Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Transport of Waste Material Contaminants during Mine Water Level Rebound in Underground Coal Mines of the Ruhr Area, Germany – Application of Finite-Volume Reactive Transport Modelling

Version 1 : Received: 28 June 2023 / Approved: 29 June 2023 / Online: 29 June 2023 (14:15:17 CEST)

How to cite: Karimzadeh, L.; Pollmann, N.; Mittelstädt, P.; Klinger, C. Transport of Waste Material Contaminants during Mine Water Level Rebound in Underground Coal Mines of the Ruhr Area, Germany – Application of Finite-Volume Reactive Transport Modelling. Preprints 2023, 2023062161. https://doi.org/10.20944/preprints202306.2161.v1 Karimzadeh, L.; Pollmann, N.; Mittelstädt, P.; Klinger, C. Transport of Waste Material Contaminants during Mine Water Level Rebound in Underground Coal Mines of the Ruhr Area, Germany – Application of Finite-Volume Reactive Transport Modelling. Preprints 2023, 2023062161. https://doi.org/10.20944/preprints202306.2161.v1

Abstract

In this paper an overview of waste materials in underground coal mines is presented, whereas waste materials can be of anthropogenic or geogenic origin. Complex interactions with mine water and waste materials take place, especially during mine water level rebound. Bearing in mind that under the increasing societal pressure most, if not all underground coal mines are going to be closed rather sooner than later, it is important to understand these interactions and to predict the composition and dynamics of mine water lever rebound in underground coal mines to prevent adverse effects to the environment, especially receiving waters and drinking water resources. The second part of this article 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 modelling program DMT-Boxmodel has been developed and applied to predict the hydrodynamics and hydrogeochemical development of the water rebound. As an example, simulation results of water rebound as well as solute and PCB transport in central province of Ruhr mining area are compared to the monitoring data, and predictions over 3 decades are given. The experiences gained in the mine water management in Ruhr area can be applied in mining areas worldwide.

Keywords

Coalmine: Waste material; DMT-Boxmodel; Reactive transport; Mine water level rebound

Subject

Environmental and Earth Sciences, Waste Management and Disposal

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