• 유기물자원화
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• 제27권2호
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• pp.5-12
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• 2019

과거 산업화와 경제발달 과정에서 증가하였던 폐기물이 일부 단순 투기되거나 비위생 매립시설에 최종 처분된 사례가 있다. 매립지 사용종료 및 신규 매립지 확보를 위해 사용이 종료된 비위생매립지 정비 사업들의 시행과 폐기물의 자원화 정책이 강화되면서 매립억제 및 기매립 자원의 재활용을 위한 매립폐기물의 순환이용과 순환형매립지 조성사업이 확대되고 있다. 폐기물혼입굴착물은 순환형매립지의 조성, 매립지 정비사업 및 각종 건설공사 등 다양한 굴착 현장에서 발생되며 자원의 유효이용과 폐기물의 적정처리를 통한 관리가 필요하다. 본 연구에서는 택지개발, 순환형매립지 정비, 비위생매립지 정비 등 굴착 선별 공사가 진행 중인 사업장 3개소를 대상으로 폐기물혼입굴착물의 선별을 통한 선별가연물, 선별토사의 물리화학적 조성 및 특성분석을 통해 선별회수자원 및 잔재물의 특성을 검토하였다. 그 결과, 굴착 선별된 가연물의 부착토사 및 불연성분으로 인해 소각처리 시 운영효율 저하 혹은 고형연료 제조 시 제품의 품질기준을 충족하지 못할 수 있으므로 선별가연물의 불연물 함량을 관리할 필요가 있다. 선별토사의 경우, 매립된 폐기물의 유기성분이 토사 중에 잔존할 수 있으므로 굴착 선별된 토사류의 적정 재활용을 위해서는 선별토사의 유기물질을 관리하여야 할 것으로 판단되었다.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2011년도 추계 학술논문 발표대회
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• pp.117-118
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• 2011

South Korea is a ninth greenhouse gas emission nation in the world(2007) and is certainly to perform a duty to conduct reduction role by the Kyoto Protocol in 2013. waste concrete produced in the country is 45 million tons per year and these two issues are being came to the fore as major problems of society. However, if it utilizes wet carbonation system carbon using carbon dioxide and waste concrete as raw material it can expect effect of environmental protection and resource recycling. Furthermore, it can exploit another industry production.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 1997년도 봄 학술발표회 논문집
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• pp.451-459
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• 1997

Current domestic building market is in the face of a tise in construction cost as a result of labor cost and materials problems, so improvements for productivity are doing their best for finding a way out of the difficulties. But the most of technical of from work is just considered the basic role and shape. As for environment protection, the utilization of waste concrete is important. But many of studies were interesting on the resource recycling for structural concrete. The purpose of this study is the development of thin precast form using recycled aggregate and the assembling systems for permanent form by cast-in-place.

• Journal of electromagnetic engineering and science
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• 제10권4호
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• pp.256-262
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• 2010

This paper discussed the following. 1. After reaching the final phase of an oil-based society, a resource-saving and -recycling "Methane Energy-based Society" will come about because of limited natural resources. 2. Industrial Infrastructure Technologies which support the Methane Energy-based Society will cause a paradigm shift in the area of industrial, transportation and civilian sectors. 3. The Non-communication application technology of microwaves plays an important role as one of the core element technologies which comprise new industrial infrastructure technologies.

• 한국조경학회지
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• 제23권2호
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• pp.167-181
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• 1995

An Ecocomplex is proposed for ecological design of the estuarine environment of Han River, which is designed upon an alternative mamagement concept of estuarine environment. The concept reveals interrelationships among estuary, delta region and urban inland with inputs/outputs and feedbacks among them. The Ecocomplex emphasizes an integration of wastewater treatment with aquaculture, agriculture and recreation, and carries out ecological treatment, recycling, and harvest processes. A module of wastewater treatment pond system is employed in the Ecocomplex, which treats a flow of 3,786 ㎥/day and is composed of a four-facultative-pond series. Treatment ponds stabilize wastewater discharged from the urban area, and concurrently produce algae for commercial or recreational fish farming. Effluent from treatment and fish ponds is reused for agricultural production. Through the waste-algae-fish-vegetable-recreation processes, wastewater from the urban settlement is recycled back to the urban ecosystem. This resource-conserving design approach can maintain a sustainable urban ecosystem, managing an estuarine environment more naturally, healthly, and economically.

