. 90%. respectively. Through this study. it was possible to accomplish effective mixture treatment of the sewage sludge and food waste.
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이승원 ( Seung-won Lee ),박남배 ( Nam-bae Park ),이상용 ( Sang-yong Lee ),박성현 ( Sung-hyun Park ),김정권 ( Jung-kwon Kim ) 한국환경기술학회 2012 한국환경기술학회지 Vol.13 No.4
본 연구는 경상남도 사천군 주위 산간지역의 수리학적 특성 및 지하수위 변동 등의 인자를 이용하여 지하수 흐름 및 매립장 침출수 이동을 GMS 7.0모델을 통해 재현하고 미래에 예상되는 변화를 예측하는 것이 목적이다. 대상영역은 1,510m×1,270m로서 151column과 127row로 세분화하였다. 또한 Cl<sup>-</sup>이온 4,000mg/L를 매립장 운영기간(23년) 동안 연속적으로 발생한다고 가정하여 모델링 하였으며, 오염물질 거동을 파악하기 위해 매립장 인근 4개소의 감시정을 설치 한 후 오염물질 농도를 관측하였다. 본 모델링 지역의 남서 및 북서방향은 산계로 이루어져 있어 남동방향으로 지하수가 유동하는 양상을 보이고 있다. 이때 Cl<sup>-</sup> 400mg/L가 매립장에서 유출되는 4개의 감시정 중 COW2(남동방향)최대 539.84mg/L로 발생되었으며, 이는 다른 3방향의 감시정에 비해 약 2.6~3배 높은 것으로 나타났다. 결과적으로 산간지역의 경우 연직 차수벽 훼손 시 지하수 유동에 따라 오염물질이 빠르게 확산되므로 지하수 거동 특성이 매우 중요하다. The purpose of this research is to forecast the future variation and to reproduce for movement of leachate landfill and ground water flow by means of using ground water head and hydraulic character of mountain area around in Gyeongsangnam-do Sacheon -gun through GMS 7.0 Model. This domain area is 1510 m × 1,270 m which is subdivided into 151 column and 127 row. It is modeled that 4,000mg/L Cl<sup>-</sup> ion is continuously discharged during the landfill operating period for 23 years. In order to observe Cl<sup>-</sup> ion, four monitoring systems were installed around the landfill. According to the result of Modflow, as the modeling area for southwest and northwest is consisted mountainous district, ground water is flowing to southeast direction. At this time, Cl<sup>-</sup> ion the outflow from the landfill was observed max 539.84 mg/L at COW2(southeast) monitoring system. It was surveyed that Cl<sup>-</sup> ion concentration is roughly 2.6~3 times higher, compared with other monitoring systems(COW1, COW3 and COW4). As a results, mountains area is very important to consider the ground water flow characteristics when vertical impermeable wall is torn specially. Since, the landfill leachate flows very fast with ground water flow.
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질소 및 인 제거를 위한 기존 폐수처리장 개선방안에 관한 연구
양병수,박남배,이재관 한국물환경학회 1990 한국물환경학회지 Vol.6 No.1
This research is aimed to suggest any possibilities of upgrading nitrogen and phosphorus removal in the exsisting activated sludge process with simple modification. The comparition between a partially aerated (A/O) and fully aerated activated sludge process was made at different mixing and aeration time, and sludge recycle to evaluate the effect of compartalized reaction tank on COD, nitrogen and phosphorus removal. The COD removal efficiency showed up to 95% in the A/O process as well as fully aerated activated sludge process. In the A/O process the substrate removal efficiency remained constant irrespective of anoxic/oxic reactor retention time ratios. Nitrogen and phosphorus removal efficiency in the A/O process was higher than that in the fully aerated activated sludge process. The efficiency in the A/O process was strongly affected by recycling rate. The total nitrogen removal efficiency increased with increasing recycle rate in the range of 25% to 200%. Phosphorus removal efficiency in this process trended to increase as the anoxic reactor volume in the system increased. Sludge settleability improved greatly as the first reactor volume to total reactor volume decreased.
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