厨余垃圾干式厌氧发酵工艺研究OA

With the rapid increase in the output of classified food waste in Chinese cities,the treatment and resource recy-cling of food waste have become urgent issues to address in building a resource-saving and environment-friendly society.This article introduces the push-flow anaerobic dry fermentation process technology for food waste through a case study of a biogas project.The project has a treatment capacity of 51.4 t·d-1,operates at an anaerobic fermentation temperature of 55 ℃,and the gas production rate of the material entering the anaerobic tank is 134.52 Nm3·t-1.It produces 2.66 million Nm3 of biogas annually,which can generate 4.26 million kWh of electricity.By replacing fossil fuels with biogas power genera-tion,the project is expected to reduce carbon dioxide emissions by approximately 4960.93 tonnes each year,demonstrating significant carbon reduction benefits.