Effect of initial pH and substrate to inoculum ratio on the production of methane and hydrogen from food waste

“Anaerobic co-digestion of food waste, cow dung, and sludge solution is experimented by varying the pH to produce hydrogen and methane as a source of renewable energy. The substrate to inoculum ratio (v/v) of 1:1(S1), 1:2(S2), 1:3(S3), 1:4(S4) and 1:5(S5) are investigated in separate fermentative an...

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Published inMaterials today : proceedings Vol. 74; pp. 650 - 654
Main Authors Deheri, Chinmay, Kumar Acharya, Saroj, Mishra, Ruby
Format Journal Article
LanguageEnglish
Published Elsevier Ltd 2023
Subjects
Anaerobic co-digestion
Calcium carbonate
Calcium peroxide
Copper oxide
Hydrogen
Zinc oxide
Calcium peroxide
Anaerobic co-digestion
Zinc oxide
Copper oxide
Hydrogen
Calcium carbonate
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Summary:“Anaerobic co-digestion of food waste, cow dung, and sludge solution is experimented by varying the pH to produce hydrogen and methane as a source of renewable energy. The substrate to inoculum ratio (v/v) of 1:1(S1), 1:2(S2), 1:3(S3), 1:4(S4) and 1:5(S5) are investigated in separate fermentative and methanogenic reactors. A maximum hydrogen and methane concentration of 19.73% and 64.81% respectively are obtained in S3. The methane concentration of 53.67%, 64.81% and 59.64% is observed at the pH variation of 6.5, 7, and 7.5 respectively. The obtained result shows the substrate to inoculum ratio of 1:3 to be the optimal combination for the highest methane and hydrogen production during the anaerobic co-digestion process”.
ISSN:2214-7853
2214-7853
DOI:10.1016/j.matpr.2022.10.127