Modélisation et suivi de la remontée de l’eau de mine dans un complexe abandonné de mine de charbon: Mine de Siersza, Bassin houiller Haute Silésie, Pologne

Banks, David; Frolik, A.; Gzyl, Grzegorz; Rogoż, M.

doi:10.1007/s10040-009-0534-z

Cited by 11 publications

(7 citation statements)

References 12 publications

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“…Im Hinblick auf mögliche Grubenwasserübertritte in überlagernde Aquifere oder gar Oberflächengewässer ist es unabdingbar, die Transportwege und Schadstofffrachten aus dem Grubengebäude zu kennen. Auch dabei gibt es vielversprechende Modellansätze, die Schadstoffentwicklung und -menge zu prognostizieren (Banks et al 2010;Wolkersdorfer 2008). In erster Linie versuchen solche Modelle den Ursprung, die Größenordnung und den zeitlichen Verlauf von potenziellen Schadstoffquellen zu berechnen (Adams and Younger 2001).…”

Section: Modellanwendungenunclassified

Grundwasser in ehemaligen deutschen Steinkohlenrevieren – ein wissenschaftlicher Blickwinkel auf Grubenflutungen

Kessler

Mugova

Jasnowski-Peters

et al. 2020

Grundwasser - Zeitschrift der Fachsektion Hydrogeologie

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Zusammenfassung Zum Ende des Jahres 2018 wurde in Deutschland der Steinkohlenbergbau eingestellt. Damit beginnt auch in den bis zuletzt aktiven Revieren die Phase des Nachbergbaus inklusive einer dauerhaften Wasserhaltung. Diese beinhaltet typischerweise eine teilweise Grubenflutung und die Ableitung von Grubenwasser in nahegelegene Vorfluter. Im Blickpunkt der öffentlichen und wissenschaftlichen Diskussion stehen bergbauliche Schadstoffquellen und deren Risiken für die oberflächennahen Trinkwasserressourcen. Es existieren eine Reihe Kriterien und Kontrollmechanismen, um potenziellen Schadstoffaustrag zu erkennen und zu verhindern. Dazu zählen moderne Monitoringprogramme und Modellanwendungen, welche bestehende Schadstoffprognosen verbessern können. Daneben ist auch eine rechtlich und fachlich begründete Bewertung von Gefahrenszenarios eine entscheidende Größe für nachhaltiges Risikomanagement. Der Grubenwasseranstieg eröffnet jedoch auch Chancen, ehemalige Bergwerke für energetische Nutzungen umzurüsten. Bereits heute werden Heizkraftwerke mit Grubenwasser betrieben und es besteht großes Ausbaupotenzial. Dieser Beitrag diskutiert die Chancen und Risiken von Grubenflutungen in Deutschland und gibt einen Ausblick, welche Entwicklungen und Herausforderungen in Zukunft zu erwarten sind.

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Section: Modellanwendungenunclassified

Grundwasser in ehemaligen deutschen Steinkohlenrevieren – ein wissenschaftlicher Blickwinkel auf Grubenflutungen

Kessler

Mugova

Jasnowski-Peters

et al. 2020

Grundwasser - Zeitschrift der Fachsektion Hydrogeologie

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“…Less mineralized water of shallower circulation accumulates in the upper part, while highly mineralized water accumulates in deeper parts. Deep water contains very high concentrations of sulfates, iron and other ions associated with pyrite oxidation [19,[29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

“…In Poland, the phenomenon of stratification is documented for the Upper Silesian Coal Basin (USCB) and can be found in the studies of Frolik [38] or Banks et al [30]. So far, the literature does not describe the stratification in flooded hard coal mines in Lower Silesia.…”

Section: Introductionmentioning

confidence: 99%

Groundwater Chemistry and Stratification in the Flooded Hard-Coal Mine Shaft “Nowy I” (Nowa Ruda Region, SW Poland)

