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독일의 Kuhstedt 매립지의 공기주입(을 통한 안정화) - Full Scale 운전의 결과와 Lab Scale Investigations 의 비교 -
( Marco Ritzkowski ),( Rainer Stegmann ),( Kai-uwe Heyer ) 한국폐기물자원순환학회 2002 APLAS Vol.2002 No.2
독일의 많은 오래된 매립지에서 수행된 조사를 통해, 혐기성분해로 인한 많은 양의 오염물질의 배출이 이루어진다는 것을 발견했다. 이러한 배출은 수십년간 또는 세기를 걸쳐 지속되었고, 환경에 상당히 부정적인 영향을 유발할 것이다. (Heyer et al., 1997). 독일의 법규(TASi, 1993)에서는, 복합적인 차수설계를 적용하는 폐기물의 캡슐화에 의해, 매립지 내부에서의 배출량에 대한 관리를 요구하고 있다. 현장 공기주입공법을 이용한 대규모 실험을 통해, 매립지 내부에서의 오염물질의 감소와 안정화에 의해, 배출 특성을 상당히 개선할 수 있다는 것을 발견하였다. 이를 위해 호기성 조건의 이행이 필수적인 조건이 된다. landfill simulation reactors (LSR) 에서 다양한 폐기물시료의 장기간 조사결과를 통해, 생물분해가능한 유기성 성분은 호기성 조건이므로 더욱 빨리 분해되고, 특히 침출수 내의 질소농도는 상당히 감소하는 것으로 조사되었다. The results of investigations carried out in many old landfills in Germany show that significant emissions occur under anaerobic conditions as they normally appear in landfill bodies. These emissions last for decades or even centuries and may result in a significant negative impact on environment (Heyer et al., 1997). The German legislation (TASi, 1993) postulates the conservation of the emission potential inside the landfill body by encapsulation of the waste applying a combination liner system. Extensive laboratory investigations, large scale tests and results of the in situ-aeration operation show that a significant improvement of the emission behavior can be achieved by stabilization and reduction of the pollutant potential in the landfill body. A necessary requirement is the implementation of aerobic conditions as a result of a calculated, controlled and time-limited aeration measure. The results of long-term investigation of different waste samples in landfill simulation reactors (LSR) show that biodegradable organic components are converted faster due to aeration and that especially nitrogen concentrations in the leachate may significantly be reduced.
( Marco Ritzkowski ),( Raiuer Stegmann ),( Kai-uwe Heyer ) 한국폐기물자원순환학회 2002 APLAS Vol.2002 No.1
The results of investigations carried out in many old landfills in Germany show that significant emissions occur under anaerobic conditions as they normally appear in landfill bodies. These emissions last for decades or even centuries and may result in a significant negative impact on environment (Heyer et al., 1997). The German legislation (TASi, 1993) postulates the conservation of the emission potential inside the landfill body by encapsulation of the waste applying a combination liner system. Extensive laboratory investigations, large scale tests and results of the in situ-aeration operation show that a significant improvement of the emission behavior can be achieved by stabilization and reduction of the pollutant potential in the landfill body. A necessary requirement is the implementation of aerobic conditions as a result of a calculated, controlled and time-limited aeration measure. The results of long-term investigation of different waste samples in landfill simulation reactors (LSR) show that biodegradable organic components are converted faster due to aeration and that especially nitrogen concentrations in the leachate may significantly be reduced.