Monitoring of Thermal and Gas Activities in Mining Dump Hedvika, Czech Republic

Określenie składowych ryzyka na podstawie próbki gleby ze składowiska górniczego przy zastosowaniu sekwencyjnej ekstrakcji BCR

“…Storage of tailings ended in 1998. [3,4] Hedvika dump forms a massive and flat-sprawling formation of about 32 ha. On the northern and western sides, it forms the border with the former J. Fučík Mine.…”

“…At present, Submission date: 28-12-2019 | Review date: 028-01-2020 the dump consists of a massive surface formation of gangue with an area of approximately 40.6 ha and an average height of disposed material in the range of 12-15 m. The mass is thus destined to produce smoke and endogenous fires. [4] Thermal processes have been recorded in various parts of the dump since the 1950s. However, according to the preserved documentation, they were locally eliminated, mainly by firefighters, covering with an insulating layer or by extraction.…”

“…Thus, since 2010, temperature monitoring and thermal activity observation have been carried out on the dump by means of thermometric probes. [4,5]…”

Identification of fire changes using thermal IR images: the case of coal-waste dumps

“…The obvious disadvantages include also the fact that the date and time of taking open-access satellite images are imposed, so the user has no influence over them [7]. Images took from a lower height using a drone have fewer restrictions [8]. In the case of such images, it is possible to plan the flight almost freely -adjust its height to the size of the object and determine the time of measurements.…”

Fire hazard in coal waste dumps – selected aspects of the environmental impact

“…Such fires constitute a source of emissions of gas substances to the atmosphere and increase the dust levels in air. Due to the high temperatures accompanying the fires, they contribute to the general safety hazard posed to people present within the outline of the dumps [8,9,10,11,12,13,14,15]. The main cause of the fires is the spontaneous process of low-temperature oxidation of coal and pyrite contained in the wastes from Carboniferous deposits.…”