In this study, the authors applied a modified SRF product quality based on a mix of disposable plastic bags and bulky waste to estimate the mixing ratio which can be the energy efficiency of coal for fuel. This study was performed to find physical properties of bulky wasteand element analysis for the mixd disposable plastic bag. Also, SRF (solid recovery fuel) was tested to figure out, physicochemical properties by standard method. As the results, the physical properties of bulky waste shows 89.6% of wood. Then the author measured disposal plastic bag as follows : [3 : 7], [5 : 5], [7 : 3] quality criteria by the mixing ratio of bulky waste. The low calorific value was proportionally increased whenever the mixing ratio of disposable plastic bag was increased. Therefore, the author can surmise that the mixing ratio between bulky waste and disposable plastic bag was [6 : 4]. It shows 5,950 kcal / kg value as much as coal fuel.

The MOE (Ministry of Environment) had classified 4 types of solid fuels as RDF (Refuse Derived Fuel), RPF (Refuse Plastic Fuel), TDF (Tire Derived Fuel) and WCF (Wood Chip Fuel) in Korea at 2012. However, the MOE has reclassified, the solid fuels with SRF (Soild Recovery Fuel) and Bio- SRF. Since the qulity standard for SRF has moderated, it is easier and more economical to recycle the waste. In this study, investigation for the generating, collecting, transporting, and treatment system of bulky waste in Seoul were performed. Moreover, experiments conducted to the analysis of collected bulky waste for assessment of SRF. According to the report of waste -meter-rate system in 2010, amount of bulky waste from to Dongdaemun-Gu is similar to average emissions in Seoul, and have an important facilities of transshipment for bulky waste, so that is the reason to select Dongdaemun-Gu for this research. According to process of Dongdaemun-center, bulky waste is classified into four-case, as metals, sponges, woods, and inclusion. Because the potion of inclusion is the difficult material to recycle, the entire quantity generated has been incinerated in Dongdaemun-Gu. the incinerating cost for inclusion was about 300 million won in 2012. Thus, inclusion from bulky waste was taken the target material to apply for SRF. So selected as inclusion that was incinerated to apply the SRF fuel standard. This research was analyzed the change in characteristics related to bringing location and period in order to evaluate the potential of energy of bulky waste in seoul. As a results of evaluation, there is not any differences related to changes of location and period. In addition, the results of conformity assessment of quality standards. Assessment items were satisfied with quality standards without moisture content. Moreover, low caloric value that is the primary factor to apply SRF was about 4,000 Kcal/kg Which is the homogeneous energy to utilize as fuel. However, taking steps as shield system for control of increasing moisture content by rainfall would be required.

화석연료의 환경오염문제와 자원고갈에 의한 에너지 수급 문제는 폐기물 에너지를 신재생에너지로 사용하는 패러다임의 변화를 가져왔으며 2005년부터 시행된 쓰레기 종량제의 시행은 폐기물 성상에 많은 변화를 가져왔다. 본 연구 대상지역은 소각로 용량(100Ton/day)에 비하여 소각시설로 반입되는 생활폐기물 양이 부족하여 이에 대한 해결방안으로 폐목재, 폐가구등의 대형폐기물 혼합소각에 대한 연구를 하였다. 생활폐기물 소각시설에 반입되는 생활폐기물과 폐목재, 폐가구등의 대형폐기물의 조성 및 삼성분 발열량을 분석하고, 생활폐기물과 대형폐기물 혼합비율을 각각 무게기준 0%, 10%, 20%, 30%로 하여 소각 후 발생되는 연소가스를 분석하였다. 생활폐기물 발열량은 약 3477 Kcal/kg이고, 삼성분 분석 결과 수분 26.45%, 가연분 64.61%, 회분 8.94%으로 나타났으며, 대형폐기물 분석결과 발열량 4595.47 Kcal/kg, 수분 26.83%로 나타났다. 각각의 시료들을 반건식 반응탑, 여과집진기와 SCR(Selective Catalytic Reduction)의 연소가스 처리설비를 갖춘 소각시설에 소각 후 연소가스를 분석한 결과 Dust, NOx, CO, SOx는 큰 변화가 없었던 반면 HCl은 배출허용기준을 근접하는 것으로 나타났다. HCl의 경우 대형폐기물을 30% 혼합 소각하였을 때 최고 18.4ppm의 배출농도를 나타내어 현행 배출허용기준(20ppm)에 근접함으로써 혼합소각이 적합하지 않음을 알 수 있었다. 그러나 대형폐기물을 20% 혼합소각 하였을 때는 생활폐기물만 소각할 때와 비교하여 약 2ppm 증가하는 수준에 그쳐 별도의 대기오염방지설비의 추가 없이도 20%까지 충분히 혼합소각이 가능할 것으로 판단되었다. 현재 운영 중인 생활폐기물 소각시설에서 대형폐기물을 혼합 소각할 경우, 혼합비율에 따라 소각특성과 Dust, SOx, NOx, CO, HCl 등의 대기오염물질 발생량과 농도에 변화가 있었으나 대형폐기물을 무게기준 20%까지 혼합 소각할 경우에는 현재 운영되고 있는 연소가스처리시설 만으로도 충분히 현행 대기오염물질 배출허용기준을 만족시킬 수 있음을 알 수 있었다. 본 연구결과 생활폐기물 소각시설에서 폐기물 부족현상을 해소하고 대형폐기물의 에너지화의 가능성을 알수 있었으며 유사도시의 소각시설 설치시 특성자료로 제공 하고자 하였다.