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- 저자 : 권희태 ( Kweon Hee-tae ) (검색결과 6 건)
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안송엽 ( Ahn Song-yeob ),김용목 ( Kim Yong-mog ),권희태 ( Kweon Hee-tae ),김두정 ( Kim Du-jung ) 한국환경기술학회 2000 한국환경기술학회지 Vol.1 No.2
석가공폐수 처리는 처리 과정에서 약품응집제를 사용하고 있기 때문에 환경오염 및 생태계의 변화에 많은 문제점을 유발하고 있다. 본 연구에서는 경사분리기를 개발 제작하여, 석가공폐수처리에 대한 처리특성을 규명하고자 COD, SS, 탁도를 분석하였으며, 실험결과는 유입수량 0.3 ㎖/sec의 경우 회전속도 3500rpm에서 COD제거효율 86.92%~90.54%, SS제거효율 97.56%~98.53%이었고, 유입수량 0.4㎖/sec의 경우 회전속도 3500rpm에서 COD제거율효율 83.11%~89.46%, SS제거효율 96.33%~97.07%를 나타내었다. 탁도는 유출수에서 220~350NTU, 제거효율 98.24%~99.11%로 나타냈다. The present treatment system of stone wastewater cause various environmental pollutions in ecosystem due to the fact that it uses chemical coagulants in the treatment process. In this paper, we developed and manufactured the decanter and then analysed the removal retes of COD, SS and turbidity to reveal the treatment characters according to stone wastewater treatment. As a result experiment showed COD removal rete was 86.92%~ 90.54% and SS 97.56%~98.53% when the feed velocity was 0.3㎖/sec and rotational speed Was 3500rpm. On the other hand, It showed COD removal rate is 83.11%~89.46% and SS 96.33%~97.07% when the feed velocity was 0.4㎖/sec and rotational speed 3500rpm. Turbidity showed 220~350NTU, removal rate was 98.24%~99.11% in effluent water.
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안송엽 ( Ahn Song-yeob ),김환홍 ( Kim Hwan-hong ),권희태 ( Kweon Hee-tae ) 한국환경기술학회 2000 한국환경기술학회지 Vol.1 No.1
본 연구는 유동상의 원리를 이용하여 무산소-호기조의 유기물과 질소제거에 미치는 영향을 분석 연구하였다. 두 개의 반응조는 질산화와 탈질화를 하기 위하여 생물학적 유동상을 설계에 이용하였다. 실험 결과 순환비는 무산소조 30과 호기조 40이 최적조건이 되는데, 순환비가 DO 농도의 증감과 관련되어 유기물이 제거됨을 보여주었다. 무산소조의 알카리도 생성량 80mg/ ℓ, 호기조의 카리도 소비량 160mg/ ℓ 에서 좋은 처리효율이 나타났다. 이것은 무산소조에서 탈질화 반응이 원활히 일어나게 되는데, 이는 질산화 반응보다 일반적으로 pH에 덜 민감하기 때문인 것으로 판단되었다. The study is analyzed to effecy organic matter and nitrogen removal of anoxic-aerobic reactor by using principle of fluidized bed. Two cases are presented which can be used in the design of biological fluidized bed for the nitrification and the denitrification. The results obtained through the experiments were as follows. Recycle ratio are condition of optimum at Anoxic reactor 30 and Aerobic reactor 40 respectively. Recycle ratio is showed to removal of organic matter that is relatively more or less of DO concentration. Treatment efficiency is showed a good alkalinity production 80mg/ℓ of Anoxic and alkalinity Consumption 160 mg ℓ of Aerobic. Nitrification reaction become to harmonious in aerobic Reactor. It is less sensitive to pH then denitrification reaction.
