Recently, it is a critical issue for Korea that Metropolitan Landfill site life extension was in crisis contrast for localresidents and local governments. In Europe and Japan, the generation of waste and landfills were suppressed and theyintroduced the MBT facility in order to increase the recycling and energy recovery. In this study, the process of domesticMBT facilities were evaluated by the physical and chemical composition, calorific value and biomass content, the aerobicbiodegradation of biodegradable waste by comparing and analyzing each step through the evaluation. Both organic residuesand inorganic residues carbon content discharged from the MBT analysis, moisture content, calorific value of residues didnot meet solid refuse fuels quality standards. While the biomass content and aerobic biodegradation higher than standardbiodegradable waste landfill in Europe. Biodegradable organic residue selected from domestic solid fuel manufacturingfacility is expected to be able to manage through the biomass content and biological stability analysis. Based on the resultsof future research it is needed to review the criteria and additional landfill energy recovery by incineration residues.

In order to cope with resource depletion and global warming, many countries around the world are seeking the technicaland political alternatives and are focusing on production of refuse derived fuel (SRF) as a viable approach. SRF isclassified into pellet SRF and fluff SRF based on the shape. In domestic trend, Pellet RDF has been mainly produceduntil now, but as the quality standard of fluff SRF was set up lately, it is expected to raise supply and demand on FluffSRF after this. Fluff SRF is a solid fuel not to be processed pelletizing step, and has advantages that manufacturing processis simple and economical. In this paper, we selected 3 MBT plants to produce Pellet SRF in Korea and examined reductioneffects of energy and CO2 emission by conversion of pellet SRF to fluff SRF. As a result, the saving energy by theconversion of SRF type is 2,509 Gcal/yr (A), 1,716 Gcal/yr (B) and 1,210 Gcal/yr (C) respectively, and the reductionrate of energy consumption in full process is about 23%~26% by comparison with pellet SRF. Also, the average ofreduction of CO2 emission per unit of MSW is 0.0272 tCO2/ton. After estimating the reduction of CO2 emission of 9MBT plants in Korea, based on the results of a survey of target plants, we concluded that the reduction effect of CO2emission is created 11,374 tCO2/yr.

This paper examined energy consumption distribution by process and energy production-effect of MBT facilities inKorea. Generally, facilities that use fossil fuels for drying consumed energy about 70~80% in drying and exhaust gasestreatment process and energy distribution was heavily affected a position of drying and a kind of fuel. Energy production-effect by the ratio of input-energy to output-energy ranged from 4.54 to 9.60, however, if generation efficiency is reflected,it was standardized to low levels from 3.10~3.77. So we were able to confirm that the superiority of energy production-effect between facilities is not considerable.

최근 인류의 도시화 산업화에 따라 화석연료의 소비가 늘어나면서 기후변화와 초대형 기상이변 등이 자주 발생하고, 이러한 현상들로 인하여 기후변화와 에너지 부족에 관해서 많은 관심이 쏟아지고 있다. 이러한 관심에 의해 기후변화와 에너지위기에 대비한 많은 정책들과 기술투자가 이루어지고 있다. 이 중에서 폐자원 에너지화 분야에서는 폐기물로부터 다양한 에너지원으로 이용 가능한 물질을 회수하기 위해서 고형연료 제조시설이 설치 운영되고 있다. 하지만 고형연료의 제조시설에서도 상당량의 잔재물이 발생되고 있으며, 이렇게 발생 된 잔재물의 최종처분에 대한 문제점이 항상 대두되고 있다. 잔재물의 최종처분은 소각 및 매립이 주로 행해지고 있는데, 현재 국내에서는 발생되는 잔재물의 발생저감방안과 최종처분을 위한 평가기준이 마련되어 있지 않다. 유럽의 경우는 EU매립지침(1999/31/EC)에서 생분해성 물질의 매립량을 단계적으로 감량하여 매립량을 1995년 기준 2016년까지 35%로 목표를 정하였고, 국가별로 중간처리가 안된 생분해성 물질이나 유기탄소함량 또는 발열량을 기준으로 일정 수준 이상은 매립을 금지하는 기준을 마련하고 있다. 따라서 국내에서도 매립량에 대한 저감방안과 매립금지 평가기준 등이 필요할 것으로 판단된다. 본 연구에서는 국내에 설치 운영중인 고형연료 제조시설 중 4개 업체를 선정하여 공정과 잔재물을 비교한 결과 시설별로 선별조합 및 건조방식 등에 차이가 있었다. 각 시설들의 공정별 잔재물에 대한 발생량, 삼성분, 원소함량, TOC, SDM 및 발열량 등 잔재물 특성을 분석하여 에너지화 유도를 통한 매립량 저감방안과 평가항목에 대해서 검토하였다.

The refuse derived fuel (RDF) is available for renewable energy which can use alternative fuel to utilize recycling municipal solid waste (MSW). The RDF plant where can produce 100 ton/month of RDF, the largest manufacturing plant in Korea so far, were investigated in this study. The actual operated RDF yield showed 21.7% that was lower than expected yield; originally designed value was 25.0% in this plant. The cause of these results was that difference between physicochemical properties of MSW applied this plant originally and actual incoming it. The MSW affected to make separation efficiency of MBT process decreasing. It led to reduce amount of combustible material which needed for RDF after separating process. The each element of facilities was modified; decreasing width of the blade of a shadder from 110 mm to 63 mm, reducing the size hool of trommel screen to possible separating under 40 mm of MSW, increasing heat capacity of dryer from 2,000 Gcal/hr to 2,500 Gcal/hr, and conveyor type changed to prevent path MSW away during moving into each process and so on. After modifying facilities, got more combustible materials which were once lost and RDF yield increased to 30.9%. Whereas, low heating value of RDF was 4,725 kcal/kg, 0.8% of chlorine on average and other parameters were satisfied with domestic standard of RDF regardless of modifying MBT facilities.