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Perspectives of hydrogen production from corn wastes in poland by means of dark fermentation

100%

Sołowski G. , Konkol I. , Cenian A.

Ecological Chemistry and Engineering. S

2019

tom Vol. 26, nr 2

255--263

A model for calculating the maximal theoretical production of hydrogen from corn wastes is proposed. The model has been used to estimate the potential for hydrogen production from cereals wastes such as wheat, barley, and corn which are cultivated in Poland. The potentials for Pomorze and other regions of Poland are compared. The hydrogen produced from cereal wastes in Poland could potentially meet 47 % of national hydrogen demand.

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

100%

Sołowski G. , Konkol I. , Shalaby M. , Cenian A.

Chemical and Process Engineering

2021

tom Vol. 42, nr 1

3-–13

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.