Digital Technology's Role in Circular Waste Management: A Systematic Review
系统综述了2021至2025年间112篇文献，分析人工智能、物联网、区块链等数字技术如何促进循环经济，并评估其对可持续发展目标的影响，为研究者、政策制定者和技术专家提供参考。
ABSTRACT Combining circular economy ideas with digital tools offers a game‐changing way to tackle global sustainability problems. This paper focuses on how digital changes and circular economy models link up. A review has been conducted for 112 articles from 2021 to September 2025, using PRISMA‐2020 methodology. This study covered new tech like AI, IoT, blockchain, big data, and machine learning. It has been checked how these are used in environmental, social, and economic areas with respect to sustainable development goals (SDGs). The study shows that digital tech greatly boosts environmental advantages, mainly impacting responsible consumption/production (SDG 12) and climate action (SDG 13). This review points to job creation as a main socioeconomic advantage (SDG 8). However, there are still big problems in putting these ideas into action, like requiring lots of investment, keeping data safe, making systems work together, and handling tech waste. Moreover, a new three‐level idea that matches digital changes with SDG goals has been put forward. This idea gives a clear sense of how digital tools and circular economy ideas relate, while fixing some holes in past research methods. The research includes real‐world testing and mixes different fields for strong academic work. The results give key information for researchers, politicians, tech experts, and professionals who work on making circular economy systems digital. By showing clear links between tech progress and sustainability results, this study helps policy‐makers make smart decisions to create circular systems that are efficient, sustainable, and good for the economy worldwide.