• Title/Summary/Keyword: 소각처리

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Combustion Control of Refuse Incineration Plant using Fuzzy Model and Genetic Algorithms (퍼지 모델과 유전 알고리즘을 이용한 쓰레기 소각로의 연소 제어)

  • Park, Jong-Jin;Choi, Kyu-Seok
    • The Transactions of the Korea Information Processing Society
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    • v.7 no.7
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    • pp.2116-2124
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    • 2000
  • In this paper we propose combustion control of refuse incineration plant using fuzzy model and genetic algorithm. At first fuzzy modelling is performed to obtain fuzzy model of the refuse incineration plant and obtained fuzzy model predicts outputs of the plant when inputs are given. Fuzzy model ca be used to obtain control strategy, and train and enhance operators' skill by simulating the plant. Then genetic algorithms search and find out optimal control inputs over all possible solutions in respect to desired outputs and these are inserted to plant. In order to testify proposed control method, computer simulation was carried out. As a result, ISE of fuzzy model of refuse incineration plant is 0.015 and ITAE of control by proposed method, 352 which is better than that by manual operation.

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Study on the heavy metal stabilization by dosing of chelate on the bottom ash (소각재에서의 용출억제제를 이용한 중금속 안정화에 관한 연구)

  • Jang, Hyeon-Jong;Kim, Seong-Jung
    • Journal of the Korea Organic Resources Recycling Association
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    • v.17 no.4
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    • pp.81-90
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    • 2009
  • About 35 domestic incinerators are being operated currently. There is waste management policy to reuse waste efficiently and reduce waste through incineration which include reuse, recycling and energy recovery. However, there is a critical social issue that some heavy metals(Cu, Pb) were found in bottom ash from incineration of waste. After incineration, bottom ash is treated with chemicals to prevent second pollution of heavy metals from bottom ash and increase efficiency of heavy metal stabilization.

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Economic Assessment of the Heat Recovery from Incineration Plants Based on Regression Analysis (회귀분석을 이용한 소각장의 소각열 회수 경제성 분석 연구)

  • Yoon, Jungmin;Son, Hyeongmin;Park, Dong Yoon;Chang, Seongju
    • Resources Recycling
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    • v.23 no.3
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    • pp.3-12
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    • 2014
  • This study aims at providing an economic assessment for incineration plants which recover heat during its incineration process. In this study, Life Cycle Cost(LCC) of incineration plants is performed based on each regression analysis formula for construction cost, operation cost, and heat generation in order to compare economic feasibility. The result shows that the incineration plant recovering waste heat while processing 80 tons of waste per day increases both initial investment and operation cost but this type of an incineration plant has economical predominance from the recovered waste heat over the one that does not recover heat when being operated for more than eleven years if the retrieved heat replaces the use of LNG. And its payback time reaches more than 19 years in case of selling heat and performing emission trading.

A Study of Contaminant Removal for Pore-Water Collection (토양 간극수의 효율적 포집을 위한 오염물질 제거에 관한 연구)

  • 이성백
    • Journal of Korea Soil Environment Society
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    • v.4 no.1
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    • pp.69-73
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    • 1999
  • The study was performed to examine the elimination capacity of impurity on the fiberglass wicks to exert a suction of Passive capillary samplers (PCAPS) on soil water. This impurity affects the capillary properties of the wick and the chemical properties of the samples collected. To determine the need, capillary rise and moisture contents were measured after the wicks were cleaned by four methods : combustion, acetone extraction, detergent washing, and uncleaning. The wicks were made with fibers produced by PPG Industries and Manville Company, U.S.A. Results showed that wicks made from PPG fibers lost up to 3.4% of original mass during combustion while Manville fiber wicks lost only up to 0.6%. These losses are assumed to have been due to combustion of organic compounds applied by the manufacturers. All cleaning methods had higher capillary rise than obtained with uncleaning method Combustion at 40$0^{\circ}C$ for 4 hours was the best cleaning method. removing 98 to 100% of impurities.

