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Assessment of Biogas Potential of Pineapple Waste in Mono and Co- Digestion with Cow Dung at Ambient Temperature

Djonoumawou Mèmèvêgni Grâce Floriane Chidikofan1 * , Thierry Godjo2 , Josias Ayao Dossa1 , David Gildas Farid Adamon2 , Melhyas Kplé3 and Guevara Nonviho4

1 National School of Energy Engineering and Processes (ENSGEP), National University of Sciences, Technologies, Engineering and Mathematics (UNSTIM), Abomey, Benin

2 National Institute of Industrial Technology (INSTI), National University of Sciences, Technologies, Engineering and Mathematics, (UNSTIM), Abomey, Benin

3 National University of Agriculture (UNA), Kétou, Benin

4 National School of Technical Education (ENSET), National University of Sciences, Technologies, Engineering and Mathematics (UNSTIM), Abomey, Benin

Corresponding author Email: gchidi2008@gmail.com

Pineapple (Ananas comosus (L.) Meril) processing in Benin's agri-food industries generates waste with high potential for energy production. The present study assessed the biogas production potential of pineapple cakes and crowns in mono and co-digestion with cow dung. The methodology used is based essentially on the Simplex-Centroid Designs mixing scheme designed in Minitab.19. Anaerobic digestion tests were carried out with seven formulations in triplicate. Temperature, pH and biogas volume were monitored. A predictive model of biogas production according to mixing ratios was developed. Results indicate that digesters operating at mesophilic temperatures ranged from 23°C to 33°C, with an average of 26.5°C±0.33. The best-performing mixture in terms of biogas volume generated contained 50 g cake:50 g cow dung. This resulted in the production of 9.62 liters of biogas/kg of waste. Therefore, it has been established that pineapple waste and cow dung can be used efficiently for biogas production. The results also reveal the importance of maintaining some physico-chemical parameters of the waste mixtures in order to optimize biogas production. The model approximates average biogas production, with an R² correlation coefficient over 80%. In total, pineapple waste can be used to produce biogas. The exploitation of this energy resource in agri-food industries can contribute to the use reduction of conventional energy and fossil fuels.

Anaerobic; Benin; Biogas; Cow dung, Pineapple-waste

Copy the following to cite this article:

Chidikofan D. M. J. F, Godjo T, Dossa J. A, Adamon D. G. F, Kplé M, Nonviho G. Assessment of Biogas Potential of Pineapple Waste in Mono and Co- Digestion with Cow Dung at Ambient Temperature. Curr World Environ 2025;20(1).

Copy the following to cite this URL:

Chidikofan D. M. J. F, Godjo T, Dossa J. A, Adamon D. G. F, Kplé M, Nonviho G. Assessment of Biogas Potential of Pineapple Waste in Mono and Co- Digestion with Cow Dung at Ambient Temperature. Curr World Environ 2025;20(1).

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