Wastes in Underground Coal Mines and Their Behavior during Mine Water Level Rebound—A Review

Backfill materials of various origin and composition, abandoned machinery, oils, PCB, gallery support material and cables are the main wastes occurring in underground coal mines during the period of their abandonment. Bearing in mind that under increasing societal pressure most if not all undergroun...

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Main Authors: Philip Mittelstädt, Nele Pollmann, Lotfollah Karimzadeh, Holger Kories, Christoph Klinger
Format: Article
Language:English
Published: MDPI AG 2023-11-01
Series:Minerals
Subjects:
Online Access:https://www.mdpi.com/2075-163X/13/12/1496
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author Philip Mittelstädt
Nele Pollmann
Lotfollah Karimzadeh
Holger Kories
Christoph Klinger
author_facet Philip Mittelstädt
Nele Pollmann
Lotfollah Karimzadeh
Holger Kories
Christoph Klinger
author_sort Philip Mittelstädt
collection DOAJ
description Backfill materials of various origin and composition, abandoned machinery, oils, PCB, gallery support material and cables are the main wastes occurring in underground coal mines during the period of their abandonment. Bearing in mind that under increasing societal pressure most if not all underground coal mines are going to close sooner rather than later, it is important to understand the interactions of these waste materials with rising mine water during mine water level rebound to prevent adverse environmental effects, especially on surface and groundwater. To this end, the composition of mine water at decant points as well as the hydrogeochemical, temporal and spatial dynamics of mine water during rebound requires quantification. In the first part of this paper, an overview of waste materials in underground coal mines is presented. The second part focusses on the experiences gained in the Ruhr area, a closed underground coal mining region in western Germany, where mine water rebound has been ongoing for decades. In this regard, the mine water modeling program Boxmodell was applied during regulatory approval procedures to predict the hydrodynamics and hydrogeochemical development of the water rebound. The results of these investigations allow deep insights into the interactions of rising mine water with wastes as well as the complex chemical evolution of mine water and potentially occurring contaminants (e.g., PCB). The experiences regarding wastes in underground coal mines and the geochemical evolution of rising mine water gained in the Ruhr area can be utilized to support the planning of mine closure in currently still active underground coal mining areas worldwide.
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spelling doaj.art-152bf73b432c4f3a9edd2104a5b3e1662023-12-22T14:26:33ZengMDPI AGMinerals2075-163X2023-11-011312149610.3390/min13121496Wastes in Underground Coal Mines and Their Behavior during Mine Water Level Rebound—A ReviewPhilip Mittelstädt0Nele Pollmann1Lotfollah Karimzadeh2Holger Kories3Christoph Klinger4DMT GmbH & Co., KG, 45307 Essen, GermanyDMT GmbH & Co., KG, 45307 Essen, GermanyDMT GmbH & Co., KG, 45307 Essen, GermanyDMT GmbH & Co., KG, 45307 Essen, GermanyDMT GmbH & Co., KG, 45307 Essen, GermanyBackfill materials of various origin and composition, abandoned machinery, oils, PCB, gallery support material and cables are the main wastes occurring in underground coal mines during the period of their abandonment. Bearing in mind that under increasing societal pressure most if not all underground coal mines are going to close sooner rather than later, it is important to understand the interactions of these waste materials with rising mine water during mine water level rebound to prevent adverse environmental effects, especially on surface and groundwater. To this end, the composition of mine water at decant points as well as the hydrogeochemical, temporal and spatial dynamics of mine water during rebound requires quantification. In the first part of this paper, an overview of waste materials in underground coal mines is presented. The second part focusses on the experiences gained in the Ruhr area, a closed underground coal mining region in western Germany, where mine water rebound has been ongoing for decades. In this regard, the mine water modeling program Boxmodell was applied during regulatory approval procedures to predict the hydrodynamics and hydrogeochemical development of the water rebound. The results of these investigations allow deep insights into the interactions of rising mine water with wastes as well as the complex chemical evolution of mine water and potentially occurring contaminants (e.g., PCB). The experiences regarding wastes in underground coal mines and the geochemical evolution of rising mine water gained in the Ruhr area can be utilized to support the planning of mine closure in currently still active underground coal mining areas worldwide.https://www.mdpi.com/2075-163X/13/12/1496coal minewaste materialBoxmodellreactive transportmine water level rebound
spellingShingle Philip Mittelstädt
Nele Pollmann
Lotfollah Karimzadeh
Holger Kories
Christoph Klinger
Wastes in Underground Coal Mines and Their Behavior during Mine Water Level Rebound—A Review
Minerals
coal mine
waste material
Boxmodell
reactive transport
mine water level rebound
title Wastes in Underground Coal Mines and Their Behavior during Mine Water Level Rebound—A Review
title_full Wastes in Underground Coal Mines and Their Behavior during Mine Water Level Rebound—A Review
title_fullStr Wastes in Underground Coal Mines and Their Behavior during Mine Water Level Rebound—A Review
title_full_unstemmed Wastes in Underground Coal Mines and Their Behavior during Mine Water Level Rebound—A Review
title_short Wastes in Underground Coal Mines and Their Behavior during Mine Water Level Rebound—A Review
title_sort wastes in underground coal mines and their behavior during mine water level rebound a review
topic coal mine
waste material
Boxmodell
reactive transport
mine water level rebound
url https://www.mdpi.com/2075-163X/13/12/1496
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