• 유기물자원화
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• 제12권2호
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• pp.110-120
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• 2004

본 연구는 현재 국내에 설치되어 있는 공공자원화시설에 유입되는 음식물쓰레기의 수집운반체계를 분석하여 문제점을 도출하고, 합리적인 대안을 제시하기 위하여 수행되었다. 분리배출방법에 있어서 공동주택은 용기를, 단독주택은 종량제 봉투를 사용하고 있으나, 자원화산물의 재활용용도에 따라 분리배출방법의 개선이 요구된다. 각 지자체별 수집운반비용을 분석한 결과, 낮게는 30,000원/톤, 높게는 150,000원/톤으로 조사되어 수집운반에 있어서 공평성이 확보되지 않고 지자체별로 많은 차이가 있는 것으로부터 지자체별의 특성에 따라 수집운반비용의 산정기준 마련이 필요한 것으로 확인되었다. 세대단위에 부가하는 요금은 종량제봉투의 경우에는 큰 문제점이 없었으나, 공동주택의 경우에는 많은 차이가 있는 것으로부터 해당 지역에서 산출된 수집운반비용에 근거하여 차등부과할 필요성이 있는 것으로 판단되었다. 수집운반차량이 아직까지 생활쓰레기 수집차량을 사용하는 개소가 많으며, 이들은 침출수, 악취 등의 민원이 예견되는 것으로부터 음식물쓰레기 전용차량으로의 점진적인 대체가 요구된다. 또한 수집운반의 거리가 경우에 20km이상으로 초과하는 지역이 있는 것으로부터 이들 지역에 있어서는 적환에 의하여 운반효율을 고려할 필요가 있는 것으로 판단되었다.

• 한국환경보건학회지
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• 제19권4호
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• pp.51-58
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• 1993

The integrated solid waste management for Seoul Metropolitan city can be established on the basis of the following hierarchy of priorities: 1. Efforts for source reduction should be propelled by both government and citizens to achieve the effects of resource conservation. The adequate production and consumption which are environmentally amenable and sustainable can be induced by the reasonable imposition of deposit money for waste treatment to one-time use products. To accomplish source reduction effectively, the induction of legal and institutional regulation of producer and consumer participation is requisite. 2. For resource recovery, wastes generated should be recycled as far as practicable. Community residents are responsible to separate discharge, the authorities concerned have responsibility of separate collection, and recycling industry should be assissted through tax reduction and financing. Resource separation facilities can be constructed at Kimpo Metropolitan landfill site for wastes not separately collected due to some unavoidable circumstances. 3. Garbage should be composted. Garbage is uneconomical for incineration, because it has high moisture content and low calorie, thus there is no reason for the incineration of garbage even though garbage is classified into combustibles. Composting facilities can be located at sites which are not densely populated and easily accessible to transportation, for example, Kimpo Metropolitan landfill site. Compost produced can be managed by the authorities for the use of fertilizer to a green tract of suburban land and farms. 4. Nonhazardous combustible wastes not recyclable can be utilized for thermal recovery at the incinerators which are completely equipped with pollution control devices. According to the trend of local autonomy and the equity principle of local autonomous entities, incineration facilities of minimal capacity required can be constructed at each districts of Seoul Metropolitan city which have organized local assembly. In case of Yangcheon district, the economically combustible waste quantity is about 260 tons/day which exceeds 150 tons/day, the incineration capacity of existing facility. But, from now on, waste quantity can be reduced substantially by the intensive efforts of citizens for source reduction and recycling and the institutional support of administrative organizations. Especially, it is indispensable for the government to constitute institutional and technological bases that can recycle paper and plastics form 43% of waste generated. A good time for constructing of incineration facilities for municipal solid waste can be postponed to the time that pollution control technologies of domestic enterprises are fully developed to satisfy the standards of air pollution prevention, because the life expectancy of Kimpo Metropolitan landfill site is about 25 years. Within this period, institutional improvements and technological advancements can be attained, while the air qual. ity of Seoul Metropolitan city can be ameliorated to the level to afford incineration facilities. 5. For final disposal, incombustibles and ash are landfilled sanitarily at Kimpo Metropolitan landfill site.

