Spontaneous combustion of shale spoils at a sanitary landfill

摘要

Shale deposits excavated from the Upper Cretaceous, Eagle Ford Formation for a sanitary landfill near Dallas, Texas sponta- neoursly combusted. The shale is dark gray in color, with 3-4/100 fractional organic carbon, and no lignite seams. Gradual sifting and segregation of fine particles, having high surface area per unit volume, along with moisture trapped in the pile as it accumulated led to spontaneous combustion. Hot summer temperatures compounded the problem by heating the pile and preventing heat from efficiently venting to the atmosphere.