The Research Status and Progress on the Utilization of Coal Fly Ash: A Review

Coal fly ash (CFA), solid waste from the thermal power plant, is gaining attention as an alumina content substitute, but its production has long been considered to be problematic in environmental management. Many researchers have proposed and developed utilization technologies that can help to solve these problems by utilizing large amounts of the CFA. This review aims at pointing out aspects for CFA utilization; one aspect of the utilization technology that has had a great impact on the material society is how it affects the environment, and the other is the recovery of rich minerals. The current research status, progress, and future scope of research on CFA will be reviewed in this paper based on comprehensive research data. More research is required to provide a better understanding of the reaction mechanism and economic advantages of CFA. This review paper provides existing opportunities to motivate researchers to be involved in this study.