TITLE

Anaerobic co-digestion of municipal organic wastes and pre-treatment to enhance biogas production from waste

AUTHOR(S)
Chenxi Li; Champagne, Pascale; Anderson, Bruce C.
PUB. DATE
January 2014
SOURCE
Water Science & Technology;2014, Vol. 69 Issue 2, p443
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Co-digestion and pre-treatment have been recognized as effective, low-cost and commercially viable approaches to reduce anaerobic digestion process limitations and improve biogas yields. In our previous batch-scale study, fat, oil, and grease (FOG) was investigated as a suitable potential cosubstrate, and thermo-chemical pre-treatment (TCPT) at pH = 10 and 55 °C improved CH4 production from FOG co-digestions. In this project, co-digestions with FOG were studied in bench-scale twostage thermophilic semi-continuous flow co-digesters with suitable TCPT (pH = 10, 55 °C). Overall, a 25.14± 2.14 L/d (70.2±1.4% CH4) biogas production was obtained, which was higher than in the two-stage system without pre-treatment. The results could provide valuable fundamental information to support full-scale investigations of anaerobic co-digestion of municipal organic wastes.
ACCESSION #
94188734

 

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