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Anaerobic digestion...
Anaerobic digestion of alkaline bleaching wastewater from a Kraft pulp and paper mill using UASB technique
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- Larsson, Madeleine (författare)
- Linköpings universitet,Tema Miljöförändring,Filosofiska fakulteten,Biogas Solutions Research Center
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- Truong, Xu-bin (författare)
- Linköpings universitet,Biogas Solutions Research Center,Scandinavian Biogas Fuels AB, Sweden
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- Björn, Annika (författare)
- Linköpings universitet,Tema Miljöförändring,Filosofiska fakulteten,Biogas Solutions Research Center
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- Ejlertsson, Jörgen (författare)
- Linköpings universitet,Tema Miljöförändring,Filosofiska fakulteten,Biogas Solutions Research Center,Scandinavian Biogas Fuels AB, Sweden
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- Bastviken, David (författare)
- Linköpings universitet,Tema Miljöförändring,Filosofiska fakulteten,Biogas Solutions Research Center
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- Svensson, Bo (författare)
- Linköpings universitet,Tema Miljöförändring,Filosofiska fakulteten,Biogas Solutions Research Center
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- Karlsson, Anna (författare)
- Linköpings universitet,Biogas Solutions Research Center,Scandinavian Biogas Fuels AB, Sweden
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(creator_code:org_t)
- 2015-03-05
- 2015
- Engelska.
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Ingår i: Environmental technology. - : Taylor & Francis: STM, Behavioural Science and Public Health Titles. - 0959-3330 .- 1479-487X. ; 36:12, s. 1489-1498
- 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
- Anaerobic digestion of alkaline kraft elemental chlorine-free bleaching wastewater in two mesophilic, lab-scale upflow anaerobic sludge bed reactors resulted in significantly higher biogas production (250 ± 50 vs. 120 ± 30 NmL g [Formula: see text]) and reduction of filtered total organic carbon (fTOC) (60 ± 5 vs. 43 ± 6%) for wastewater from processing of hardwood (HW) compared with softwood (SW). In all cases, the gas production was likely underestimated due to poor gas separation in the reactors. Despite changes in wastewater characteristics, a stable anaerobic process was maintained with hydraulic retention times (HRTs) between 7 and 14 h. Lowering the HRT (from 13.5 to 8.5 h) did not significantly affect the process, and the stable performance at 8.5 h leaves room for further decreases in HRT. The results show that this type of wastewater is suitable for a full-scale implementation, but the difference in methane potential between SW and HW is important to consider both regarding process dimensioning and biogas yield optimization.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Samhällsbyggnadsteknik -- Vattenteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Civil Engineering -- Water Engineering (hsv//eng)
Nyckelord
- UASB; alkaline kraft ECF bleaching wastewater; anaerobic digestion; hardwood; softwood
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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