Predictive Assessment of the Chemical Composition of Coal Ash in Reserve at U.S. Disposal Sites.

ABSTRACT: In the United States, more than 2 Gt of coal combustion residuals (i.e., coal ash) are stored in hundreds of disposal units. Recent federal regulations mandate the closure or retrofitting of most coal ash impoundments, presenting significant challenges for waste management. These regulatory pressures also present opportunities to reuse coal ash. However, the quality and quantity of discarded coal ash across the U.S. are not well known, even though this information is crucial for spurring its reuse for conventional and new material applications. This study describes a predictive model for the major element composition of coal ash in reserve at disposal sites of major U.S. coal-fired power plants. This model was constructed from coal purchase records of 705 power stations from 1973 to 2022 a

SUBMITTER: Jin Z 

PROVIDER: S-EPMC11924216 | biostudies-literature | 2025 Mar

REPOSITORIES: biostudies-literature