The occurrence of elevated temperatures within landfills is a challenging issue for landfill operators to detect and correct. Little is known regarding the causes of elevated temperatures (ETs) or the number of landfills currently operating under such conditions. Therefore, the goal of this research was to determine which landfills within Florida have been impacted by ETs, and to develop a more complete understanding of the factors that may lead to these landfills becoming elevated temperature landfills (ETLFs). Historical landfill gas wellhead data, waste deposition reports, and landfill site geometry were collected for 27 landfill cells through the Florida Department of Environmental Protection electronic document management system, OCULUS database and from landfill operators and owners. These data were evaluated to quantify the characteristics that result in landfills having ‘elevated’ temperatures. Gas data included landfill gas temperatures and methane, carbon dioxide, and balance gas content. Furthermore, landfill maps were created in ArcGIS to observe spatial distribution of ETs in landfills over time. Upon analysis of the landfill gas wellhead data, it was discovered that 74% of studied landfill cells had ET readings; regulatory limits specify a maximum allowable gas temperature of 55 °C (131 °F). It was discovered that 37% of landfill cells contained MSW ash; of these cells, 90% of them are considered ETLFs. ETLF cells are on-average double the site area and approximately 6 m deeper than the average non-ETLF cell. Furthermore, results suggest that heat propagation in most landfills is limited; however, heat propagation is possible if gas wells are turned off for an extended time period.

垃圾填埋场内高温的发生对于垃圾填埋场运营商进行检测和纠正是一个具有挑战性的问题。对于升高的温度（ET）的原因或目前在这种条件下运行的垃圾填埋场的数量知之甚少。因此，这项研究的目的是确定佛罗里达州的哪些垃圾填埋场受到了ET的影响，并对可能导致这些垃圾填埋场变成高温垃圾填埋场（ETLF）的因素有了更全面的了解。通过佛罗里达环境保护署电子文档管理系统，OCULUS数据库以及垃圾填埋场运营商和所有者，收集了27个垃圾填埋场的历史垃圾填埋气井口数据，废物沉积报告和垃圾填埋场的几何形状。对这些数据进行了评估，以量化导致垃圾掩埋场温度升高的特征。气体数据包括垃圾填埋气体温度，甲烷，二氧化碳和平衡气体含量。此外，在ArcGIS中创建了填埋图，以观察随时间推移填埋场中ET的空间分布。通过对垃圾填埋气井口数据的分析，发现74％的垃圾填埋室具有ET读数；法规限制规定最高允许气体温度为55°C（131°F）。发现37％的垃圾填埋场中含有城市固体废弃物灰分。在这些细胞中，有90％被认为是ETLF。ETLF细胞平均平均占位面积的两倍，比平均非ETLF细胞深约6 m。此外，研究结果表明，大多数垃圾填埋场的热量传播受到限制。然而，