Siddiqui, Z, Horan, NJ, Sahito, AR et al. (2 more authors) (2014) Optimising the production of energy from coblended food waste and biosolids using batch reactor studies. Water and Environment Journal, 28 (4). 483 - 489. ISSN 1747-6585
Abstract
Energy production from a coblended mixture of biosolids and food waste was optimised for hydrogen and methane production. Four different blends were prepared by varying the carbohydrate:protein (carb:pro) ratios. The biosolids contained a low carbohydrate fraction and so was not suitable for hydrogen production when used alone. However coblending this waste with a carbohydrate-enriched food waste produced a greater hydrogen yield, making this option viable. Batch studies showed that the optimised mix had a biosolids concentration of 25.7% (w/w). The largest hydrogen yield of 198.5mL/gVSremoved was observed when the carb:pro was 2.78, and this was threefold higher than the other carb:pro ratios evaluated in this study. The digestate recovered after hydrogen recovery had a C:N of 17.5, which is in the ideal range for methane production. The biochemical methane potential test showed a methane yield of 239mL/gVSremoved, and the total volatile solids destruction following two-phase hydrogen and methane production was 93%.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Keywords: | Biodegradable; biohydrogen; biomethane; coblending |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Civil Engineering (Leeds) > Inst for Pathogen Control Engineering (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 02 Feb 2015 09:32 |
Last Modified: | 04 Nov 2016 06:43 |
Published Version: | http://dx.doi.org/10.1111/wej.12060 |
Status: | Published |
Publisher: | Wiley |
Identification Number: | 10.1111/wej.12060 |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:81647 |