• Title/Summary/Keyword: 폐기물소각로

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Recycling Apparatus of Organic Wastes by Extra Heat of Incinerator (소각로 폐열을 활용한 유기성 폐기물 재활용장치)

  • Han, Doo-Hee
    • Proceedings of the KAIS Fall Conference
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    • 2007.11a
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    • pp.400-402
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    • 2007
  • 본 논문은 쓰레기 소각로에서 발생하는 폐열을 활용하여 유기성 폐기물의 재활용하는 방안을 제시한다. 파쇄된 유기성 폐기물을 증류 건조시켜 건조된 고형물과 응축수로 분리하여 응축수는 액비나 탈취제로 활용하고 고형물은 단미사료로 활용하는 완벽한 재활용시스템이다. 탈리액의 해양투기가 금지될 경우 탈리액을 획기적으로 줄이는 대안이라 여겨진다.

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A Study on the RDF fuel mixing with household and organic wastes (생활(生活)쓰레기 및 유기성폐기물(有機性廢棄物) 혼합(混合)에 따른 RDF 연료화(燃料化)에 관한 연구(硏究))

  • Ha, Sang-An;You, Mi-Young;Kim, Dong-Kyun;Wang, Jei-Pil
    • Resources Recycling
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    • v.20 no.5
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    • pp.52-57
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    • 2011
  • This study was conducted to examine the possibilities to utilize the mixture of domestic and organic wastes from B-city as a fuel. All types of mixing ratio for uncarried waste, sludge cake, and food waste were found 10 generate heating value with 6,000 kcal/kg, and in case of sludge cake the concentration of toxic substance produced was found to be decreased as air-fuel ratio and temperature were increased. It was noted that toxic gases such as CO, NOx, and SOx were observed below concentration of emission standard, and temperature inside the incinerator was stabilized at 2 of air-fuel ratio and 800$^{\circ}C$. It was observed that a heating value of 6000 kcal/kg generated using RDF(Refuse Derived Fuel) was appropriate to utilize a fuel if a complete combustion was attained.

A Characteristics of Hg, Pb, As and Se Emitted from Small and Medium Size Waste Incinerator Stacks (중.소형 폐기물 소각시설에서 배출되는 수은, 납, 비소, 셀렌 배출특성)

  • Lee, Han-Kook;Moon, Bu-Shik;Lee, Dong-Hoon
    • Journal of Korean Society of Environmental Engineers
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    • v.27 no.11
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    • pp.1205-1214
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    • 2005
  • This study was carried out to investigate the emission characteristics of volatile metals(Hg, As, Se) and semi volatile metals such as Pb from small and medium size municipal solid waste incinerators(MSWIs). The concentrations of Hg, Pb, As and Se in emission gas from small size waste incinerators were higher than those of medium size waste incinerators. This is probably due to less air pollutant control devices and high emission gas temperature of the small size waste incinerators relative to the medium size waste incinerators. Emission gas temperature from small and medium size waste incinerators were divided into 2 groups. The first group was about $100^{\circ}C$ and the second roup in the range of $400{\sim}700^{\circ}C$. The concentrations of emission gas at the second group were Hg $70.43\;{\mu}g/Sm^3$, Pb $0.94\;{\mu}g/Sm^3$, As $9.83\;{\mu}g/Sm^3$ and Se $5.05\;{\mu}g/Sm^3$. The concentrations of Hg, Pb, As and Se at the first group were lower than those found at the second group. Besides, the removal efficiencies of Hg in medium size waste incinerators were $55.2{\sim}95.9%$. Emission gas temperature reduction from waste heat boiler(WHB) contribute to control of Hg. Based on above results, we postulate that the temperature of flue gas should play a very important role in volatile metal control in small and medium size MSWIs. In order to improve the volatile metals removal efficiency, the temperature of cooling system must be controlled and the air pollution control device should be operated properly.

Characterization of Fly Ash Produced from a Sewage Sludge Incineration Facility in Korea (국내 하수슬러지 소각시설에서 발생되는 비산재의 특성 분석)

  • Kim, Seong-beom;Lee, Wontae
    • Journal of Korean Society of Environmental Engineers
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    • v.38 no.2
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    • pp.96-99
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    • 2016
  • This study characterized fly ash produced from a sewage sludge incineration facility in Korea to determine if the byproducts can be utilized. All the incinerated sewage sludge was from a city in Korea. To characterize fly ash and to determine if it can be utilized, pH, water contents, elemental components, particle size, surface morphology, heavy metal compositions, and others were analyzed. In average, pH was 6.2, and water contents was about 5%. T-N and $T-P_2O_5$ were 3% and 24.5%, respectively. Particle size averaged 836 nm; surface morphology did not exhibit any significant results. X-ray diffraction (XRD) analysis results revealed that major components of the fly ash were $P_2O_5$, CaO, MgO, $K_2O$. Composition of heavy metals by the Korea Standard Methods for Waste Quality did not exceed the criteria for specified wastes in Korea.