Chudy

Worsa-Kozak

Wójcik

2020

Water

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The flooding of unprofitable underground mines is one of the methods of their closure. After the drainage of the mine has stopped, the voids left in the rock mass as a result of mining, are filled with inflowing groundwater. In this way, reservoirs of groundwater with specific physicochemical parameters are formed. These parameters depend on the interaction of the water flowing into the workings with the rock formations. It was the economic situation in the 1990s that led to the closure of hard coal mines in the Nowa Ruda Coal Basin, where the flooded “Nowy I” shaft is located. In that shaft, in 2008, hydrogeological research was performed and groundwater samples from five various depths were collected. The aim of the study was to recognize if groundwater stratification occurs in the shaft. In 2015, a sample of the water outflowing through the “Aleksander” adit was taken to check the potential influence of mine flooding on the environment and to confirm the changes in groundwater chemistry over time. These were the first, and so far, the only studies on the chemical composition of water in the flooded mine in that area. The article presents results of the preliminary research, which confirmed the existence of not obvious hydrogeochemical stratification in the shaft. It can be assumed that below the depth of 350 m, the water circulating through mining excavations exhibits the highest electrical conductivity and the highest concentration of Ca2+, K+, SO42−, Fetot. In the depth range of 320–380 m there is a transition zone, in which a decrease of Eh value and a change of reduction and oxidation is recorded. Above this zone, infiltration water inflow, from outside the shaft casing, dominates. The research shows that it would be necessary to perform additional sampling of the water in the shaft at greater depths, as well as to perform isotope analysis and periodical tests for at least several years. This would allow for a more complete characterisation of hydrogeochemical processes taking place in the flooded mine.

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“…Donovan and Leavitt [5] estimated that all of the Pittsburgh seam coal mines in West Virginia and Pennsylvania, USA, contained 5 × 10 12 liters of water as of 2004. Water in active below-drainage mines must be pumped to keep working sections dry [6]. Without pumping, flooded or flooding below-drainage mines form "pools" that may eventually discharge at the surface through portals, boreholes, or fractures.…”

Section: Introductionmentioning

confidence: 99%

Mine Flooding History of a Regional Below-Drainage Coalfield Dominated by Barrier Leakage (1970–2014)

Donovan

Perry

2019

Geofluids

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A 44-year record of water level fluctuations in a series of adjacent closed underground mines documents the history of closure and mine flooding in the Fairmont Coalfield, one of the oldest coal mining districts in the Pittsburgh coal basin, West Virginia, USA. As closures proceeded and mines began to flood, US environmental regulations were first enacted mandating mine water control and treatment, rendering uncontrolled surface discharges unacceptable. The purpose of this study is to present this flooding history and to identify critical events that determined how mine pools evolved in this case. Also examined is the strategy developed to control and treat water from these mines. Flooding is visualized using both water level hydrographs and mine flooding maps with the latter constructed assuming mine water hydraulic continuity between one or more mines. The earliest flooding formed small pools within near-surface mines closed prior to 1962 yet still pumped following closure to minimize leaking into adjacent still-active workings. These subpools gradually enlarged and merged as more closures occurred and the need for protective pumping was removed, forming what is today referred to as the unconfined Fairmont Pool. Later, deeper mines, separated by intact updip barriers from the Fairmont Pool, were closed and flooded more gradually, supplied in large part by leakage from the Fairmont Pool. By 1985, all mines except 2 had closed and by 1994 all had fully flooded, with the Fairmont Pool interconnected to deeper single mine pools via barrier leakage. As protective pumping ceased, the Fairmont Pool rose to a water level 3 m higher than surface drainage elevation and in 1997 discharged from an undermined section of Buffalo Creek near the Monongahela River. The principal mine operator in the basin then designed a pumping system to transfer water from the Fairmont Pool to their existing treatment facilities to the north, thus terminating the discharge. It may be concluded that the progress of mine flooding was influenced by mining history and design, by the timing of closures, by barrier leakage conditions, and by geologic structure. A key element in how flooding proceeded was the presence of a series of intact barriers separating deep from shallow mines. The shallow mines closed and flooded early, but then lost sufficient water by barrier leakage into the deeper mines to delay the completion of flooding until after the deep mines had all closed and flooded as well. Intensive mine water control has continued from the 1997 breakout to the present. The final water control scheme was likely unanticipated and serendipitous; future district-wide mining efforts should be advised to consider in advance closeout strategies to control mine water postmining.

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Modélisation et suivi de la remontée de l’eau de mine dans un complexe abandonné de mine de charbon: Mine de Siersza, Bassin houiller Haute Silésie, Pologne

Cited by 11 publications

References 12 publications

Grundwasser in ehemaligen deutschen Steinkohlenrevieren – ein wissenschaftlicher Blickwinkel auf Grubenflutungen

Grundwasser in ehemaligen deutschen Steinkohlenrevieren – ein wissenschaftlicher Blickwinkel auf Grubenflutungen

Groundwater Chemistry and Stratification in the Flooded Hard-Coal Mine Shaft “Nowy I” (Nowa Ruda Region, SW Poland)

Mine Flooding History of a Regional Below-Drainage Coalfield Dominated by Barrier Leakage (1970–2014)

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