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A Study on the Entrance Region Fouling of Sludge Incinerator Air-preheater at IronWorks (제철슬러지 소각로의 공기예열기 입구의 파울링특성 연구)

  • 박상일;김정근
    • Proceedings of the Korea Society for Energy Engineering kosee Conference
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    • 2003.05a
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    • pp.557-562
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    • 2003
  • 산업체 소각로의 고온 배가스에는 소각물질의 특성에 따라 다양한 성분의 오염물질이 함유되어 있다. 고온 소각배가스의 후처리를 위하여 배가스냉각용 열교환기가 사용되고 있다. 그러나, 소각로 열교환기의 입구와 전열면에 파울링 현상이 발생하여 열교환기의 전열성능이 감소하고 또한 심한 경우, 유로면적이 줄어들어 통풍저항이 증대된다.(중략)

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로타리 킬른형 소각로 개발을 위한 3차원 난류반응장 수치해석

  • 엄태인;장동순
    • Proceedings of the Korea Society for Energy Engineering kosee Conference
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    • 1993.11a
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    • pp.82-87
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    • 1993
  • 산업폐기물 소각시스템으로 현재 널리 이용되고 있는 대형 로타리 킬른형 소각로를 모델로 선정하여 소각로 설계에 필요한 제반변수에 대한 영향을 슈퍼컴퓨터를 이용하여 분석하였다. 화염억제 작용이 있으며 소각처리시 유독물질을 배출하는 $CCl_4$를 폐기물로 주입하는 경우 비평형 난류반응모델을 도입하여 반응장 해석을 한 결과 실험결과와 정성적으로 일치된 결과를 얻을 수 있었다.

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A Study about Recycling from Municipal Solid Waste Incineration Bottom Ash (생활폐기물(生活廢棄物) 소각(燒却)바닥재의 재활용(再活用)을 위한 연구(硏究))

  • Ahn, Ji-Whan;Oh, Myung-Hwan;Han, Choon
    • Resources Recycling
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    • v.17 no.1
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    • pp.3-11
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    • 2008
  • The treatment of domestic municipal solid waste has inclined to incineration process instead of disposal in landfills. So, the amount of ash generated by incineration of municipal solid waste is gradually increased. The incineration ash divides into bottom ash and fly ash. The bottom ash which accounts for about 90% of the incineration ash consists of ceramics, glasses and metals. And it can be used as the recycling product by the stabilization process. For example, the bottom ash is used as secondary building material or for other similar purposes such as road sub-bases and noise barrier in USA, Europe and Japan. But, the stabilization-treatment technique of bottom ash sti11leaves much to be desired in Korea. Thus, the domestic study of recycling about bottom ash must be improved through investigation about the chemical property and technique of stabilization.

Environmental impact evaluation and improvement measure of incineration plant by life cycle assessment (전과정평가를 이용한 소각시설의 환경영향평가 및 개선방안)

  • Kim, Hyeong-Woo;Kim, Kyeong-Ho;Park, Hung-Suck
    • Journal of the Korea Organic Resources Recycling Association
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    • v.21 no.4
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    • pp.88-100
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    • 2013
  • This study evaluated the direct and indirect environmental impacts of various unit operations of a industrial waste incineration plant by using the life cycle assessment tool and reviewed the improvement plan. During the incineration process, the direct environmental impact was decreased with decrease in emission of various air pollutants by incorporating an air pollution prevention facilities. However, an increase in indirect environmental impacts was observed as a consequence of resources and energy of consumption at the various operational facilities. Consequently, quantitative direct and indirect impact were 89.1%, 10.9%, respectively. The environmental impact analysis of system revealed the highest impact of incineration followed by the impacts of other unit processes such as semidry reactor, and bag-filter. The various air pollutants and ashes generated during the incineration process caused the most significant environmental impact. Among the various categories of environmental impact, global warming accounted the highest impact(more than 85%) followed by eutrophication, and abiotic depletion. As a result of the avoided impact by the utilization of heat generated during the waste incineration process, using an incineration heat for steam and electricity obtained the impact reduction of 45.5%, 19.8%. So, during siting of new incineration plant, the utilization of steam generated from the waste combustion is highly considered to reduce the environmental impact.

Experimental study on the pulse jet cleaning for bag-filter (여과 집진기에서 충격 기류식 역세척 효과에 대한 연구)

  • 박병현;조영민
    • Proceedings of the Korea Air Pollution Research Association Conference
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    • 2002.11a
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    • pp.415-416
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    • 2002
  • 급속한 경제발전에 따라 생활 수준이 향상되고 생활양식도 많이 변화되고 있으며 가정이나 생산현장에서 발생하는 폐기물의 발생량은 급속히 증가하고 있다. 해마다 누적되어 가는 폐기물 매립량의 증가로 인하여 기존 폐기물 매립지는 현재 거의 포화 상태에 달해 있다. 이에 따라 우리나라의 폐기물 처리 방법은 기존의 매립위주에서 소각처리로 점차 확대되어 나가고 있는 실정이지만 소각시설 인근 지역의 환경 질 저하에 대한 문제점 및 주민민원 발생 또한 빈번해지고 있는 추세이다. (중략)

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