Effect of initial pH and substrate to inoculum ratio on the production of methane and hydrogen from food waste. (2023)

• Record Type: Journal Article
• Authors: Deheri, Chinmay; Kumar Acharya, Saroj; Mishra, Ruby
• Is Part Of: Materials today. Volume 74(2023)Part 4
• Page Start: 650
• Page End: 654
• Publication Date: 2023
• Subjects: Anaerobic co-digestion -- Hydrogen -- Calcium peroxide -- Zinc oxide -- Copper oxide -- Calcium carbonate; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2022.10.127
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: "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".