关键词: 固废, 技术趋势, 政策协同, 循环经济, 环境风险防控

Abstract:

Driven by the global green transition and the dual-carbon strategy, solid waste governance is undergoing a profound transformation from end-of-pipe treatment to high-value resource recovery, life-cycle risk control, and intelligent management. Based on references data from the past decade, patent data from the past two decades, and multidimensional evidence on institutional collaboration and regional distribution, this study systematically reviews the research hotspots and technological trajectories in the field of international solid waste governance. The results indicate that the number of relevant references has grown at an average annual rate of about 11% over the past decade, with China, the United States, and Japan ranking among the top in publication volume, although China still lags behind developed countries in highly cited papers. Patent analysis shows that global patent activity in solid waste governance has steadily increased over the past twenty years, with China leading in application volume, particularly in incineration, landfill monitoring, sorting equipment, and material reutilization. However, gaps remain in advanced equipment, precision sensing, and the efficient treatment of complex waste streams. Institutional and regional collaboration reveals a “multi-core and multi-regional” structure, with research hotspots increasingly focusing on the circular economy, digitalization, and risk prevention. Intelligent recognition, high-value resource recovery, and coordinated pollution and carbon reduction have become key directions. Overall, China has made notable progress in bulk waste utilization and hazardous waste treatment, but it remains urgent to establish a technology system centered on fundamental theories and key innovations to advance high-quality development and risk control. In view of global trends, this study proposes strengthening intelligent governance, achieving breakthroughs in core technologies, and promoting synergy between resource utilization and carbon reduction, thereby providing a reference for building a globally competitive solid waste governance model.

Key words: solid waste')">

solid waste, technological trends, policy coherence, circular economy, environmental risk control