Impact of photoactivated cobalt oxide nanoparticles addition on manure and whey for biogas production through dry anaerobic co-digestion

M. Samer (), E. M. Abdelsalam, S. Mohamed, H. Elsayed and Y. Attia ()
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M. Samer: Cairo University
E. M. Abdelsalam: National Institute of Laser Enhanced Sciences (NILES), Cairo University
S. Mohamed: National Institute of Laser Enhanced Sciences (NILES), Cairo University
H. Elsayed: National Research Centre, Dokki
Y. Attia: National Institute of Laser Enhanced Sciences (NILES), Cairo University

Environment, Development and Sustainability: A Multidisciplinary Approach to the Theory and Practice of Sustainable Development, 2022, vol. 24, issue 6, No 13, 7776-7793

Abstract: Abstract The dry anaerobic co-digestion is progressively implemented for treating manure with different agricultural wastes. Nanoparticles (NPs) were hypothesized to accelerate the dry anaerobic co-digestion process, which increases the biogas and methane production. The objective of this study is to produce biogas using dry anaerobic co-digestion of manure and whey with addition of photoactivated cobalt oxide nanoparticles (Co3O4 NPs). The effects of NPs on biogas and methane production were investigated using a specially designed batch anaerobic system, where a series of 2-L biodigesters were manufactured and implemented. The treatments were: mono-digestion of manure (control), co-digestion of manure with whey, co-digestion of manure and whey and 1, 2 and 5 mg/l of photoactivated Co3O4 NPs, respectively. The results revealed that the greatest specific production of biogas and CH4 (P

Keywords: Nanomaterials; Biogas; Anaerobic co-digestion; Dry fermentation; Agricultural wastes; Livestock manure (search for similar items in EconPapers)
Date: 2022
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DOI: 10.1007/s10668-021-01757-7

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