Abstract：
:Anaerobic co-digestion (AcoD) of the main residues from the non-centrifugal cane sugar (NCS) making process, agricultural crop residues (ACR) and sugarcane scum (SCS), was evaluated using biochemical methane potential tests. Substrates were pretreated: ACR through particle size reduction, and SCS with dilution. The maximum methane yield of 0.276 Nm3 CH4 kg-1 VSadded occurred at an ACR of 2 mm and at 12.5% dilution of SCS, at a ratio of 75:25 based on volatile solids, which was 30.2% and 5.9% higher compared to SCS and ACR in mono-digestion, respectively. ACR was a substrate of adequate buffer capacity for the AcoD stability, while the SCS, in addition to helping accelerate the process, also helped improve the inoculum's methanogenic and hydrolytic activity. The first-order kinetic and dual-pool two-step models were suitable to describe methane yield. AcoD of ACR with SCS is a good option for the treatment of streams in the NCS agribusiness sector.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Mendieta O,Castro L,Rodríguez J,Escalante Hdoi
10.1016/j.biortech.2020.122957subject
Has Abstractpub_date
2020-05-01 00:00:00pages
122957eissn
0960-8524issn
1873-2976pii
S0960-8524(20)30226-1journal_volume
303pub_type
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