使用終了 非 生埋立地의 循環的 使用을 위한 選別物質의 活用 可能性 評價 (Reclaimed Products to Recycling and Energy Recovery for Sustainable Use of Closed Non Sanitary Landfills through Reclamation Works)

서지정보

· 발행기관 : 한국자원리싸이클링학회
· 수록지 정보 : 자원리싸이클링 / 21권 / 1호 / 17 ~ 29페이지
· 저자명 : 이병선, 나경덕, 한상국, 배재근, 오세은

초록

대전시 OO 권역 택지발지구내 불법매립지 선별•정비사업과정에서 회수된 선별결과물의 재활용성 및 에너지전환 가능성을 평가하였다. 본 연구에서 사용된 순환형 매립정비시스템(SLR-System, Sustainable Reclamation-System)은 수분함량 약 28.0%조건에서 약 91.4 ㎥/hr (about 130.61ton/hr)의 처리 성능을 보였으며, 선별결과물의 회수율과 순도는 선별토사가 약 98.9%와 약99.66%, 선별가연물류가 약 91.8%와 약 92.0%로 각각 측정되었다. 특히, 선별토사의 경우, 입도크기가 35 mm이하로 유기이물질 함량이 0.31%(V/V)로 재활용법적 기준치를 만족하였으며, 최대 약 98.42%까지 재활용이 가능한 것으로 평가되었다. 또한, 선별가연물의 경우, 저위발열량이 약 3,636 kcal/kg으로 RDF 품질기준을 만족하였으며 최대 약 84.43%까지 RDF 생산이 가능한 것으로 측정되었다.

영어초록

potential assessment of converting closed non sanitary landfills into sustainable landfill through the reclamation works(= landfill mining project) of illegal landfill discovered in land development site using Sustainable Landfill Reclamation system(SLR-system) was investigated. The SLR system had treatment capacity of 91.4 ㎥/hr (130.61ton/hr) in condition of 28.0% of water content. Recovery ratio and purity of sorted soil were 98.9% and 99.66%, respectively. Sorted combustibles were 91.8% and 92.0%, respectively. Especially, high heating value (HHV) and low heating value(LHV) of combustibles were 4,282kcal/kg and 3,636 kcal/kg, respectively, in considering the energy content and recovery ratio of combustibles. Therefore, combustibles separated from landfill site have higher value than Fluff RDF standard value(3,500kcal/kg) of MOE. RDF can be produced with combustibles by 84.43%. Averaged size and organic foreign matter content of the sorted soil were less than Ø35mm and 0.31%(V/V), respectively.
In addition, concentration of all contents of hazardous matters containing soils met safety standards. Therefore, it is possible to be recycled as refilling and cover materials to rebuild Sustainable landfills by 98.42%

참고자료

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