Abstract Mixed plastics from municipal solid waste are usually recycled in suitable Material Recovery Facilities (MRFs) following separate collection. These plants allow the sorting of individual plastics with variable performance depending on the technologies adopted. The evaluation of the performance of MRFs is also conducted with different approaches, even in terms of timescales, making the results difficult to compare. In this context, this study presents a comprehensive techno-economic approach to evaluate the performance of a MRF for plastic waste recovery. As a support, the Molfetta MRF case study (Southern Italy) was considered with an inlet plastic amount of about 19,000 t/year. The methodological proposal was based on the analysis of the quantity and composition of the different incoming waste streams, calculation of the Purity Index (PI) and Recovery Index (RI), quantification of the mass balance as well as accurate economic assessment. PI and RI assess the technical performance of the facility. They achieved the highest values (>95 %) for manual and optical sorting indeed they reached good values (70–80 %) for dimensional one; the economic analysis showed a specific gain of 12.58 €/t of sorted waste. The comparison of the obtained results with those of a similar MRF in Northern Italy had corroborated the suitability of the proposed approach suggesting its application, although with the due exceptions referred to the economic part, to other world contexts.

中文翻译：

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概述一种综合的技术经济方法来评估用于塑料废物回收的先进分拣设备的性能

摘要 来自城市固体废物的混合塑料通常在单独收集后在合适的材料回收设施 (MRF) 中回收。这些设备允许根据所采用的技术对具有可变性能的单个塑料进行分类。对 MRF 性能的评估也使用不同的方法进行，即使在时间尺度方面也是如此，这使得结果难以比较。在这种情况下，本研究提出了一种综合的技术经济方法来评估 MRF 在塑料废物回收方面的性能。作为支持，考虑了 Molfetta MRF 案例研究（意大利南部），进口塑料量约为 19,000 吨/年。该方法建议基于对不同流入废物流的数量和组成的分析，纯度指数 (PI) 和回收指数 (RI) 的计算、质量平衡的量化以及准确的经济评估。PI 和 RI 评估设施的技术性能。他们实现了手动和光学分选的最高值 (>95%)，实际上他们在第一维上达到了良好的值 (70–80%)；经济分析表明，每吨分类垃圾的比收益为 12.58 欧元。将所得结果与意大利北部类似 MRF 的结果进行比较，证实了建议方法的适用性，表明其适用于其他世界背景，尽管经济部分有适当的例外。他们实现了手动和光学分选的最高值 (>95%)，实际上他们在第一维上达到了良好的值 (70–80%)；经济分析表明，每吨分类垃圾的比收益为 12.58 欧元。将获得的结果与意大利北部类似 MRF 的结果进行比较，证实了建议方法的适用性，表明其适用于其他世界背景，尽管经济部分有适当的例外。他们实现了手动和光学分选的最高值 (>95%)，实际上他们在第一维上达到了良好的值 (70–80%)；经济分析表明，每吨分类垃圾的比收益为 12.58 欧元。将所得结果与意大利北部类似 MRF 的结果进行比较，证实了建议方法的适用性，表明其适用于其他世界背景，尽管经济部分有适当的例外。