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RISS 인기검색어
- 검색키워드
- 저자 : 安松燁 (검색결과 71 건)
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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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안송엽,심순섭,박승훈,권희태 원광대학교 2001 論文集 Vol.27 No.-
Process intensification without any increase in bed requires the development of fluidized bed mechanical resource as the basis for solutions to the process biological problems which result from the need to retain and control the attachment microbe, and for microbe recovery. The Wastewater treatment characteristics of the fluidized bed was filled with sand media and indirect aeration were studied experimentally. The endogenous decay coefficient and growth rate of microbe appealed on the biofilm thickness. Sand media concentration was 18% and upflow velocity 1.32cm /sec, endogenous decay coefficient kd was 0.025d-1 and growth rate of microbe's 0.122d-1. 본 연구의 공정은 상 안에서 어떠한 인자의 증가없이 미생물의 증대를 필요로 한다. 유동상의 기계적인 원인을 보완하고 공정의 생물학적인 문제를 해결하기 위해 부착미생물의 유지시키는 것과 제거 뿐 만 아니라 미생물의 재생에 관한 결과들을 고찰하였다. 유동상의 폐수처리특성은 모래 메디아와 간접포기를 이용함으로써 실험적으로 연구되었다. 자산화계수와 미생물의 증식율은 생물막의 두께에 따라서 다르게 나타난다. 모래 메디아 충전량을 18%로, 상향유속을 1.32cm/sec로 할 경우 kd는 0.025d-1와 증식율 0.122d-1이었다. 본 유동상법은 단위 미생물량당의 미생물 증식량을 이용하여 현장조건에 맞게 조절할 수 있는 하나의 영향인자로 판단된다.
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安松燁 圓光大學校 1980 論文集 Vol.14 No.2
The development of urban areas, advancement of industry and the excessive use of agricultural fertilizer and/or chemicals, which has now brought a great many problems by nourishing lakes and breaking the balance of an ecosystem in water. This research, through the physical, chemical and biological examination of the three lakes (Gu-I, Deog-Jin and Su-Deog) which are in the area of Jeon-Bug Province, reached the following conclusion about the water pollution of the lakes and its countermeasures. 1. Gu-I reservoir maintains the balance of an ecosystem mode of life with favorable conditions in the physical, chemical and biological circumstance. 2. Deog-Jin lake and Su-Deog lake have become not only unfit for the standard of water quality for the use of recreation but also excessive prosperity of algae because of high concentrations of phosphorous and Nitrogen compounds. Therefore the difference between dissolved oxygen and carbon dioxide during the day and night is noticeable. During the day, the shortage of carbon dioxide has caused the limited factor of primary production. The ecosystem mode of life falls in inequality by changing dissolved oxygen concentration between day and night.
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安松燁 圓光大學校 1983 論文集 Vol.17 No.2
The Box-Complex algorithm is an efficient procedure for determining the optimum design of an activated sludge wastewater treatment system. The procedure permits the use of nonlinear objective function, and nonlinear noncontinuous constraints. The optimal sizes for the unit processes are obtained directly from the algorithm along with the design variables. The objective function was chosen to minimize the sum of the capital costs, and the annual operation and maintenance costs. The results of the study show that θc,θ,r and Ess can be selected as the design variable for the design of aeration tank, primary settler, final settler, sludge return pump and sludge treatment facility. An example problem is given to clearly explain the proposed design procedure and to show that the procedure is superior to the previously used methods.
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안송엽,김황홍,소재철,권희태 圓光大學校 環境建設硏究所 1999 環境建設論文集 Vol.8 No.-
This paper aims to get rid of BOD and nitrogen in wastewater as the anoxic-aerobic fluidized bed. The process for the removal of nitrogen consists of nitrification and denitrification in two reactors. The estimated formula for Anoxic are Biomass concentration = -2079.898V^2 - 202.2029(H/A) + 1123, BOD removal = -0.00613HRT^2 + 0.4014HRT + 46.993 and NO_3-N removal = -0.0029HRT^2 + 0.1872HRT + 77.45. This paper has increased the removal efficiency of BOD and nitrogen and recurs to denitrification nitrogen treated water, uses to the organic matter among the first-order treatment water, also nitrification case is developed to anoxic-aerobic fluidized bed recurrent method, that is two cases method using the isolated alkali in the denitrification. The experimental values are similar to values of estimated formula. Therefore, this result is able to adapt the other cases.
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全鍾煥,李柱錫,蘇在喆,安松燁 圓光大學校 1987 論文集 Vol.21 No.2
本 硏究에서는 연구책임자의 學述的 硏究經驗을 토대로 하여 보다 나은 處理工程을 다음과 같이 개발하였다. 旣存의 糞尿處理場 1次處理工程인 好氣性消化槽를 接觸槽와 安定槽로 분리하고 2次沈澱池에서 배출되는 返送슬러지를 全部 安定槽로 流入시켜 安定化시킨후 接觸槽로 보내는 接觸安定法의 工程으로 改造하고 流入糞尿 1對 稀釋水8의 比率로 糞尿를 流入시키며 實驗考察한 결과 97%이상의 處理效率을 얻었고 惡臭가 거의 발생하지 않은 쾌적한 環境이 되었다. In this study, the researchers found the better treatment process of nightsoil treatment plant on the basis of the responsible researcher's academic experience. The first treatment process, that is, aerobic digester of the existing nightsoil treatment plant is separated into the contact tank and the stabilization tank. And all the return sludge which discharge from the final sedimentation tank is folloed in the stabilization tank and is kept the stabilization situation there Afterwards, it is sent to the contact tank. The researchers remodeled as these contact stabilization processes and put in the contact tank at rate of inflow nightsoil one to diluted water eight. The results of above practical experiences showed the effective treatment above 95 percents and the comfortable environment with few foul ordor.
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안송엽,정재균 圓光大學校 環境建設硏究所 1995 環境建設論文集 Vol.4 No.-
이 논문은 호기성 미생물에 의한 유동상 반응기 형태의 변화에 따른 설계에 영향을 미치는 주요인자 간의 상호관계를 파악하기 위한 연구이었다. 실험장치는 원통형 아크릴을 이용하여 용적이 각각 8ℓ인 반응기를 4개 제작하였다. 실험은 순환유량 및 media충전량을 제외한 일반적 실험조건은 BOD부하율 4.5㎏-BOD/㎥㎡ㆍd, 반응 온도는 28±0.5℃, pH는 6.5 ∼ 7.5, 수리학적 체류시간은 32분, 폐수 주입량 및 주입농도는 0.23ℓ/min 및 100㎎/ℓ로 일정하게 유지시켰다. 실험을 통하여 얻어진 결과는 다음과 같다. 1. 각 반응기의 형태, 즉 A/H比에 관계없이 최대의 처리효율을 보이는 media 충전량은 17%로 일정하게 하였다. 2. A/H比에 따라 최대 처리율은 96%∼94%로 나타나므로, A/H比가 처리율에 영향을 준다는 것을 알 수 있었다. 3. 순환유량이 동일한 경우, 총미생물량은 A/H比가 0.185일 때에 비해 A/H比가 2.96일 때에 최대 약 3배의 보유량을 나타내므로, A/H比가 부하량 결정에 주요인자 임을 알 수 있다. 4. Bioparticles의 합체현상으로 인한 처리율의 감소를 막을 수 있는 최소유량은 A/H比 2.96 일 때에 3.7 ℓ/min, A/H比 1.6일 때에 2.8 ℓ/min, A/H比 0.316일 때에 1.2ℓ/min, A/H比 0.185 일 때에 0.9ℓ/min 정도인 것으로 나타났다.
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