Methane potential of fruit and vegetable waste: an evaluation of the semi-continuous anaerobic mono-digestion.
File version
Accepted Manuscript (AM)
Author(s)
Frare, Laercio Mantovani
Lima Alino, Joao Henrique
Triolo, Jin Mi
Flotats, Xavier
Silva de Mendonca Costa, Monica Sarolli
Griffith University Author(s)
Primary Supervisor
Other Supervisors
Editor(s)
Date
Size
File type(s)
Location
License
Abstract
The anaerobic digestion (AD) of a high diversity blend of fruit and vegetable waste (FVW) generated in tropical conditions as a single substrate was performed. A continuously stirred tank reactor (CSTR) operated in semi-continuous regime was used for AD. The reactor performance was monitored with gradually increasing organic loading rates (OLRs) from 0.5 up to 5.0 gVS L-1 d-1. The biochemical methane potential (BMP) of FVW determined by batch bottles was 360 LN CH4 kgVS-1, with a biodegradability of 79%. A stable pH with an adequate level of buffering capacity was observed during the entire experiment. Methane yield indicated the best performance at an OLR of 3.0 gVS L-1 d-1, with 285 LN CH4 kgVS-1 added, reaching 79% of BMP. At an OLR over 3.0 gVS L-1 d-1 accumulation of volatile fatty acids (VFA) was detected; in particular, propionic acid was monitored, and a decreased methane yield was detected. Biogas production rate was 1.55 LN L-1 d-1 and showed linear increase according to increases in the OLR.
Journal Title
Environmental Technology
Conference Title
Book Title
Edition
Volume
41
Issue
7
Thesis Type
Degree Program
School
Publisher link
Patent number
Funder(s)
Grant identifier(s)
Rights Statement
Rights Statement
This is an Author's Accepted Manuscript of an article published in Environmental Technology, Volume 41, Issue 7, Pages 921-930, 02 Sep 2018, copyright Taylor & Francis, available online at: https://doi.org/10.1080/09593330.2018.1515262
Item Access Status
Note
Access the data
Related item(s)
Subject
Environmental sciences
Biological sciences
Engineering
BMP
Biogas
CSTR
biodegradability
organic loading rate
Persistent link to this record
Citation
Edwiges, T; Frare, LM; Alino, JHL; Triolo, JM; Flotats, X; Silva de Mendonça Costa, MS, Methane potential of fruit and vegetable waste: an evaluation of the semi-continuous anaerobic mono-digestion., Environmental Technology, 2018, 41 (7), pp. 921-930