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Kinetic Analysis of the Effect of pH on Biogas Production from Cow Manure Waste through Anaerobic Processes

Year: 2025

Type: article

Abstract: Biogas is the decomposition of organic waste by bacteria through an anaerobic fermentation process that can be managed to produce biogas in the form of methane gas (CH4). This study aims to analyze the effect of pH variation on biogas production through anaerobic digestion using a kinetic modeling approach. Using secondary data from previous studies, three kinetic models Gompertz, First Order, and Logistic were applied to predict biogas volume at acidic pH 4.52, neutral (6.80), and alkaline (8.52). Alkaline pH (8.52) resulted in the highest biogas production at 2850 mL. At pH 8.52, Gompertz parameters such as production potential (4,231.24 mL), maximum rate (163.19 mL/day), and shortest lag phase (3.92 days) indicated the highest efficiency.

Source: World Chemical Engineering Journal

DOI: 10.62870/wcej.v9i1.33625

Authors: Aufa Irsyad Priyatna, Alzena Nasywa Firdaus, Siti Halimatu Sa'diyah, Iqbal Syaichurrozi

Institution: Sultan Ageng Tirtayasa University

Language: English

Topic: Anaerobic Digestion and Biogas Production

Subfield: Building and Construction

Field: Engineering

Domain: Physical Sciences

SDGs: Affordable and clean energy, Responsible consumption and production, Climate action

Open Access status: diamond

OpenAlex ID: W4412917328

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