• 제목, 요약, 키워드: municipal solid waste

검색결과 273건 처리시간 0.041초

생활폐기물을 이용한 RDF(Refuse Derived Fuel) 발전 (RDF(Refuse Derived Fuel) Generation using MSW(Municipal Solid Waste))

  • 장직순;조재범
    • 한국신재생에너지학회:학술대회논문집
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    • pp.448-451
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    • 2008
  • For resource Recycle society, the Ministry of Environment is recently propeling the introduction of MSW(Municipal Solid Waste) pretreatment facilities(MBT) from advanced country such as Germany. On the basis of this, The Ministry of Environment plans to expand all over the country after the adaption of wide area style(Sudokwon landfill : 200 ton/day), urban communities style(Bucheon City : 90 ton/day), Semi-urban(Gangreung City : 150 tons/a day), farm village style (Buan : 30 ton/day).

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A Study on Characteristics of Water Quality in Wastewater according to the Washing of Municipal Solid Waste Incinerator (MSWI) Ash

  • Byun, Mi-Young;Kim, Hyung-Seok;Ahn, Ji-Whan;Kim, Hwan
    • 대한전자공학회:학술대회논문집
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    • pp.296-300
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    • 2001
  • In order to recycle the incineration ash (bottom ash and fly ash) generated from the incineration of municipal waste for a cement material, salts as well as heavy metal should be removed by the stabilization treatment. Most of these heavy metal and over 80% of salts are removed by a washing as a pre-treatment. However, wastewater which is another pollutant is generated by a washing, then proper treatment should be developed. First the characteristics of incineration ashes collected from two domestic full-sized incinerators were investigated and removal rate of salts and heavy metals from them also studied. The wastewater quality was compared to the criteria of the regulation by analyzing the characteristics of generated wastewater during the washing of incineration ash as a condition of liquid/solid ratio. Also, we tried to used this experimental results for the basic data to develop proper processing technique of municipal waste.

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도시 쓰레기 소각 비산재와 산업부산물을 이용한 비소성 인공골재의 제조 (Manufacture of the Non-Sintered Aggregate Using the Industrial By-products and the Municipal Waste Incineration Fly-Ash)

  • 김대규;윤성진;문경주;소양섭
    • 한국콘크리트학회:학술대회논문집
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    • pp.69-74
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    • 2002
  • Incineration method of municipal solid waste is the general method for reduction it's quantity and weight. Municipal solid waste incineration ash is classified two general types of ash : fly ash((MWFA) and bottom ash(MWBA)). MWFA containing a high degree heavy-metal may give rise to a serious environmental trouble. Therefore, this study was carried out to examine utilization of fly ash. In this study, we tried to find the recycling method of fly ash as a environmental-friendly artificial aggregate. The artificial aggregate using fly ash was tested for the various aspects, including physical properties and environmental stability. The qualities of artificial aggregate are similar to it of lightweight aggregate, and the heavy metal leaching concentration are very lower than a limitation of KSLT and EP.

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비위생 매립토의 역학적 물성 (Mechanical Properties of Municipal Solid Wastes)

  • 목영진;김대일;조은혁
    • 한국지반공학회:학술대회논문집
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    • pp.1377-1383
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    • 2005
  • Mechanical properties of Municipal Solid Wastes(MSW) and their influencing parameters were studied by using a series of triaxial compression tests and resonant column tests. The shear strength of MSW can be modeled by a bilinear failure criterion. As the unit weight increasing, cohesion and internal friction were increased linearly on semi-log scale. As the proportion of waste to soil increases, maximum shear moduli tend to decrease whereas minimum damping ratios increase. Shear moduli and damping of degradable waste are higher than those of non-degradable MSW.

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Comments on waste to energy technologies in the United Arab Emirates (UAE)

  • Shareefdeen, Zarook;Youssef, Norhan;Taha, Ahmed;Masoud, Catherine
    • Environmental Engineering Research
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    • v.25 no.1
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    • pp.129-134
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    • 2020
  • The main reason that drives many developing countries to pursue waste-to-energy (WtE) technologies is that it produces energy while eliminating build-up of large quantities of wastes, at a time, when oil and gas reserves are declining. The rate of generation of municipal solid wastes (MSW) in any given country depends on many factors including economy, population, and modernization of industry and infrastructure developments. The United Arab Emirates (UAE) is a federation of seven emirates that has grown to be one of the Middle East's most important economic centers. UAE has also become one of the highest waste producing countries due to fast development and growth; thus, UAE pursue modern technologies to covert generated wastes into energy. In this communication, the status of on-going waste to energy projects and WtE plants that are currently under design and construction in UAE are discussed. The need for development of WtE technologies is presented based on the literature, reports, economics and the environmental regulations.

