• 한국연소학회지
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• 제4권2호
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• pp.11-22
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• 1999

Combustion characteristics of the wood chips(balsa chips) were experimentally investigated with respect to the thermal recycle system of the urban waste. The urban waste contains plastics, vegetable and wood materials. Wood was chosen as an example of the one of the component of urban dust. A small wood chip was burned in a electric furnace by the micro-electric balance. The mass reduction rate was normalized by the initial mass of test piece and the time of volatile combustion end. When the mass of the wood chips(balsa chips) was larger than 0.5g, the combustion similarity was found on the normalized mass reduction rate.

• 한국환경보건학회지
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• 제33권1호
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• pp.30-35
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• 2007

Waste policies with waste metering system and recycling in 1995 have contributed to the reduction of solid waste generation. Now rural areas as well as urban areas produce less amount of solid wastes in terms of per capita. However most policies in relation to waste issue have been concentrated in urban areas. Large portion of agricultural waste in rural region are being illegally treated such as open incineration or burned out on the road. In this study, we assessed the atmospheric air quality and health risk by illegal open incineration in rural region. In case of benzene level, worst concentration during illegal open incineration was 0.23 ppm and cancer risk by exposure was estimated to $2.29{\times}10^{-3}$.

• 한국방사성폐기물학회:학술대회논문집
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• 한국방사성폐기물학회 2009년도 학술논문요약집
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• pp.508-509
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• 2009

• 유기물자원화
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• 제24권4호
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• pp.21-29
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• 2016

서울시 25개 자치구가 운영하는 생활폐기물 적환시설을 대상으로 시설의 기능, 지역 친화성, 규범 순응성 등의 3개 영역에 대해 현황을 분석하고 개선방안을 모색하였다. 65개 적환장 중 46개소는 매일 반출이 필요한 대량폐기물을, 19개소는 3~30일 범위에서 체류 후 반출되는 소량폐기물을 다루었다. 57%의 시설이 주거지역과 상업지역에 설치되어 있었다. 또한 57%의 적환장은 나대지 위에 장비만 두고서 적환작업을 하였다. 79%의 적환장은 재활용선별장 같은 시설과 근접하지 않고 독립적으로 존재했다. 도시계획법의 의한 환경기초시설로 지정된 경우는 17%에 불과했고, 폐기물관리법의 규정대로 허가받은 수집 운반업자가 운영하는 적환장은 31% 수준이었다. 적환장은 그 역할에서 시설 최적화, 자원화 확대 같은 정부의 폐기물관리 정책과 부합하였으나 주거지역이나 상업지역 같은 도심에 입지하기에는 환경대책이 미흡하고 규범과 불일치하는 면이 있었다. 앞으로 적환장이 도심의 환경기초시설로 자리매김하려면 건물 밀폐화, 기능의 종합화 등의 과제를 풀어야 한다.

• 자원리싸이클링
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• 제21권2호
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• pp.17-33
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• 2012

ELV 및 E-waste의 재자원화기술은 일본과 한국이 대동소이하나 일본과 비교해서 한국이 개선해야할 몇 가지 과제(개선책)를 지니고 있다. ELV에 있어서는 잠재성 오염물질(프레온가스, 에어백, ASR)의 처리가 불충분하다. ASR 70% 이상의 리싸이클링 없이는 ELV 재활용율 95% 달성은 불가능하다. E-waste에 있어서는 리싸이클링 산업체간의 심한 기술수준 격차를 평균화해야 한다. 또 투명한 유통경로와 리싸이클링 처리량의 향상을 위한 처리시스템이 구축되어야 한다. 일본의 정부 주도 리싸이클링 대형프로젝트는 좁은 분야로 집중되어 있고, 산업체의 참여비중이 높다.

• 한국토양비료학회지
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• 제47권2호
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• pp.80-84
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• 2014

Phosphorus (P) is an essential nutrient for all living organisms. P is mostly obtained from mined rock phosphate. However, existing rock phosphate reserves could be exhausted in the next 50-100 years. As Korea is totally dependent on imported rock phosphate, we should seek for solution to overcome the P depletion by efficient use and recycling. For this, this study suggested a P flow model to identify the location and flow route of P in urban area based on traditional material flow analysis. The type of P entering the urban areas are fertilizer, food and feed. Each type of P is used in agriculture, human consumption and animal husbandry. After going through each process, P is moved to waste management facilities within food waste, excreta and sewage. Some portion of P in waste are buried, incinerated and discharged, which can be reservoir of P in the future.

