抄録
Along with accelerating socioeconomic development and urbanization, the output of municipal solid waste (MSW) in China has increased rapidly. The Yearbook of the National Bureau of Statistics shows that, MSW was as high as 158.1 million tons, in 2010, almost 2.5 times larger than that in 1990 [1]. As consumption habits change and the fuel structure improves, the components and properties of MSW have also undergone tremendous changes. About 50—60% of MSW is composed of municipal biomass waste (MBW), such as food waste (FW) and fruit/vegetable residues (FVR). This study try to discuss the degradation process of organic matter during anaerobic co-digestion of MBW and WAS under different OLRs. To obtain a better understanding of the AD process, the changes in methane yield (MY), soluble chemical oxygen demand (SCOD), pH, volatile fatty acid (VFA) concentration, biogas production rate (BPR), and biogas content during a 24-h feeding cycle were analyzed. BPR is used as an evaluation index to analyze the organic matter conversion process. To gain a deeper insight into the co-digestion of MBW and WAS, AD model no.1 (ADM1) was revised for MBW and WAS co-digestion, the process parameters of co-digestion were obtained, and material balance of anaerobic co-digestion process was achieved.
