Anaerobic treatability and residual biogas potential of the effluent stream of anaerobic digestion processes
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Date
2019
Journal Title
Journal ISSN
Volume Title
Publisher
Wiley
Access Rights
info:eu-repo/semantics/closedAccess
Abstract
Although anaerobic digestion is a well-established technology, the treatment and disposal of the digestate still presents a challenge due to lack of viable methods for processing. The residual organic matter in digestates also creates a significant residual biogas potential. This fact indicates that the digestates need further processing not only to reduce their organic content for disposal, but also to capture the biogas associated with this residual organic content. This study investigated anaerobic treatment and residual biogas potential of digestates obtained from five full-scale farm-based digesters. The results indicated that it was possible to reduce the total chemical oxygen demand (CODt) of the digestates with an efficiency of 21%-84%. The corresponding biogas yields of digestates ranged between 0.078 and 0.326 L-biogas/g VSadded. This level of biogas production is comparable to the biogas production potential of several commonly used raw substrates.(C) 2019 Water Environment Federation
Description
Ulgudur, Nilufer/0000-0003-3410-0598
WOS: 000462970500008
PubMed: 30624833
WOS: 000462970500008
PubMed: 30624833
Keywords
anaerobic, digestate, residual biogas, treatment
Journal or Series
Water Environment Research
WoS Q Value
Q3
Scopus Q Value
Q2
Volume
91
Issue
3
