Back to Search Start Over

Biogas production generated through continuous digestion of natural and cultivated seaweeds with dairy slurry.

Authors :
Tabassum MR
Wall DM
Murphy JD
Source :
Bioresource technology [Bioresour Technol] 2016 Nov; Vol. 219, pp. 228-238. Date of Electronic Publication: 2016 Jul 29.
Publication Year :
2016

Abstract

The technical feasibility of long term anaerobic mono-digestion of two brown seaweeds, and co-digestion of both seaweeds with dairy slurry was investigated whilst increasing the organic loading rate (OLR). One seaweed was natural (L. digitata); the second seaweed (S. Latissima) was cultivated. Higher proportions of L. digitata in co-digestion (66.6%) allowed the digester to operate more efficiently (OLR of 5kgVSm(-3)d(-1) achieving a specific methane yield (SMY) of 232LCH4kg(-1)VS) as compared to lower proportions (33.3%). Co-digestion of 66.6% cultivated S. latissima, with dairy slurry allowed a higher SMY of 252LCH4kg(-1)VS but at a lower OLR of 4kgVSm(-3)d(-1). Optimum conditions for mono-digestion of both seaweeds were effected at 4kgVSm(-3)d(-1). Chloride concentrations increased to high levels in the digestion of both seaweeds but were not detrimental to operation.<br /> (Copyright © 2016 Elsevier Ltd. All rights reserved.)

Details

Language :
English
ISSN :
1873-2976
Volume :
219
Database :
MEDLINE
Journal :
Bioresource technology
Publication Type :
Academic Journal
Accession number :
27494104
Full Text :
https://doi.org/10.1016/j.biortech.2016.07.127