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안송엽,권희태 圓光大學校大學院 2000 論文集 Vol.24 No.-
유동상은 반응기 형태의 변화에 따라 설계인자 및 운전 효율이 크게 변화하는 데, 효율적 운전을 위해서는 영향인자 간의 상호관계를 파악하는 것이 대단히 중요한 문제이다. 미생물막의 형성은 상향유속의 영향이 큰 것으로 나타났으며 최적의 상향유속은 1.17cm/sec∼1.32cm/sec로 나타났다. 각 반응기의 형태, 즉 A/H비에 관계없이 최대의 처리효율을 보이는 media 충전량은 18%이었고, BOD 부하 4.5kg-BOD5/㎥·d에서 상향유속은 1.32cm.sec이었다. 1.17cm/sec이하의 낮은 상승유속에서는 처리효율을 저하시킬 수 있는 bioparticles의 합체현상이 발생함을 알 수 있었다. A/H비에 따라 최대 처리효율은 94∼92%로 나타나므로, A/H비가 처리율에 영향을 준다는 것을 알 수 있었다. Bioparticles의 합체현상으로 인한 처리율의 감소를 막을 수 있는 최소유량은 A/H비에 따라서 다르게 나타난다. Process intensification without any increase in bed requires the exploitation of fluid mechanical phenomena as the basis for elegant solutions to the process engineering problems which result from the need to retain and control the immobilized biomass, and for biomass recovery. The fluidized bed biological reactor provides a solution to these needs. The wastewater treatment characteristics of the fluidized bed was filled with sand media. Indirect aeration were studied experimentally. The optimal range of velocities was 1.17cm/sec∼1.32cm/sec, and under the BOD loading condition of 4.5kg-BOD5/㎥·d, the media concentration appeared to 18% and surface upflow velocity also 1.32cm/sec for the maximum BOD removal. The BOD loading and F/M ratio condition of some of the 'steady-state' reactor, a degree would be expected. The medium effluent unfiltered BOD5 was 92%∼94%, at an HRT of 32 minutes.
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안송엽,권희태,김두정 圓光大學校 環境建設硏究所 2000 環境建設論文集 Vol.9 No.-
Process intensification without any increase in bed requires the exploitation of fluid mechanical phenomena as the basis for elegant solutions to the process engineering problems which result from the need to retain and control the immobilized biomass, and for biomass recovery. The fluidized bed bilogical reactor provides a solution to these needs. The wastewater treatment characteristics of the fluidized bed was filled with asnd media. Indirect aeration were studied experimentally. The optimal range of velocities was 1.17㎝/sec∼1.32㎝/sec, and under the BOD loading condition of 4.5㎏-BOD_5/m^3·d, the media concentration appeared to 18% and surface upflow velocity also 1.32㎝/sec for the maximum BOD removal. The media effluent unfiltered BOD_5 was 92%∼94%, at an HRT of 32 mintes.
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안송엽,김환홍,권희태 圓光大學校 環境建設硏究所 1998 環境建設論文集 Vol.7 No.-
On the treatment of stone-processing wastewater an achievement case study and literature cited do not exist in the world, so the study put many hours in it. The conclusions are obtained as follows: 1. At the study development treatment plant of stone-processing wastewater are indicated few power rate, easy maintenance management and highly treatment efficiency. 2. Efficiency of agitation lead to decrease in put of polymer coagulation so economical is good.
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안송엽,김환홍,권희태 한국환경과학회 1999 한국환경과학회지 Vol.8 No.1
Process intensification without any increase in bed requires the exploitation of fluid mechanical phenomena as the basis for elegant solutions to the process engineering problems which result from the need to retain and control the immobilized biomass, and for biomass recovery. The fluidized bed biological reactor provides a solution to these needs. The wastewater treatment characteristics of the fluidized bed was filled with sand media. Indirect aeration were studied experimentally. The researcher was filled with sand particle size(0.60∼0.42mm) in three reactors with different section area(A)/height(H), in the state BOD loading 4.5㎏-BOD_5/㎥·d, and under the fixed state of hydraulic retention time for around 32 minutes.
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