• 유기물자원화
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• 제3권2호
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• pp.97-102
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• 1995

환경기초시설에 대한 시민의 의식을 알아보기 위하여 설문조사를 실시하였다. 대부분의 시민이 쓰레기 처리문제의 심각성을 인식하고 있었으며 퇴비화시설을 가장 많이 지어야 한다고 느끼고 있었다. 시민들이 가장 싫어하는 시설은 매립장이었고 분뇨처리장, 소각장, 퇴비화시설의 순이었다. 집과의 허용이격거리는 매립장은 4km 이상, 소각장과 퇴비화시설은 2km 이상, 하수처리장은 1km 이상 떨어져야 한다고 응답한 사람들이 많았다. 지역주민이 원하는 보상정도는 이사비용 + 토지가 + 불편 감수비용 (토지 및 건물가격과 비등한 금액) 을 원하는 사람이 가장 많았다. 처리시설에 대한 수용도에 있어서는 완벽한 처리시설이라도 30% 정도의 응답자가 허용을 하지 않겠다고 응답하였다.

• 한국실내디자인학회논문집
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• 제24권3호
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• pp.156-164
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• 2015

Nursing Homes do not have a defined standard in the space area nor does it have a detailed standard facility requirement by law. This can possibly lead to the deterioration of the facility and the system. This directly affects the medical treatment space area within the nursing home. The medical treatment area provides medical treatment to seniors and this is where the seniors get most of their daily services. Therefore, this is research is about the study of the space area of the medical center and the ratio trend of the space area for the medical treatment facility located in senior nursing homes. Ten facilities have been selected in this study to analyze the correlation factors between space area and its trends. The analysis performed includes the conditions relating to the area and what affects the center. We have followed up with a proposal for improvement of the facility and area configuration for the medical treatment facility. Based on the analysis, the following conclusion can be made: First, the senior welfare centers are mostly used as a residence purpose followed a temporary stay of residence facility for the seniors. Second, research indicates that the bigger the facility, nursing and public functions took a larger portion of the space area compared to other services within the senior welfare centers. Third, the study shows the management space area took up about 1%~6% of the entire medical center within the nursing home which is a narrow space area because of the integrated management. Fourth, analysis based on the trend in the time-series indicate after the adoption of the system, there is a continued decline in the space area of nursing, management and public areas. Lastly, since before and after 2008, the space area composition of the nursing facility shows a continuous decline in our study. We can safely conclude that the revised senior welfare act's construction plan has an effect in the facility and is effectively working to meet its requirement. Therefore, the revision of the law is required to reflect the social needs of the residents.

• 한국환경보건학회지
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• 제24권1호
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• pp.62-69
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• 1998

It has been studied that the measurement of odor component emission at confectionery manufacture. The objects of this study were to investigate reduction of offensive odor. The survey effects of odorous materials are presented as follows. The countermeasure of operating process is to minimize sludge sediment in each unit facility. Especially, in summer, we have to clean the sludge frequently, because anaerobic decomposing is likely to occur easily. The sludge or scum from sedimentation tank pond, and floating tank should be treated quickly. We should avoid overloading operation. In the case of overloading, dissolved oxygen should be increased, the quality of wastewater input should be decreased. When dried cakes from condense tank or floating tank are left in treatment plant, we should cover, to prevent diffusion of smell with masking materials. The seasonal condition of operating should be fixed and the kind of coagulants should be changed because the wastewater in each season have different loading rates and organic materials. Odorous materials are very sensitive to the seasonal temperature variation. Especially, when the amount of rainfall is small and the high temperature of maintenance in long periods, air diffusion rate is large, so odorous materials can make great effect on surroundings comparision with other periods. To reduce odorous gas, as short term method, we had better take ceramic addition method. Especially, in summer we should take ceramic addition method. Also, as long term method, the size of wastewater treatment facility is the most important in the normal operating of wastewater treatment facility. But wastewater treatment facilities in this factory are too old, treatment process is old fashion, and the size is too small. So, large wastewater quantity to treat in summer. As results, the expansion of wastewater treatment facility and the process of improvement are required. Restriction level of odor was exceed. As it is overloaded in summer, the basis cause of odor is that the size of wastewater treatment facility is small. The prediction of air quality equilibrium density variation show that the odorous materials from working place are Amine materials whose smell strength is about 2.5(a little strong degree). We can suppose that in summer is sensitive to temperature variation, smell strength is larger as to reduce the origin of odor. We must expand wastewater treatment facility and improve the process A.S.A.P.

• 한국습지학회지
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• 제11권2호
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• pp.9-16
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• 2009

본 연구는 인공습지 유출수를 추가처리하기 위해 다양한 재료를 이용한 추가처리시설의 적용가능성을 분석하였다. 석문담수호 유입부에 설치된 인공습지 중 무식재구, 갈대식재구, 부들식재구의 하단 배수로(폭 0.3m, 수심 0.35 m)에 각각 제강슬래그, 활성탄, 굴폐각을 이용해 1.0 m 길이로 추가처리시설을 설치하였으며, 각 후 처리시설별로 유입유량을 다르게 적용하였다(제강슬래그 63 $m^3$/day; 활성탄 19 $m^3$/day; 굴폐각 81 $m^3$/day). 제강슬래그, 활성탄, 굴폐각의 COD 처리율은 각각 6 %, 24 %, 1 %로 나타났으며, 제거량은 32, 30, 5 g/day로 나타나, 모든 추가처리시설에서 유기물제거에 효과적인 것으로 나타났다. T-N과 T-P의 제거효율은 활성탄에서 24 %와 4 %로 효과적이었으나, 제강슬래그 및 굴폐각에서는 효과가 없는 것으로 나타났다. 이상의 결과로부터 추가처리시설을 상대적으로 영양물질제거에 효과적인 인공습지와 연계하여 운영할 경우 영양물질 및 유기물을 효과적으로 제거할 수 있을 것으로 판단된다.

