Methane and hydrogen production from potato wastes and wheat straw under dark fermentation

Batch dark fermentation of wheat straw and boiled potato wastes at volatile suspended solids (VSS) 5 g VSS/L are examined and compared. Investigations on dark fermentation of potatowastes and wheat straw were carried out at different pH and OFR (oxygen flow rate) values and inoculum pretreatment. Th...

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Bibliographic Details
Published in:Chemical and Process Engineering 2021-01, Vol.42 (1), p.3
Main Authors: Sołowski, Gaweł, Konkol, Izabela, Shalaby, Marwa, Cenian, Adam
Format: Article
Language:English
Subjects:
Fermentation
Flow velocity
Hydrogen production
Inoculum
Optimization
Potatoes
Solid suspensions
Substrates
Wheat
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Summary:Batch dark fermentation of wheat straw and boiled potato wastes at volatile suspended solids (VSS) 5 g VSS/L are examined and compared. Investigations on dark fermentation of potatowastes and wheat straw were carried out at different pH and OFR (oxygen flow rate) values and inoculum pretreatment. The obtained hydrogen yield from waste potato was 70 mL/g VSS, while for hydrolysed wheat straw it amounted to 80 mL/g VSS. The optimum conditions for potato dark fermentation are acidic pH 6.0 and OFR 1.0 mL/h, while for the wheat straw, optimal conditions are pH 6.4 and OFR 4.6 mL/h. The comparison revealed a significant difference in hydrogen production due to the type of substrate, inoculum stressing and DF conditions applied.
ISSN:0208-6425
2300-1925
DOI:10.24425/cpe.2021.137335