Tag Archives: Impoundments
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Beneficiation Deep Dive: Carbon Reduction Technologies
This report surveyed and categorized emerging and commercially available ‘beneficiation’ technologies, which are used to process coal combustion products to meet specifications for various beneficial uses in construction, manufacturing, agriculture, and other industries. Researchers focused on assessing limitations of carbon reduction technologies that enable use of fly ash in concrete. Drawing on vendor data and […]
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Evaluation of Potential Failure Modes for Coal Combustion Residual Impoundments
Prompted by recent major failures at coal combustion residual impoundments, this study examined U.S. Environmental Protection Agency data on more than 400 impoundments to assess the possible causes of failures.
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Corrective Action for Closed and Closing Ash Ponds
Over the next several years, the federal Coal Combustion Residuals Rule will trigger the closure of many utility-operated coal ash ponds, and groundwater monitoring will likely reveal the need for corrective actions such as barrier walls and geochemical manipulation. This report identifies and evaluates groundwater-related corrective actions that could be integrated with pond closure, with […]
