Abstract
In 1988, a landfill closure law went into effect in Japan. The law stipulates requirements related to landfill closure conditions such as leachate quality, landfill gas conditions, and the interior temperature of the landfill site. The landfill closure standard influences landfill stabilization decision tools. Presumably, the calories of the leachate reflect the landfill biodegradation and its chemical reactions. The landfill stabilization decision tools and closure decisions are affected by the leachate temperature and quality. The total calories from discharged leachate reflect heat generation conditions inside the landfill and its waste stabilization situation.
Additionally, relations among the pollutant load amounts in leachate, the landfilled waste amount, and the landfill layer depth are clarified through caloric measurements. Results clarified that the leachate quality, temperature, and amount are useful but simple parameters for decision tools used to assess landfill stabilization and closure.
