The need of an integrated municipal solid waste (MSW) management system to maximize resource recovery and simultaneously reduce greenhouse-gas (GHG) emissions is rising in Oman. Therefore, three waste management scenarios are proposed and assessed in this study based on their potential to reduce waste and GHG emissions, and recover energy and recyclables in Oman from 2020 to 2040. The first scenario included recycling, anaerobic digestion (AD), and landfill disposal; while second scenario entailed recycling, incineration, and ash disposal. The third scenario involved incineration and AD plants, and landfilling of residues. The analysis indicated that the disposal of waste in scenario 2 will be the lowest during the entire study period (30–24%), followed by scenario 3 (32–41%) and scenario 1 (94–58%). Moreover, during the assessment period, scenario 3 will generate a total of 47 TWh electricity, higher than scenario 2 (29 TWh) and scenario 1 (4.7 TWh). Disposal of MSW is estimated to produce 309,803 GgCO₂e from 2020 to 2040; however, these emissions can be reduced by 53, 94 and 90% by the implementation of scenarios 1, 2 and 3, respectively. Furthermore, the average global warming factors after energy and material recovery further indicate that scenario 2 and scenario 3 result in net GHG emission savings of − 0.4 and – 0.28 GgCO₂e/Gg of MSW, except for scenario 1 which will produce 2.37 GgCO₂e/Gg of MSW. The analysis showed that in terms of reducing waste disposal and GHG emissions, scenario 2 is the best performing option; however, scenario 3 has the highest energy output.

在阿曼，对集成市政固体废物（MSW）管理系统以最大限度地提高资源回收率并同时减少温室气体（GHG）排放的需求正在增加。因此，本研究提出了三种废物管理方案，并根据其在2020年至2040年期间减少废物和温室气体排放以及回收阿曼的能源和可回收物的潜力进行了评估。第一种方案包括回收，厌氧消化（AD）和垃圾填埋场处理; 而第二种情况需要回收，焚化和灰烬处理。第三种情况涉及焚化厂和AD厂，以及垃圾填埋场。分析表明，方案2中的废物处置在整个研究期间将是最低的（30–24％），其次是方案3（32–41％）和方案1（94–58％）。此外，在评估期间，方案3将产生总计47 TWh的电力，高于方案2（29 TWh）和方案1（4.7 TWh）。处置城市固体废弃物估计会产生309,803 GgCO₂ ë2020至2040年; 但是，通过实施方案1、2和3，这些排放量可以分别减少53、94和90％。此外，能源和材料回收后的平均全球变暖因子进一步表明，情景2和情景3产生的净温室气体排放节省量分别为MSW的− 0.4和– 0.28 GgCO ₂ e / Gg，情景1除外，它将产生2.37 GgCO ₂垃圾的e / Gg。分析表明，就减少废物处置和减少温室气体排放而言，方案2是表现最佳的选择；但是，方案3的能量输出最高。