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침식 모델을 이용한 공동체와 통제가 가능한 닫힌 계 처분 시설에서의 폐기물 안정화에 관한 연구
( Kazuei Ishii ),( Tohru Furuichi ),( Noboru Tanikawa ),( Takanori Honma ) 한국폐기물자원순환학회 2002 APLAS Vol.2002 No.2
일본에서는, 공동체와 통제가 가능한 닫힌 계 처분시설(CSDFs)이 제안되고, 건설되고 있다. CSDFs에서, 폐기물의 안정화는 살수(즉, 인공강우)와 같은 방법에 의해 촉진될 수 있다. 본 연구에서는, CSDFs에서 바닥재 층으로 살수하는 양과 비율, 빈도를 조사할 것을 제안하였다. 이 모델에서는, 고상과 고정된 액상 사이의 물질 이동이 고려되었다. 초기에 TOC의 용출 특성을 조사고, 나중에 모델에서의 매개변수를 결정하고, 모델의 유효성을 평가하기 위해 몇몇 칼럼 실험이 실행되었다. 계산된 값과 실측된 값의 일관성이 이 침식 모델이 이 실험 기간에 대해서는 확실함을 보여준다. 본 연구에 기초하여, TOC성분을 효과적으로 씻어내기 위해 바닥재 층의 함수량을 일정하게 유지하는 것이 바람직하다고 제안되었다. In Japan, community and controllable closed system disposal facilities (CSDFs) have been proposed and constructed. In CSDFs, waste stabilization can be promoted by methods such as the sprinkling of water (i.e. artificial rainfall). In this study, a washout model was proposed to investigate the amount, rate and frequency of water sprinkling onto bottom ash layers in CSDFs. In this model, mass transfer between solid and immobile water phases was considered. Some column experiments were carried out, initially to investigate the characteristics of elution of total organic carbon (TOC), and later to determine parameters in the model and to evaluate the effectiveness of the model. The consistency of calculated values with observed values showed that this washout model is valid for this experimental period. It is suggested, based on this study, that it might be desirable to keep the water content of the bottom ash layers constant, in order to wash out TOC constituents effectively.
( Kazuei Ishii ),( Tohru Furuichi ),( Noboru Tanikawa ),( Takanori Honma ) 한국폐기물자원순환학회 2002 APLAS Vol.2002 No.1
In Japan, community and controllable closed system disposal facilities (CSDFs) have been proposed and constructed. In CSDFs, waste stabilization can be promoted by methods such as the sprinkling of water (i.e. artificial rainfall). In this study, a washout model was proposed to investigate the amount,rate and frequency of water sprinkling onto bottom ash layers in CSDFs. In this model, mass transfer between solid and immobile water phases was considered. Some column experiments were carried out, initially to investigate the characteristics of elution of total organic carbon (TOC), and later to determine parameters in the model and to evaluate the effectiveness of the model. The consistency of calculated values with observed values showed that this washout model is valid for this experimental period. It is suggested, based on this study, that it might be desirable to keep the water content of the bottom ash layers constant, in order to wash out TOC constituents effectively.