Prashant, Prashant and Kumbhakar, Dilip (2025) Challenges and Opportunities in Pond Ash Disposal in Opencast Mine Dumps. In: Innovative and Responsible Mining for Inclusive Growth. Springer Cham. ISBN 978-3-032-09928-0

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Abstract

The increasing generation of ash from coal-fired thermal power plants necessitates sustainable disposal strategies, particularly in mining regions where space constraints pose challenges. This study has evaluated the feasibility of integrating pond ash with overburden dumps in a large opencast coal mining project. A comprehensive assessment was carried out, incorporating field studies, route and traffic analyses, time-motion studies, and equipment performance evaluations. Key challenges identified include increased traffic congestion from ash-hauling operations, inefficiencies in mixing and dozing, and geotechnical stability concerns, particularly under wet conditions. The study also explores transportation alternatives, highlighting the cost-effectiveness of rail transport, though constrained by infrastructure, and the flexibility of road transport, albeit with congestion and safety risks. Seasonal variations, especially rainfall, were found to exacerbate dump stability concerns and runoff contamination. A detailed analysis of effect on production due to mixing of ash with overburden for an active coal mine is also presented in this paper. The study underscores the importance of strategic planning to accommodate ash with overburden mining operations.

Item Type:	Book Section
Uncontrolled Keywords:	Mining Technologies Oil and Gas Industry Critical Minerals Coal Transition, Environment and Climate Change Advance Geoscience
Subjects:	Methane Emission and Degasification
Divisions:	UNSPECIFIED
Depositing User:	Mr. B. R. Panduranga
Date Deposited:	30 Apr 2026 06:26
Last Modified:	30 Apr 2026 06:26
URI:	https://cimfr.csircentral.net/id/eprint/2997

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