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      • 해양 매립지에서 공극수의 순환 정화

        ( Daisaburou Koga ),( Takayuki Shimaoka ),( Masataka Hanashima ),( Kentaro Miyawaki ),( Takeshi Yoshimochi ) 한국폐기물자원순환학회 2002 APLAS Vol.2002 No.2

        해양 매립지에서, 공극수(해수)는 매립 폐기물 층에서 거의 움직이지 않고, 매립 폐기물 내부는 혐기성 상태인 경향이 있다. 해양 매립지에서, 폐기물에 포함된 부패한 물질의 용출과 분해가 천천히 일어난다. 그 결과, 해양 매립지의 관리를 끝내기 위해서는 긴 시간이 걸린다. 우리는 관리 기간을 단축시킬 방법으로 매립 폐기물 층에서 공극수를 순환시키는 방법을 개발했다. 매립 폐기물 중에 함유된 부패된 물질의 용출과 분해가 이 방법에 의해 촉진될 것이다. 본 연구에서, 해양 매립지의 매립 폐기물 층의 내부를 모형화한 소각재를 채운 칼럼에 공극수를 순환시켰다. 우리는 매립된 폐기물의 정화와 안정화에서 해수 순환의 효과를 조사했다. 매립 폐기물 층에서 해수의 순환에 의해, 초기에는 소각재로부터 해수로 탄소와 질소성분이 용출되었는데, 시간이 지남에 따라 감소하였다. 미생물의 존재가 현재는 확실하다. 결과적으로, 매립 폐기물로부터 해수로 부패된 물질이 용출되는 것이 확실해졌고, 미생물과 관련된 유기물과 질소의 분해가 억제되었다. 현재, 부패된 물질의 주위를 순환하는 해수의 흐름에 의해 용출과 분해가 크게 영향을 받는 것으로 판명되었다. 게다가, 수압의 경사가 고정되어 있다면, 흐름은 눈에 띄게 변경될 것이다. 발생된 가스의 양은 물의 흐름에 영향은 주는 것으로 판명되었다. In a sea landfill site, the pore-water (sea water) hardly moves in the landfill waste layer, and the inside of the landfill waste layer tends to be in an anaerobic state. In a sea landfill site, elution and decomposition of corrupt substances which are included in waste become slow. As a result, a long period of time is taken to be able to finish the management of sea landfill disposal place. We are developing the method which circulates the sea pore-water in the landfill waste layer as a method of shortening a management period. I think that elution and decomposition of a corrupt substances, which are contained in the landfill waste, can be accelerated by this method. In this research, sea pore-water was circulated in the incineration ashes filling column which modeled the inside of the landfill waste layer of sea landfill site. We investigated the effect of circulation of sea water on purification, and stabilization of Landfill waste. By circulating the sea water in the landfill waste layer, the carbon and the nitrogen elements were eluted from incineration ashes to sea water in early stages of circulation of sea water, and decreased with progress of time. Existence of a microbe was confirmed at this time. As a result, it is confirmed that elution of the corrupt substances from reclamation waste to sea water, and decomposition of the nitrogen and organic substance in which the microbe participated, were checked. At this time, It turned out that elution of a and decomposition corrupt substances are greatly influenced by the discharge of the sea water which circulated around it. Furthermore, even if pressure gradient of water is fixed, the discharge can be changed significantly. It turned out that the amount of generating gas also affects the discharge of water.

      • CIRCULATION PURIFICATION OF THE SEA PORE-WATER IN SEA LANDFILL SITE

        ( Daisaburou Koga ),( Takayuki Shimaoka ),( Masataka Hanashima ),( Kentaro Miyawaki ),( Takeshi Yoshimochi ) 한국폐기물자원순환학회 2002 APLAS Vol.2002 No.1

        In a sea landfill site, the pore-water (sea water) hardly moves in the landfill waste layer, and the inside of the landfill waste layer tends to be in an anaerobic state. In a sea landfill site, elution and decomposition of corrupt substances which are included in waste become slow. As a result, a long period of time is taken to be able to finish the management of sea landfill disposal place. We are developing the method which circulates the sea pore-water in the landfill waste layer as a method of shortening a management period. I think that elution and decomposition of a corrupt substances, which are contained in the landfill waste, can be accelerated by this method. In this research, sea pore-water was circulated in the incineration ashes filling column which modeled the inside of the landfill waste layer of sea landfill site. We investigated the effect of circulation of sea water on purification, and stabilization of Landfill waste. By circulating the sea water in the landfill waste layer, the carbon and the nitrogen elements were eluted from incineration ashes to sea water in early stages of circulation of sea water, and decreased with progress of time. Existence of a microbe was confirmed at this time. As a result, it is confirmed that elution of the corrupt substances from reclamation waste to sea water, and decomposition of the nitrogen and organic substance in which the microbe participated, were checked. At this time, It turned out that elution of a and decomposition cornet substances are greatly influenced by the discharge of the sea water which circulated around it. Furthermore, even if pressure gradient of water is fixed, the discharge can be changed significantly. It turned out that the amount of generating gas also affects the discharge of water.

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