A study on the Concentrations of Sulfur compounds using a GC/FPD from Industrial Hazardous Waste Incinerators. (GC/FPD를 이용한 산업폐기물 소각시설의 황 화합물 농도분포특성 연구)

  • 김덕현;유병대;김완중;김선태;박민수;전의찬;박종호
    • Proceedings of the Korea Air Pollution Research Association Conference
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    • 2003.05b
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    • pp.279-280
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    • 2003
  • 환경부에서 발표한 2001년도 사업장 배출시설계 폐기물 발생현황을 보면 소각에 의한 처리량이 1995년도에 5,691톤/일에서 2001년도에 7,875톤/일로 꾸준히 증가하는 추세를 보이고 있다(환경부 2001). 이러한 산업폐기물 소각장에서 발생하는 유해오염물질은 매우 다양하다. 그 중 최근 사회적 이슈로 떠오르는 것이 악취이다. 악취는 황화수소ㆍ메르캅탄류 아민류 등 기타 자극성 있는 기체상 물질이 사람의 후각을 자극하여 불쾌감과 혐오감을 주는 냄새로, 주로 인체 위해성 보다는 정신적ㆍ심리적 피해를 끼치는 감각공해이다(환경부, 2000). (중략)

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Evaluation of Mercury Sampling and Emission Characteristics from Stationary Combustion Sources (고정연소설비로부터 배출되는 수은화합물의 시료 채취 방법과 배출특성평가에 관한 연구)

  • 이성준;서용칠;정종수;이태규;홍지형
    • Proceedings of the Korea Air Pollution Research Association Conference
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    • 2003.11a
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    • pp.237-238
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    • 2003
  • 대기오염물질 중 수은화합물질은 생태계와 인간에게 치명적인 독성과 생물농축의 특성 때문에 유해한 물질로 관리되어왔으며, 1990년 미국의 Clean Air Act Amendment(CAAA)의 188개의 대기오염물질대기오염물질(HAPs) 중의 하나이고, 국내에서도 25종의 특정대기유해물질 중의 하나로 관리되고 있는 물질이다. 미국 EPA의 보고서에 따르면, 수은화합물의 주요 배출원은 석탄 화력발전소를 비롯한 도시폐기물소각로, 유해폐기물소각로, 병원폐기물소각로 등의 연소설비가 미국 전체 연간 수은배출량의 약 87%를 차지하는 것으로 나타나 주요 배출시설에 대한 관리가 요구되는 것으로 나타났다(US EPA 1997,1998). (중략)

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Simulation of the flue gas treatment processes of an industrial-waste incinerator using Aspen plus (Aspen plus를 이용한 산업폐기물 소각로의 배가스 처리 공정 모사)

  • Lee, Ju-Ho;Jung, Moon-Hun;Kwon, Young-Hyun;Lee, Gang-Woo;Shon, Byung-Hyun
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.10 no.11
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    • pp.3246-3252
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    • 2009
  • The interest on the recovery of thermal energy using the waste has been rising to solve the problems of continuous increase of waste generation and the depletion of the fossil fuel recently. The incineration has been used most popularly as a treatment process of the waste for the energy recovery. However, it is expected that incineration and design cost will increase in the treatment of air contaminant emitted from incinerator. This research has simulated the actual incinerator and the flue gas treatment system using the Aspen plus which is the software to simulate the chemical process. The incineration process is composed of the 1st and 2nd combustor to burn the waste, SNCR process to reduce the $NO_x$ using the urea, and the steam generation process to save the energy during incineration. The $Ca(OH)_2$ slurry was used as an acid gas (HCl, $SO_2$) treatment materials and the removal efficiency for the products from the neutralization of acid gas in SDA and combustion ash was simulated at the bag filter. The simulation result has been corresponded with the treatment efficiency of emitted gas from the actual industrial waste incinerator and it is presumed to be used to forecast the efficiencies of flue gas treatment system in the future.

A Study on the Utilization of Combustible Construction Waste as Fuel (가연성 건설폐기물의 연료화 활용방안에 관한 연구)

  • Park, Ji-Sun;Lee, Sea-Hyun
    • Journal of the Korean Recycled Construction Resources Institute
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    • v.5 no.2
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    • pp.116-123
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    • 2010
  • The current enforcement regulation of "The Act on the Promotion of Construction Waste Recycling" defines disposal method of combustible construction waste without obvious recyclging method of those. This leads most combustible construction waste to incinerate or landfill as mixed construction waste. Therefore, it needs regulations to decrease incineration or landfill and to increase recyling of combustible construction waste. This study analyzed the problems of disposal and management of domestic combustible construction waste. As well as considerated regulations relative to utilization of waste solid fuel. From these results, it suggested utilization plans of combustible construction waste as fuel.

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Secondary Air Nozzle Design of Combustion Chamber of 50 ton/day Commercial Incinerator (50톤/일 상업용 소각로 연소실 2차 공기 노즐 설계)

  • 박병수;이진욱;서정대;허일상
    • Proceedings of the Korea Society for Energy Engineering kosee Conference
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    • 1999.05a
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    • pp.127-132
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    • 1999
  • 우리나라의 도시폐기물 소각로는 화격자 위에 폐기물을 공급하고 화격자 밑에서 공기를 공급하는 스토커식 소각로를 대부분 채택하고 있다. 이러한 스토커 소각로 연소실내에서는 매우 복잡한 연소현상이 발생하는데, 연소실로 투입된 쓰레기는 먼저 건조부에서 수분의 건조가 일어나고, 화격자의 구동에 의해 쓰레기가 혼합 및 이송되면서 열분해, 가스화, 가연성분의 탈휘발화 및 연소, 일부 고정탄소의 표면연소 등의 반응이 일어난다. 그리고 1,2차 연소실에서는 휘발분 및 비산된 고체의 연소가 일어나는데, 이때 대류 및 복사열전달 등의 복잡한 현상을 수반하는 유동장이 형성된다. 더욱이 불균질한 특성을 갖는 쓰레기층 내에서의 복잡한 현상으로 인하여 발생하는 경계조건 설정의 불확실성으로 연소실내의 연소 현상을 전산해석하는 데에는 상당한 어려움이 있다.(중략)

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