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Activity, life time...
Activity, life time and effect of hydrolytic enzymes for enhanced biogas production from sludge anaerobic digestion
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- Odnell, Anna (författare)
- Linköpings universitet,Kemi,Tekniska högskolan,Karshult Municipal Wastewater Treatment, Sweden
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- Recktenwald, Michael (författare)
- Kemira Oyj, Finland
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- Stensen, Katarina (författare)
- Tekniska Verken Linkoping AB, SE-58278 Linkoping, Sweden
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- Jonsson, Bengt-Harald (författare)
- Linköpings universitet,Kemi,Tekniska fakulteten
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- Karlsson, Martin (författare)
- Linköpings universitet,Kemi,Tekniska fakulteten,InZymes Biotech AB, Gjuterigatan 1B, SE-58273 Linkoping, Sweden
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(creator_code:org_t)
- PERGAMON-ELSEVIER SCIENCE LTD, 2016
- 2016
- Engelska.
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Ingår i: Water Research. - : PERGAMON-ELSEVIER SCIENCE LTD. - 0043-1354 .- 1879-2448. ; 103, s. 462-471
- Relaterad länk:
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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
- As an alternative to energy intensive physical methods, enzymatic treatment of sludge produced at wastewater treatment plants for increased hydrolysis and biogas production was investigated. Several hydrolytic enzymes were assessed with a focus on how enzyme activity and life time was influenced by sludge environments. It could be concluded that the activity life time of added enzymes was limited (amp;lt;24 h) in both waste activated sludge and anaerobic digester sludge environments and that this was, for the majority of enzymes, due to endogenous protease activity. In biogas in situ experiments, subtilisin at a 1% mixture on basis of volatile solids, was the only enzyme providing a significantly increased biomethane production of 37%. However, even at this high concentration, subtilisin could not hydrolyze all available substrate within the life time of the enzyme. Thus, for large scale implementation, enzymes better suited to the sludge environments are needed. (C) 2016 Elsevier Ltd. All rights reserved.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Miljöbioteknik -- Vattenbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Environmental Biotechnology -- Water Treatment (hsv//eng)
Nyckelord
- Wastewater treatment plant; Biogas; Enzyme; Protease; Subtilisin
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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