关键词: 生活垃圾, 气力输送系统, 国内外对比, “双碳”目标

Abstract: Based on 52 typical application cases from both domestic and international sources over the past 25 years, the differential landscape, core bottlenecks, and underlying causes in the market promotion of domestic waste pneumatic conveying system in both domestic and international were systematically analyzed. It further focused on exploring the development path of this system under the backdrop of the “dual carbon” goals and the construction of “zero-waste cities”, which realized the marketization of environmental protection value through energy structure transformation and model innovation. Analysis indicated that high initial investment, monopolies on foreign technology, technical challenges such as pipeline clogging and abrasion, and an underdeveloped specialized operation and maintenance system were the main bottlenecks hindering the large-scale adoption of this system in China. The study further revealed that the carbon footprint of the system was highly dependent on the electricity structure during the operation phase, and its life cycle environmental impact varied with the increasing cleanliness level of the power grid. The conclusion pointed out that by promoting urban planning integration, green power coupling, innovative carbon accounting methodologies, and smart operation and maintenance, the environmental benefits of the system could be effectively translated into economic value, which would help overcome barriers to market-oriented promotion, enable it to become an important technological option for supporting the construction of “zero-waste cities” and achieving the “dual carbon” goals.

Key words: municipal solid waste, pneumatic conveying system, domestic and international comparison , “dual carbon” goals