The recycling of aluminium (Al) packaging as a single fraction is a new obligation within the Circular Economy Package of the EU, with mandatory recycling rates of 50% for 2025 and 60% for 2030. The case study of Al packaging in Austria has been chosen to assess if and what measures need to be taken to achieve these recycling rates and what costs arise from these measures. In particular, the following options of Al recovery, and combinations thereof, have been investigated: bottom ash (BA) treatment; material recovery facilities (MRF) for mixed municipal solid waste; and changes to the selective collection system. The results of the study reveal that the present recycling rate of 55% for A1 packaging in Austria might be improved most significantly by MRF (up to 94%) and advanced BA treatment (up to 72%). Only minor improvements in the recycling rate (+2%) are achievable via a change in the collection system from selective metal to a mixed selective collection (joint collection of metal and lightweight packaging). If the only aim were to increase the recycling rates for Al packaging beyond the future target of 60%, an improvement in the Al recovery rates from BA treatment would be sufficient. With regard to increased recycling quantities of all recyclables, plastics in particular, the implementation of complex systems such as MRF makes sense, even if this results in higher costs for Al recovery (increasing from the current 480 to 640 € t^-1 of recycled Al).

铝（Al）包装的单一回收是欧盟循环经济包装中的一项新义务，强制回收率在2025年为50％，在2030年为60％。奥地利的案例研究是选择评估是否需要采取什么措施来达到这些回收率，以及从这些措施中产生什么成本。尤其是，已经研究了以下Al回收方案及其组合：底灰（BA）处理；用于混合城市固体废物的材料回收设施（MRF）；以及选择性收集系统的变更。研究结果表明，奥地利的A1包装目前的55％的回收利用率可通过MRF（最高94％）和先进的BA处理（最高72％）得到最大改善。通过将收集系统从选择性金属更改为混合选择性收集（金属和轻质包装的联合收集），只能实现较小的回收率提高（+ 2％）。如果唯一的目的是将铝包装的回收率提高到超过未来目标的60％，那么从BA处理中回收铝的回收率就足够了。关于增加所有可回收物（特别是塑料）的回收量，实施复杂的系统（例如MRF）是有意义的，即使这会导致更高的铝回收成本（从目前的480欧元增加到640欧元t 如果唯一的目的是将铝包装的回收率提高到未来的60％以上的目标，那么从BA处理中回收铝的回收率就足够了。关于增加所有可回收物（特别是塑料）的回收量，实施复杂的系统（例如MRF）是有意义的，即使这会导致更高的铝回收成本（从目前的480欧元增加到640欧元t 如果唯一的目的是将铝包装的回收率提高到未来的60％以上的目标，那么从BA处理中回收铝的回收率就足够了。关于增加所有可回收物（特别是塑料）的回收量，实施复杂的系统（例如MRF）是有意义的，即使这会导致更高的铝回收成本（从目前的480欧元增加到640欧元t^-1的回收铝）。