- Coal and biomass
Coal products and dust have the ability to self combust under certain conditions. Biomass plants are as particularly prone as the product and dust can be composed of a multitude of unknown refuse items.
Mixed recyclable waste, collected, sorted, stockpiled and processed from highly combustible materials is highly susceptible to potential ignition from processing machinery
Spontaneous combustion is the principle cause of laundry fires. Usually fires start in the centre of a pile of clean textiles. As the heat increases, the temperature starts to rise exponentially and within a few hours auto-ignition occurs.