Highlights•Coal gangue has been applied in building material, energy, agriculture and other
industries.•Negative environmental problems cannot be ignored in the utilization of coal …

Coal mine fires are insidious, persistent, and as widespread as the occurrence of coal itself,
yet their potential adverse human health impacts have been poorly characterised. We aimed …

Abstract In the United States, coal consumption in the last 12 years has declined from
1,045,140 million short tons in 2007 to 539,420 million short tons in 2019, a decrease of …

Coal fires occur in underground natural coal seams, in exposed surface seams, and in coal
storage or waste piles. The fires ignite through spontaneous combustion or natural or …

The prospect of subsurface structures taking uncontrollable fire is a significant cause of
stress held by people from all over the world. Mine fires and explosions have caused …

This paper presents underground coal fires (UCF) induced natural ventilation through a U-
shaped porous channel. Height of the U-shaped channel (the fire depth) is one of key …

Long-term spontaneous combustion of coal has caused serious ecological and
environmental problems. Only in recent years has it received growing popularity to …

A wide variety of natural catastrophes are induced by coal mining, with fire hazard being one
of the most significant threats to underground engineering structures. In recent years, there …

Detailed geochemistry similarities between the burning coal cleaning rejects (BCCRs) and
non-anthropogenic geological environments are outlined here. While no visible flames were …

Abstract Coal mining in Santa Catarina, South Brazil, impacted the environment by means of
a large number of coal waste piles emplaced over the old mine sites and the adjacent areas …