• 한국환경농학회지
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• 제42권4호
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• pp.457-464
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• 2023

The rendering residue generated by rendering disposal, an eco-friendly livestock carcass disposal method, is a useful agricultural resource. Methods for recycling this are being actively researched, and this study investigated the impact of applying rendered residue directly to soil on crop productivity and the agricultural environment. The chemical properties of the rendering residue were examined. The pH, OM, T-N, T-P, CaO, K₂O, and MgO content values were 5.47%, 59.8%, 9.22%, 2.96%, 2.16%, 0.51% and 0.10%, respectively. Treatment conditions were divided into control, inorganic fertilizer, and rendering residue, and rendering residue corresponding to 50, 100, and 200% nitrogen content was applied based on the amount of inorganic fertilizer nitrogen input. Greenhouse gases and ammonia were collected during the cultivation period. Rendering residue increased both the yield and growth of peppers and was effective in improving nutrients such as pH and OM of the soil after harvest. However, compared to inorganic fertilizer treatment, it increased emissions of nitrous oxide and methane as well as ammonia. It is judged that the direct agricultural use of rendering residue is difficult, and a utilization method is needed.

• 자원ㆍ환경경제연구
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• 제24권4호
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• pp.747-761
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• 2015

본 연구에서는 2006-2013년 기간의 생활폐기물 관련 자료를 사용하여 종량제봉투 가격이 각 처리유형별 생활폐기물의 수거서비스 수요에 미치는 영향을 조사하였다. 생활폐기물 수거서비스 수요에 영향을 미치는 다른 변수들을 통제하고 관찰되지 않는 지역 및 시간적 특성들의 영향을 통제하기 위해 지역 및 시간 고정효과모형으로 각 처리유형별 수거서비스 수요함수를 추정하였다. 추정결과 종량제봉투 가격의 상승은 비탄력적이지만 종량제봉투에 의한 비음식물류 생활폐기물의 수거서비스 수요를 감소시키는 것으로 나타났다. 또한 종량제봉투 가격의 상승은 음식물쓰레기 배출량을 증가하도록 하고 상대적으로 다른 수거서비스 수요에 비해서 재활용품 배출량의 증가에 강하게 영향을 미치는 것으로 나타났다. 이러한 결과는 종량제봉투 가격의 상승에 따른 비음식물류 생활폐기물에 대한 수거서비스 수요의 감소는 음식물쓰레기와 재활용품의 분리수거의 증가에 기인하는 것임을 시사한다. 그러나 종량제봉투 가격의 상승이 1인당 총생활폐기물 발생량을 증가시키는 것으로 나타나고 있어 음식물쓰레기 및 재활용품의 분리배출 증가와 잠재적인 불법투기 및 소각을 고려한 피드백 효과로 인해 생활폐기물의 발생을 원천적으로 감소하도록 하기보다는 오히려 증가하도록 하는 결과를 낳고 있는 것으로 보인다.

• 한국디지털건축인테리어학회논문집
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• 제13권4호
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• pp.25-32
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• 2013

The green building is one of biggest factors to go the goal of energy saving and environmental conservation, reduction of energy consumption, friendly energy technology, recycling of resource, and environmental pollution reduction technology. The purpose of these green buildings realized by the energy-saving technology such as the exterior materials or curtain wall system. The curtain wall system is a element that come to insulated portions of building envelope that results in heat loss. The purpose of this paper is to carried out mock-up tests for exterior wall used in autoclaved lightweight concrete panels in green building practices. Mock-up test execute a mixed process between standard test procedure and complex test procedure based on AAMA 501(American Society for Testing and Materials) and ASTM 283, ASTM 330(American Society for Testing and Materials). In results, tests meet the requirements that grant values in steps of procedures provided on ASTM and AAMA. ALC panel is suitable for a exterior wall product to be gratified thermal cycling performance and structural capacity, deflection(H/200) and lateral displacement(H/50), for curtain walls.