원저(原著) : 산업부산물을 활용한 하수슬러지 고화재의 혼합비에 따른 고화물의 특성에 관한 연구
분야
공학 > 환경공학
저자
형원길 ( Won Gil Hyung ) , 안양진 ( Yang Jin An ) , 문경주 ( Kyoung Joo Mun ) , 윤성진 ( Seong Jin Yoon )
발행기관
한국폐기물자원순환학회(구 한국폐기물학회)
간행물정보
한국폐기물자원순환학회지 2012년, 제29권 제7호, 681~688쪽(총8쪽)
파일형식
08206922.pdf [무료 PDF 뷰어 다운로드]
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    영문초록
    This study aims to develop solidifying agents of sewage sludge using industrial By-Products and evaluate applicability of the solidified sewage sludge. The result of this study shows that it was possible to reduce water content of the cover materials to more than 50% in a short time as a result of the excellent hygroscopic function of inorganic binder made from industrial by-products and the granulation of sludge. The result suggests that the appropriate mixed ratio of (PSA + CPA) - (GBFS + SM1) - (SAS + SM2) is 60-25-15, and input ratio of solidifying agent is 48%, considering the applicability of the facilities, including mixing performance and availability of discharge, as well as the percentage of moisture content of the solidified sewage sludge, pH, and exothermic temperature. The solidified sewage sludge made using industrial by-products met more than the standard of unconfined compressive strength 0.5 kg/cm2 (as for cover materials 0.1 MPa) in 7 days due to ground granulated blast furnace slag, high-calcium fly ash, and SAS. As a result valid resource recovery is possible through the land treatment of sewage sludge by inducing in-situ stabilization of heavy metals and property strengths through the reactivity of industrial by-products.
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