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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Dareioti, Margarita Andreas Kornaros, Michael Vavouraki, Aikaterini Ioannis |
| Description | Country affiliation: Greece Author Affiliation: Dareioti MA ( Chemical Engineering Department, University of Patras, 1 Karatheodori str., University Campus, 26500 Patras, Greece.); Vavouraki AI ( Chemical Engineering Department, University of Patras, 1 Karatheodori str., University Campus, 26500 Patras, Greece.); Kornaros M ( Chemical Engineering Department, University of Patras, 1 Karatheodori str., University Campus, 26500 Patras, Greece. Electronic address: kornaros@chemeng.upatras.gr.) |
| Abstract | The aim of this study was to investigate the impact of pH on the production of bio-hydrogen and end-products from a mixture of olive mill wastewater, cheese whey and liquid cow manure (with a ratio of 55:40:5, v/v/v). Batch experiments were performed under mesophilic conditions (37°C) at a range of pH from 4.5 to 7.5. The main end-products identified were acetic, propionic, butyric, lactic acid and ethanol. The highest hydrogen production yield was observed at pH 6.0 (0.642 mol H2/mol equivalent glucose consumed), whereas the maximum VFAs concentration (i.e. 13.43 g/L) was measured at pH 6.5. The composition of acidified effluent in acetic and butyric acid was similar at pH 6.0 and 6.5, albeit an increase of propionic acid was observed in higher pH. Lactic acid was identified as a major metabolite which presented an intense accumulation (up to 11 g/L) before its further bioconversion to butyric acid and hydrogen. |
| ISSN | 09608524 |
| Volume Number | 162 |
| e-ISSN | 18732976 |
| Journal | Bioresource Technology |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2014-06-01 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Agriculture Batch Cell Culture Techniques Methods Biofuels Carboxylic Acids Metabolism Hydrogen Industrial Waste Anaerobiosis Biodegradation, Environmental Butyric Acid Carbohydrate Metabolism Ethanol Fatty Acids, Volatile Biosynthesis Hydrogen-ion Concentration Kinetics Lactic Acid Waste Water Microbiology Journal Article Research Support, Non-u.s. Gov't Discipline Bioresource |
| Content Type | Text |
| Resource Type | Article |
| Subject | Waste Management and Disposal Medicine Environmental Engineering Renewable Energy, Sustainability and the Environment Bioengineering |
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