• 유기물자원화
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• 제28권2호
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• pp.31-40
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• 2020

국내 개인하수처리시설은 불량제품의 유통과 부실시공의 우려가 끊이지 않아 오수처리시설의 계획 및 설계에 적용 가능한 단위공정별로 최소한의 기준은 필요할 것으로 판단된다. 본 연구에서 살펴본 운영실태 분석결과의 문제점 및 필요사항은 1) 개인하수처리시설 관리감독자의 교육 강화, 2) 오수처리시설 운영관리 미흡, 3) 하수처리구역 외 2 ㎥/day 미만 시설의 오수처리시설 의무화 검토, 4) 음식점 오수처리시설에 대한 관리방안 필요, 5) 기술검토결과 부적정 시설에 대한 개선안 마련이 필요하다. 또한 국내·외 개인하수처리시설 관련 지침 및 자료 등을 조사·분석하여 설계·시공 및 유지관리 가이드북을 마련할 필요성이 요구된다.

• 한국원자력학회:학술대회논문집
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• 한국원자력학회 2005년도 추계학술발표회
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• pp.169-170
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• 2005

• 한국태양에너지학회:학술대회논문집
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• 한국태양에너지학회 2009년도 추계학술발표대회 논문집
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• pp.342-349
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• 2009

The purpose of this study is to estimate efficiently an odor dispersion from waste treatment facility for a crematory and a neighborhood facility, then propose planning, a location of an opening or the arrangement of the trees. Hence, offer a comfortable environment for a resident. For this, first the research data about estimating odor dispersion from waste treatment facility and odor are analyzed, then research an ingredient, characteristic, a direct effect for human and a method of measurement. Second, with on-site survey, check odorimetry and the source of odor dispersion, then apply this to the boundary condition of CFD simulation. Third, analyse by the hour for the 2008 standard weather data of Cheon-an, then apply summer data that odor dispersion is active, winter data relatively slow and an annual mean velocity and wind to the simulation. Even if a crematory and neighborhood facility located on south and north from waste treatment facility are at the low rate, the south and north wind will be applied to the simulation. Fourth, with CFD simulation result, predict an odor dispersion, then propose a solution which is considered an odor dispersion, a location of an opening and the arrangement of the trees. Consequently, this study will have an effect on an environment of a resident.

• Journal of Microbiology and Biotechnology
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• 제12권4호
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• pp.699-701
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• 2002

The current study demonstrates the ability of the marine cyanobacterium Oscillatoria willei BDU130511 to disinfect raw sewage. Within a holding time of 3 h under laboratory conditions, the organism drastically reduced in the total bacterial and coliform counts at various pH levels, in both unbuffered and buffered sewage, thereby suggesting a potential role for cyanobacteria in wastewater treatment.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2003년도 하계학술대회 논문집 D
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• pp.2254-2258
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• 2003

In recent years, the case to install small water treatment facility to every local area has increased. A key issue in the successful implementation of the control systems for the water treatment plants is the choice of control architecture. Within the framework of distributed control system(DCS), this paper presents a new development of intelligent control module and its novel application to open control architecture for water treatment plants. This control system so called NCS(Network Based Control System) with standard networks system with LonTalks protocol of ANSI/EIA 709.1, regulatory control function and information dispatch function has suitable functionality to operate these distributed water treatment facility effectively. This paper describes the case where NCS is applied for the filters system in water treatment facility of Heong Sung area.

• 환경위생공학
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• 제8권2호
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• pp.65-84
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• 1993

This study reviewed the current status and problems of sewerage system in Korea and then proposed possible methods to correct the problems. Also, evaluation of future development in sewerage system is included. It can be summarized as follows : 1. Investment in sewerage system is relatively low . 0.23% of GNP, Considering that the investment portion is 0.35% in OECD and 0.63% in Japan, it should be increased further. 2. The reasons wily the investment in sewerage system is low can be ' (1) Low priority is given to the investment in sewerage system. Local government builds and operates its own wastewater treatment plant. Local government as well as residents prefer to invest their money in roadwork, housing and parks to in wastewater treatment facilities because of greater investment effects. (2) Besides capital investment, more maintenance cost is needed for sewerage system. Proper operation of wastewater treatment facilities requires a well-trained operator. Because of public conception that operation of wastewater treatment facility is a dirty job, it is difficult to find a well-trained operator. (3) It is difficult to estimate the effect of sewerage system (4) Cost required to build and maintain wastewater treatment facility should be paid by people, who benefit from the facility. People to benefit are sometimes different from people to pay. 3. Advanced treatment is necessary to protect the bay aura and raw water source as well as to prevent eutrophication of lakes and ponds. 4. Wastewater treatment facility were mainly build in big cities during the decade of 1980. Followings should be solved first to expand the facilities. (1) Rapid repair and construction of sewer. (2) Technical development of wastewater treatment . Prevention of efficient and economical wastewater . Development of efficient and economical wastewater treatment techniques . Development of high-efficiency treatment using bioreactor . Reuse of wastewater treatment plant effluent (3) Sludge treatment and disposal . Composting of sludge cakes . Development of techniques to reduce the volume of sludge cake : incineration and reuse of sludge ash and slag. (4) Utilization of wastewater treatment facilities . Construction of community parks or sports families(ie, on the tops of the covered aeration tanks and sedimention tanks) Construction of wastewater treatment facilities under ground and of parking facilities and community parks above ground. (5) Education of wastewater treatment personal.