Abstract
This review aims to analyze the processing techniques employed for coal fly ash (CFA) and their implications. The study addresses the research problem of enhancing CFA utilization while minimizing environmental impacts. The review is based on the principles of sustainable development, circular economy, and resource conservation. It draws upon theories related to waste management, materials science, and environmental engineering. A systematic literature review was conducted, analyzing research articles, technical reports, and industry publications. The review encompasses a comprehensive examination of processing techniques, including separation, beneficiation, utilization, and treatment methods. The research techniques employed involved data synthesis and analysis of the identified studies. The review highlights the effectiveness and limitations of various processing techniques for CFA, such as electrostatic separation, magnetic separation, and froth flotation. It provides insights into the improvements achieved through processing, including enhanced CFA quality, expanded applications, and resource recovery. The findings emphasize the importance of comprehensive characterization of CFA, understanding its composition and properties, and optimizing processing methods to maximize its potential. The research contributes to the academic understanding of CFA processing techniques, providing a foundation for further studies in the field. Managerially, it offers guidance to industries involved in CFA utilization, promoting sustainable waste management practices and resource conservation. The review has significant social implications by reducing the environmental impact associated with CFA disposal and supporting the development of circular economy principles.