Abstract: The mechanical biological treatment (MBT) technology, as a method for treating municipal solid waste, transforms it into solid recovered fuel (SRF), achieving the dual goals of waste resource utilization and reduction. The produced SRF could serve as a partial substitute for fossil fuels, thus delivering significant environmental benefits in reducing carbon emissions. The technology has been widely adopted in Europe, while its practical application in China is still in infancy. The Linyi municipal solid waste incineration plant was taken as a case study to analyze and summarize the process characteristics and treatment effects of MBT technology, as well as to explore the issues encountered in project implementation and propose corresponding strategies. The research findings revealed that the MBT system of the project consumed approximately 61.09 kWh of electricity per ton of waste processed, with an average processing cost of about 71.98 yuan/t. The resources generated from the treatment of municipal solid waste through MBT included metals and SRF, and the SRF product had a moisture content of around 30%, its low calorific value was above the design value of 10 454 kJ/kg. Through this analysis, it could provide reference for process design and operational analysis of other similar projects.

Key words: mechanical sorting； biological drying； recycling； solid recovered fuel, processing cost