Although cement kiln co-processing (CKC) has been considered an important municipal solid waste (MSW) treatment method in recent years, there however still exist obstacles such as unclear technical feasibility and ambiguous legislation that impede its further development. Addressing these barriers remains difficult as a comprehensive understanding of CKC from an MSW management perspective (which is a major challenge for policy makers) is lacking in existing studies.

Therefore, this study adopted Material Flow Analysis, Life Cycle Assessment and Net Present Value evaluation methods to quantitatively analyze the waste reduction effect, energy efficiency, environmental impact and economic performance of CKC in order to provide an important basis for determining its feasibility and policy direction in comparison to existing MSW treatment technologies.

The results showed that CKC had a waste reduction rate of up to 99.5%, and 90% lower environmental emissions than incineration. However, from a life cycle perspective, the net environmental impact of CKC was not as significant as incineration and mechanical biological treatment because its coal saving effect has a relatively lower environmental impact mitigation potential compared to the potential from electricity generation brought by incineration. Furthermore, the proposed MSW treatment fee subsidy for CKC was 59 CNY/tonne, reflecting a 34% reduction from current incineration subsidy fee.

These findings are important for many countries since the main barriers to CKC development are similar. Improving the comprehensive understanding of CKC could help policymakers formulate precise promotion planning and reasonable incentive policies.

尽管水泥窑协同处理（CKC）近年来被认为是一种重要的城市固体废物（MSW）处理方法，但仍存在技术可行性不明确、立法不明确等障碍，阻碍了其进一步发展。解决这些障碍仍然很困难，因为现有研究缺乏从 MSW 管理的角度（这对政策制定者来说是一个主要挑战）对 CKC 的全面理解。

因此，本研究采用物流分析、生命周期评估和净现值评估方法，对CKC的减废效果、能源效率、环境影响和经济绩效进行定量分析，为确定其可行性和政策方向提供重要依据。与现有的 MSW 处理技术相比。

结果表明，与焚烧相比，CKC 的废物减少率高达 99.5%，环境排放量降低 90%。然而，从生命周期的角度来看，CKC 的净环境影响不如焚烧和机械生物处理那么显着，因为与焚烧带来的发电潜力相比，其节煤效果的环境影响缓解潜力相对较低。此外，建议的 CKC 垃圾处理费补贴为 59 元/吨，比目前的焚烧补贴费减少了 34%。

这些发现对许多国家都很重要，因为 CKC 发展的主要障碍是相似的。提高对CKC的全面了解，有助于决策者制定精准的推广规划和合理的激励政策。