Progress and prospects of resource utilization technologies for bulk industrial solid wastes
SANG Shuxun
CAO Liwen
GUO Yuliang
WU Jinna
LIU Shiqi
LI Ziyi
XIANG Wenxin
XU Ang
BAI Yansong
XIE Honggao
WANG Fengbin
LIANG Shuo
ZHANG Rui
LI Jiayi
TAN Lulin
Abstract：The vigorous development of the resource utilization technology and industry for bulk industrial solid wastes(BISWs)is a key initiative for implementing China's"dual carbon"strategy and promoting the circular economy.This paper systematically reviews the technolog-ical pathways and engineering application scenarios for the resource utilization of four typical industrial solid wastes,including fly ash,steel slag,red mud and alkali slag.The technology for preparing geopolymers derived from industrial solid wastes is the focus of analysis.A pro-spective discussion of the development directions of BISWs resource utilization technologies is conducted from three perspectives:multi-source solid waste synergistic utilization,multi-field comprehensive synergistic utilization,and integration of resource utilization with carbon emis-sion reduction.The analysis indicates that the resource utilization technology of BISWs is an e-merging sector with broad development prospects.It can be applied in construction materials,agricultural materials,environmental protection materials,recovery of valuable components,and the preparation of high-value-added products and other fields,with huge development po-tential.From the perspective of large-scale industrial application scenarios,production of con-struction materials and green mine backfilling have emerged as priority directions for the re-source utilization of BISWs."Multi-source synergy,multi-field integration and the unity of pollution reduction and carbon mitigation"represent the overarching development trend.First-ly,the joint utilization of different solid wastes such as slag,steel slag and fly ash is promoted by the synergy of solid waste sources,which is characterized by"component complementarity and activity synergy".Secondly,guided by the"value gradient"application fields,the limita-tions of single-sector utilization are overcome to establish an integrated a comprehensive utili-zation system.Thirdly,focused on the dual objective of"pollution reduction and carbon miti-gation",the integration of resource utilization and carbon emission reduction goals is promoted by connecting solid waste carbonation with CO2 mineralization through functional synergy.This study provides theoretical support and practical references for technological development,industrialization promotion and formulation of relevant policies in the BISWs resource utiliza-tion industry,thereby contributing to China's"dual carbon"goals and the construction of a Beautiful China.
Keywords：bulk industrial solid wastesgeopolymersmulti-type solid waste synergymulti-field synergistic utilizationresource utilization and carbon reduction
Publication Date：2025-11-30
Online Publishing Date：2026-01-09(First online date of this platform, not the publication date of the document)
Pages：20( 1276-1294,1400 )