• 국제학술발표논문집
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• The 7th International Conference on Construction Engineering and Project Management Summit Forum on Sustainable Construction and Management
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• pp.321-327
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• 2017

China is experiencing the urbanization at an unprecedented speed and scale in human history. The continuing growth of China's big cities, both in city land and population, has already led to great challenges in China's urban planning and construction activities, such as the continuous increase of construction and demolition (C&D) waste. Therefore, how to characterize cities' construction activities, particularly dynamically quantify the flows of building materials and construction debris, has become a pressing problem to alleviate the current shortage of resources and realize urban sustainable development. Accordingly, this study is designed to employ 4D-GIS (four dimensions-Geographic Information System) and Internet Plus to offer new approach for accurate but dynamic C&D waste management. The present study established a spatio-temporal pattern and material metabolism evolution model to characterize the geo-distribution of C&D waste by combing material flow analysis (MFA) and 4D-GIS. In addition, this study developed a mobile application (APP) for C&D waste trading and information management, which could be more effective for stakeholders to obtain useful information. Moreover, a cloud database was built in the APP to disclose the flows of C&D waste by the monitoring information from vehicles at regional level. To summarize, these findings could provide basic data and management methods for the supply and reverse supply of building materials. Meanwhile, the methodologies are practical to C&D waste management and beyond.

• 지역연구
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• 제14권1호
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• pp.91-107
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• 1998

Waste disposal problem is one of the most important social welfare indicators in urban area, because the volume of waste generated from urban area is remarkable. So far most waste of Seoul has been disposed at landfills. However, this landifill disposal method is confronted with several difficulties in recent. As public concern on environmental problem increases and autonomy system is settled down, local community people of the landfills refuse to receive the waste produced other places any more. It brought reginal confliction problem between waste sending and receiving by refusing to accept waste from certain region. Furthermore, it is difficult to find another place to fill up the waste, while the existing landfiis is reached at the limit in the near future. In terms of environmental aspects landfill method is not the best way to dispose waste. It contaminates the soil and ground/underground water by leaking water containing many serious pollutants as well as offensive oder. In terms of equity, this waste disposal method is not fair. Environmental pollution causes damage to residence near to the landfills, while the waste produced other places. In order to satisfy the equity aspect, the waste generated a region should be disposed within the region. Incineration of Waste has been provided as the alternative. Government plans to construct waste incinerator in every anatomy, so the waste produced by local community is disposed within their local autonomous area. However, the location decision is not easy, since waste incinerator is one of the facilities to the community people. We can not apply the existing location models for this problem, because they show strong NIMBY phenomenon for the location. The location of waste incinerator should be determined very carefully with consideration of various location factors and criteria. This study proposes a methodology for determining the location of the waste incinerators by utilizing GIS, which is a power research tool for location decision where various geographical factors related. We drive the location factors which should be considered in the determination of waste incinerators. They involve environmental, socio-economic, and institutional factors. In first, we eliminate the area which is located within the environmental location criteria such as slope, fault line, distance to river, and then eliminate ares which is conflict with the social and institutional criteria.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2010년도 추계 학술발표회
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• pp.1245-1252
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• 2010

Many industrialized countries are confronted with a difficulty about reuse of closed waste landfill. facilities. Especially, the demand of closed waste landfill maintenance and reuse nearby urban area has been increased, because of the shortage of usable land and extend of urban area. For the safe reuse of closed waste landfill, the most important check point is the effect of waste landfill on environment abound them. However, the non-sanitary closed waste landfill generally have no leachate lining system, therefore, the in-situ lining system such as sheet-pile, and vertical slurry wall etc. was needed to prevent the leachate outgoing from the waste landfill. In this paper present the case history of performance evaluation of vertical slurry wall by tracer tests.

• 유기물자원화
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• 제23권2호
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• pp.21-27
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• 2015

본 논문은 자원순환사회 구축을 목표로 필요한 재원마련을 위해 도입예정인 폐기물부담금제에 대응하기 위한 폐기물의 에너지화 제고방안을 인천시를 중심으로 평가하고 폐기물부담금제 도입을 위해 고려하여야 할 사항들을 제안하였다. 인천시의 폐기물 에너지화를 위한 주요 문제점으로 파악된 음식물 류폐기물의 반입량 감소에 따른 폐기물의 고발열량화, 종량제봉투에 혼입되어 배출되는 금속류, 건전지 등을 해결하기 위한 대책을 도출하였다.