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

  • 안지환;오명환;한춘
    • 자원리싸이클링
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    • v.17 no.1
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    • pp.3-11
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    • 2008
  • 국내의 생활폐기물의 처리 방법은 매립에서 소각으로 이동해 가고 있으며 이를 통하여 발생되는 소각재의 처리에 대한 비중이 점차적으로 증가하고 있다. 소각재는 90%가 바닥재로 존재하며, 바닥재는 재활용 가능한 성분을 함유하고 있기 때문에 재활용을 위한 활발한 연구가 필요하다. 예를 들어 미국과 유럽 그리고 일본의 경우 여러 분야에서 바닥재의 재활용이 이루어지고 있으며 이에 따른 환경적 경제적 효과를 얻고 있다. 하지만 이와 대조적으로 국내의 경우 소각재 관리 처리 시 대부분 매립에 의해 의존하고 있는 실정이다. 따라서 소각재의 발생특성과 성상을 조사 분석하고, 국내외의 소각재 안정화 및 재활용기술에 대한 기술조사와 평가를 기반으로 한 처리방안에 대한 연구가 절실히 요구된다.

하수슬러지와 생활폐기물 혼합소각시 하수슬러지 정량공급에 관한 연구 - Batch Test 중심으로 (A Study on Quantitative Supply of Sewage Sludge for Co-Incineration of Municipal Solid Waste and Sewage Sludge)

  • 조재범;김우구;연경호;신정훈
    • 대한환경공학회지
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    • v.35 no.1
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    • pp.64-69
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    • 2013
  • 이 연구논문의 주요 목적은 하수슬러지와 생활폐기물을 혼합소각할 경우, 소각시설의 안정적 운영을 위해 가장 중요한 변수인 하수슬러지의 정량공급 방안에 관한 것이다. 실험결과, 슬럼프테스트와 유동화테스를 통해 함수율을 약 87%로 정량공급할 경우, 하수슬러지의 표면연소를 보완하여 완전연소가 이루어 질 것으로 판단되어 향후 생활폐기물과 하수슬러지 혼합소각시 소각시설의 안정화에 기여할 것으로 판단된다.

생활쓰레기 문제에 대한 소도시 시민의 의식조사 (Consciousness of Citizens for the Issue of the MSW(Municipal Solid Waste))

  • 장성호
    • 환경위생공학
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    • v.13 no.3
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    • pp.93-101
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    • 1998
  • This study was carried out to investigate and analyze the citizen's attitude for the issue of the municipal solid wastes in Miryang city. The waste generation rate was decreased by 56% compared with 1991, and 71.8% of generated wastes were treated by landfill method. 61.6% among respondents were contacted waste problem by TV and the majority of respondents felt seriousness of food-waste problem. The majority of people felt that waste discharge decreased after "volume-base charge system" and 71% of total respondents were burdened down with use of volume-base charge envelope. The greater part of citizens answered that they experienced damage due to wastes and satisfied with the collection system but they recognized the necessity of the establishment of collection system and increase of cleaners must be nessary.

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Biodrying of municipal solid waste under different ventilation periods

  • Ab Jalil, N.A.;Basri, H.;Basri, N.E. Ahmad;Abushammala, Mohammed F.M.
    • Environmental Engineering Research
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    • v.21 no.2
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    • pp.145-151
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    • 2016
  • Biodrying is a pre-treatment method that applies biological and mechanical concepts to drying solid waste. In Malaysia, municipal solid waste (MSW) is unseparated and contains a high level of moisture, making the use of technology such as solid waste burning unsuitable and harmful. MSW containing organic material can be processed naturally until the moisture content of the waste is reduced. This study on MSW biodrying was carried out on a laboratory scale to measure the percent moisture content reduction and to monitor temperature patterns under different ventilation periods. This work was conducted using five biodrying reactors volumes of 50 liters each. Reactors were ventilated for 5, 10, 15, 20 and 30 min every 3 h, with a 3 bar air supply. The duration of this process was 14 days for all samples. The results showed that the optimum ventilation time was 10 min, with an 81.84% reduction in moisture content, and that it required almost half of the electricity cost required for the 20 and 30 min ventilations.

강원지역 도시폐기물의 물리·화학적 특성 연구 (The Study of Physico-chemcal Characteristics of Municipal Solid Waste (MSW) in Gangwon Area)

  • 이건주
    • 유기물자원화
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    • v.17 no.2
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    • pp.101-111
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    • 2009
  • 본 연구에서는 강원지역의 도시 생활 쓰레기의 성상 및 물리 화학적 조성을 연구하였다. 생활 쓰레기 자원화시설 설치 및 자료확보 차원, 매립장 관리차원에서 본 연구는 필요한 연구이다. 폐기물의 평균 밀도는 $101.8{\sim}199.8kg/m^3$ 범위내의 결과를 얻었다. 생활 쓰레기는 30.7%의 음식물류, 36.3% 의 종이류, 15.8%의 플라스틱 및 비닐류, 1.9%의 섬유류, 3.2%의 목재류 1.5%의 고무 및 가죽류 등으로 구성되어 있다. 생활쓰레기의 대부분은 음식물, 종이류, 플라스틱류 등으로 이루어져 있으며 90% 정도가 가연 성분이다. 삼성분 분석에서는 44.6%의 수분 및 47.4%의 가연분 그리고 7.7% 의 회분으로 이루어져 있었다. 원소분석결과는 탄소, 산소, 수소 순으로 많았다. 생활쓰레기의 저위 발열량은 2,631kcal/kg 이며 고위 발열량은 3,310 kcal/kg 이었다.

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