Co-digestion of vegetable peel with cow dung without external inoculum for biogas production: Experimental and a new modelling test in a batch mode

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dc.authoridMohammed, Djaafri/0000-0001-9257-5378
dc.authoridAtabani, Abdulaziz/0000-0001-6793-5589
dc.authoridAtelge, Muhamed Rasit/0000-0002-0613-2501
dc.contributor.authorLahbab, Abderrahmane
dc.contributor.authorDjaafri, Mohammed
dc.contributor.authorKalloum, Slimane
dc.contributor.authorBenatiallah, Ali
dc.contributor.authorAtelge, M. R.
dc.contributor.authorAtabani, A. E.
dc.date.accessioned2024-12-24T19:27:06Z
dc.date.available2024-12-24T19:27:06Z
dc.date.issued2021
dc.departmentSiirt Üniversitesi
dc.description.abstractThis paper examined both experimental and a new modelling test for biogas production based on Co-Digestion Ratio (CDR) of vegetable peel (VP) with cow dung (CD) without external inoculum. For this, vegetable peel was used as a substrate and cow dung was used as a co-substrate. Reactors in triplicate were prepared. The vegetable peel concentrations were 12, 8, 6 and 4 g VS/l with the same cow dung concentration (4 g of VS/l) which corresponds to a CDR of 3:1, 2:1, 1.5:1 and 1:1. A new mathematical model corresponding to the biotech anaerobic digestion process based only on the (CDR) and (VS) was implemented under Matlab Simulink. The experimental results indicate that the optimal cumulative methane production (CMP) of 2000 ml was generated in the reactor containing a (CDR) of 3:1 which corresponds to a methane yield of 170 ml CH4/ g VS. i.e., an improvement between 23 and 26% comparing to all other CDRs. The experimental results were conformed by the new mathematical model. After applying the invented new idea by converting the constants (Rm, L and Gm) into functions (Rm =f1 (CDR), L=f2(CDR) and Gm = f3 (VS)) and relating them to each other using the Gompertz relation. The new model was able to predict the methane produced using only two inputs: VS and CDR. While in the literature studies, which were used Gompertz relationship for kinetic modelling, the constants must be recalculated each time as a new model, although the substrates used are the same, only the composition is different. Analysis of the variance (ANOVA) between the experimental and modelling results showed that there is no statistically significant difference, with a significance level of 0.05. Finally, the invented new idea can be a key to another different research that uses the same substrate.
dc.identifier.doi10.1016/j.fuel.2021.121627
dc.identifier.issn0016-2361
dc.identifier.issn1873-7153
dc.identifier.scopus2-s2.0-85111954075
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.fuel.2021.121627
dc.identifier.urihttps://hdl.handle.net/20.500.12604/6504
dc.identifier.volume306
dc.identifier.wosWOS:000703962100006
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier Sci Ltd
dc.relation.ispartofFuel
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_20241222
dc.subjectAnaerobic digestion
dc.subjectMethane production
dc.subjectBatch mode
dc.subjectAD modelling
dc.subjectCo-digestion ratio
dc.subjectVegetable peel
dc.titleCo-digestion of vegetable peel with cow dung without external inoculum for biogas production: Experimental and a new modelling test in a batch mode
dc.typeArticle

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