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소각 바닥재의 탄산화를 통한 중금속 안정화 및 CO2 고정 KCI 등재

Stabilization of Heavy Metals and CO2 Fixation through Carbonation of Incinerator Bottom Ash

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한국폐기물자원순환학회지 (Journal of Korea Society of Waste Management)
한국폐기물자원순환학회 (Korea Society Of Waste Management)
초록

According to a report ‘2012 Present Condition of National Household Refuse Resource Recovery Facility’, about 582,178 tons/year of household refuse were processed in the incineration plant, and 465,087 tons/year of bottom ash and 117,091 tons/year of fly ash were produced respectively. As incineration ash contains many kind of heavy metals such as soluble salt, copper and lead, it may lead to the leaching potential of heavy metals according to the environmental change, so it requires special care in landfill and recycling. In this study CO2 was injected into the bottom ash, so that environmental stability such as leaching of heavy metals was reduced and increased the possibility of CO2 fixation ability of the bottom ash was analyzed. Bottom ash of the household refuse incineration plant of I City was used as the sample of the fixation ability particle size was divided into 3 sections to analyze its components before and after carbonation using XRF. Stability of the sample was identified by the leaching test through KSLT and TCLP, and CO2 fixation ability by the DT-TGA analysis. Test results of the fixation ability shows that stabilization of the bottom ash produced in the household refuse incineration plant by carbonation is evaluated as there is little environmental problem caused by heavy metals when it is utilized into the recycled aggregate, and economic profits can be expected due to securing new agents of the supply and demand for the recycled aggregates, the greenhouse gas emission reduction by CO2 fixation.

목차
I. 서 론
 II. 실험재료 및 실험방법
  1. 실험재료
  2. 실험방법
 III. 실험 결과
  1. 바닥재의 XRF 분석 결과
  2. 바닥재의 XRD 분석 결과
  3. 탄산화 처리 후 pH 변화
  4. 폐기물 용출 시험
 5. CO2 고정 능력
 IV. 결 론
 사 사
 References
저자
  • 이기석(충남대학교 환경공학과) | Ki-Seok Lee
  • 김영민(충남대학교 환경공학과) | Yeong-Min Kim
  • 현재혁(충남대학교 환경공학과) | Jae-Hyuk Hyun Corresponding author
  • 이우진(충남대학교 환경공학과) | Woo-Jin Lee