Ecological Systems and Devices Annotation << Back Assessment of the Quality of Ash and Slag Waste from Thermal Power Plants and the Efficiency of Their Processing Shubov L.Ya., Doronkina I.G., Borisova O.N. Based on an analytical study of a set of patented technological solutions, a methodology for assessing the quality of ASW as an object of processing and disposal is proposed. A rationale for the feasibility of using such a methodology is given. Resource-saving technologies for waste processing that have undergone pilot and pilot testing are presented. The reasons for the feasibility of largescale involvement in the processing and disposal of technogenic raw materials concentrated in artifi cial accumulations of waste that pollute the environment are considered. It is noted that resource effi ciency characterizes the resource-saving system in terms of the degree of waste utilization and the quality of the resulting products (while minimizing costs and environmental risks). The criteria for resource effi ciency of waste and secondary raw material processing are noted: the degree of waste utilization, technological indicators of the processes used, indicators of new products, specifi c energy consumption. An assessment of resource effi ciency is given using ASW as an example. The fundamental directions of ASW processing and disposal and ways to improve their quality as secondary raw materials are shown. Keywords: technology, waste management, secondary raw materials. DOI: 10.25791/esip.1.2025.1498 Pp. 34-40.