This study aims to assess the sustainability of healthcare waste treatment systems using surrogate weights and the Preference Ranking Organization METHod for Enrichment Evaluations (PROMETHEE). For this purpose, ten treatment systems, including land disposal, incineration and non-incineration systems, were evaluated in terms of environmental, financial, social, and technical criteria. Firstly, fifteen reputed experts assigned their preferred rankings for the groups of criteria and the sub-criteria. The conversion of these rankings into numerical weights was performed using the SR function, which is an additive combination of Sum and Reciprocal weight functions. Secondly, the alternatives’ performance with regards to each criterion allowed PROMETHEE to generate the outranking flows for each alternative. The complete ranking revealed that the rotary kiln (A4) is the most sustainable system followed by steam disinfection (A8), dry heat disinfection and microwave disinfection. However, the municipal landfill is the least sustainable system, while chemical disinfection is ranked in the penultimate position of sustainability. The partial ranking indicated that A4 and A8 are incomparable and both were ranked as most sustainable. Therefore, the sustainability of a system cannot be assessed properly without the exact specification of the system itself. In addition, it is preferable to act on the criteria that affect negatively the system to improve its performance.

这项研究的目的是使用替代权重和偏好评估组织METHod进行富集评估（PROMETHEE）来评估医疗废物处理系统的可持续性。为此，根据环境，财务，社会和技术标准对包括土地处置，焚化和非焚化系统在内的十种处理系统进行了评估。首先，由15位知名专家为标准组和子标准组分配了他们的首选排名。使用SR函数将这些等级转换为数字权重，该函数是Sum和Reciprocal权重函数的加法组合。其次，替代方案在每个标准方面的表现使PROMETHEE能够为每个替代方案生成排名较高的流程。综合排名显示，回转窑（A4）是最可持续的系统，其次是蒸汽消毒（A8），干热消毒和微波消毒。但是，市政垃圾填埋场是最不可持续的系统，而化学消毒则排在可持续性的倒数第二位。部分排名表明，A4和A8是无与伦比的，并且都被评为可持续性最高。因此，如果没有系统本身的确切规范，就无法正确评估系统的可持续性。另外，最好根据对系统有负面影响的标准采取行动，以改善其性能。而化学消毒则排在可持续发展的倒数第二位。部分排名表明，A4和A8是无与伦比的，都被评为可持续性最高。因此，如果没有系统本身的确切规范，就无法正确评估系统的可持续性。另外，最好根据对系统产生负面影响的标准来改善其性能。而化学消毒则排在可持续发展的倒数第二位。部分排名表明，A4和A8是无与伦比的，都被评为可持续性最高。因此，如果没有系统本身的确切规范，就无法正确评估系统的可持续性。另外，最好根据对系统有负面影响的标准采取行动，以改善其性能。