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Inclusion of Saccha...
Inclusion of Saccharina latissima in conventional anaerobic digestion systems
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- Ometto, F. (författare)
- Research and Development Department , Scandinavian Biogas Fuels AB , Stockholm , Sweden
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- Berg, A. (författare)
- Research and Development Department , Scandinavian Biogas Fuels AB , Stockholm , Sweden
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- Björn, Annika, 1972- (författare)
- Linköpings universitet,Tema Miljöförändring,Filosofiska fakulteten
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- Safaric, Luka (författare)
- Linköpings universitet,Tema Miljöförändring,Filosofiska fakulteten
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- Svensson, Bo H., 1946- (författare)
- Linköpings universitet,Tema Miljöförändring,Filosofiska fakulteten
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- Karlsson, A. (författare)
- Research and Development Department , Scandinavian Biogas Fuels AB , Stockholm , Sweden
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- Ejlertsson, Jörgen, 1965- (författare)
- Linköpings universitet,Tema Miljöförändring,Filosofiska fakulteten,Research and Development Department , Scandinavian Biogas Fuels AB , Stockholm , Sweden
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(creator_code:org_t)
- 2017-04-04
- 2018
- Engelska.
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Ingår i: Environmental technology. - : Taylor & Francis. - 0959-3330 .- 1479-487X. ; 39:5, s. 628-639
- Relaterad länk:
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https://liu.diva-por... (primary) (Raw object)
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http://liu.diva-port...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Loading macroalgae into existing anaerobic digestion (AD) plants allows us to overcome challenges such as low digestion efficiencies, trace elements limitation, excessive salinity levels and accumulation of volatile fatty acids (VFAs), observed while digesting algae as a single substrate. In this work, the co-digestion of the brown macroalgae Saccharina latissima with mixed municipal wastewater sludge (WWS) was investigated in mesophilic and thermophilic conditions. The hydraulic retention time (HRT) and the organic loading rate (OLR) were fixed at 19 days and 2.1 g l-1 d-1of volatile solids (VS), respectively. Initially, WWS was digested alone. Subsequently, a percentage of the total OLR (20%, 50% and finally 80%) was replaced by S. latissima biomass. Optimal digestion conditions were observed at medium-low algae loading (=50% of total OLR) with an average methane yield close to [Formula: see text] and [Formula: see text] in mesophilic and thermophilic conditions, respectively. The conductivity values increased with the algae loading without inhibiting the digestion process. The viscosities of the reactor sludges revealed decreasing values with reduced WWS loading at both temperatures, enhancing mixing properties.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Miljöbioteknik -- Vattenbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Environmental Biotechnology -- Water Treatment (hsv//eng)
Nyckelord
- Seaweed; biomethane; co-digestion; salinity; viscosity
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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