GOALI: Thermal Analysis of Landfills

填埋是永久性处置废物最常用的方法。 为了适当设计和操作填埋场和相关设施，需要彻底了解废物和衬垫材料内部发生的过程。 温度影响废物和衬里内发生的过程，也影响废物和衬里材料的性质和工程行为。 本GOALI研究的目的是调查温度波动和空间分布的温度在垃圾填埋场和调查温度对废物的工程性质的影响。 这些信息将用于确定固体废物和填埋成分的温度相关行为，以优化填埋场的性能。 这项研究将分四个主要阶段进行。 第一阶段是确定堆填区的温度状况。 然后将确定废物的热特性随温度的变化。 将制定一个数值模型，使用这些热特性，以预测温度分布在垃圾填埋场和进行参数评估。 最后，固体废物的工程性质将被确定为温度的函数。 这项研究将与劳伦斯理工大学、韦恩州立大学和联合废物工业公司合作进行。 调查结果将适用于堆填区的各种实际设计和运作方面。大学和工业界之间的合作将促进改进废物控制设施的设计和运作，并补充教育目标。 了解填埋场内的温度和废物随温度变化的行为，有望推动实践的发展。

Landfilling is the most common method used for permanent disposal of wastes. A thorough understanding of the processes occurring within wastes and liner materials is required for proper design and operation of landfills and associated facilities. Temperature affects the processes occurring within wastes and liners and also the properties and engineering behavior of both wastes and liner materials. The objective of this GOALI study is to investigate temperature fluctuations and spatial distributions of temperatures in landfills and investigate the effect of temperature on the engineering properties of wastes. This information will be used to determine temperature related behavior of solid wastes and landfill components to optimize performance of landfills. The study will involve four major phases. The first phase will be to identify the thermal regime of landfills. Thermal properties of wastes will then be determined as a function of temperature. A numerical model will be formulated using these thermal properties to predict temperature distributions within landfills and conduct parametric evaluations. Finally, engineering properties of solid wastes will be determined as a function of temperature. The study will be conducted with collaboration between Lawrence Technological University, Wayne State University, and Allied Waste Industries. Results of this investigation will be applicable to various practical design and operational aspects of landfills. Cooperation between universities and industry will promote improved design and operation of waste containment facilities as well as complement educational objectives. Knowledge of temperatures within a landfill and the temperature-dependent behavior of wastes is expected to advance the state-of-the-practice.