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231223s2010 xx |||||o 00| ||eng c |
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|a 10.1016/j.wasman.2010.04.011
|2 doi
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|a pubmed25n0659.xml
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|a DE-627
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|e rakwb
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|a eng
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|a Fountoulakis, M S
|e verfasserin
|4 aut
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|a Co-digestion of sewage sludge with glycerol to boost biogas production
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|c 2010
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 18.01.2011
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|a Date Revised 21.11.2013
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|a published: Print
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|a Citation Status MEDLINE
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|a (c) 2010 Elsevier Ltd. All rights reserved.
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|a The feasibility of adding crude glycerol from the biodiesel industry to the anaerobic digesters treating sewage sludge in wastewater treatment plants was studied in both batch and continuous experiments at 35 degrees C. Glycerol addition can boost biogas yields, if it does not exceed a limiting 1% (v/v) concentration in the feed. Any further increase of glycerol causes a high imbalance in the anaerobic digestion process. The reactor treating the sewage sludge produced 1106+/-36 ml CH(4)/d before the addition of glycerol and 2353+/-94 ml CH(4)/d after the addition of glycerol (1% v/v in the feed). The extra glycerol-COD added to the feed did not have a negative effect on reactor performance, but seemed to increase the active biomass (volatile solids) concentration in the system. Batch kinetic experiments showed that the maximum specific utilization rate (mu(max)) and the saturation constant (K(S)) of glycerol were 0.149+/-0.015 h(-1) and 0.276+/-0.095 g/l, respectively. Comparing the estimated values with the kinetics constants for propionate reported in the literature, it can be concluded that glycerol uptake is not the rate-limiting step during the process
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Biofuels
|2 NLM
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|a Sewage
|2 NLM
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|a Methane
|2 NLM
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|a OP0UW79H66
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|a Glycerol
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|a Petousi, I
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|a Manios, T
|e verfasserin
|4 aut
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|i Enthalten in
|t Waste management (New York, N.Y.)
|d 1999
|g 30(2010), 10 vom: 01. Okt., Seite 1849-53
|w (DE-627)NLM098197061
|x 1879-2456
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|g year:2010
|g number:10
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|g month:10
|g pages:1849-53
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|u http://dx.doi.org/10.1016/j.wasman.2010.04.011
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