Trace element supplementation in the biogas production from wheat stillage – optimization of metal dosing

Schmidt, Thomas and Nelles, Michael and Scholwin, Frank and Proter, Jurgen (2014) Trace element supplementation in the biogas production from wheat stillage – optimization of metal dosing. Bioresource Technology, 168. pp. 80-85. ISSN 0960-8524

Abstract

A trace element dosing strategy for the anaerobic digestion of wheat stillage was developed in this study. Mesophilic CSTR reactors were operated with the sulfuric substrate wheat stillage in some cases under trace element deficiency. After supplementing trace elements during the start-up, one of the elements of Fe, Ni, Co, Mo, andWwere depleted in one digester while still augmenting the other elements to determine minimum requirements for each element. The depletion of Fe and Ni resulted in a rapid accumulation of volatile fatty acids while Co and W seem to have a long-term effect. Based on the results it was possible to reduce the dosing of trace elements, which is positive with reference to economic and environmental aspects.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Files associated with this item cannot be displayed due to copyright restrictions.
Faculty / Department / School: No Faculty
Date Deposited: 24 May 2017 05:28
Last Modified: 25 May 2017 03:17
Uncontrolled Keywords: anaerobic digestion; biogas; trace elements
Fields of Research : 09 Engineering > 0907 Environmental Engineering > 090703 Environmental Technologies
Identification Number or DOI: 10.1016/j.biortech.2014.02.124
URI: http://eprints.usq.edu.au/id/eprint/32444

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