Author(s)

Nazo Edith Kpata-Konan^1*, Kouamé Martin Kouamé², Yao Francis Kouamé², Sylvestre Ahou Yaovi^3,4, Koffi Felix Konan², Theophile Gnagne⁵

¹Department of Agroforestry, University Jean Lorougnon Guédé, Daloa, Côte d’Ivoire.
²Department of Environment, University Jean Lorougnon Guédé, Daloa, Côte d’Ivoire.
³IMT-Atlantique, GEPEA UMR CNRS 6144, Nantes, France.
⁴Laboratory of Biology and Molecular Typing in Microbiology, LBTMM, UAC, Abomey-Calavi, Benin.
⁵Department of Science and Environmental Management, Université Nangui Abrogoua, Abidjan, Côte d’Ivoire.

This study focused on the transfer of experimental results of anaerobic digestion of liquid waste from an attiéké (steamed cassava semolina) factory to a 6 m³ pilot digester. The experimental digester and the pilot were powered as follows: Lw + U + C (liquid waste + urine + cow dung). To the results, the experimental digester mesophilic with a progressive elimination of COD. Also, the nitrogen concentrations in the experimental reactor had little removal with alkaline pH. As for the biogas product in this digester, a volume of 3.6 m³ was obtained with a positive flammability test. The transition from the laboratory scale to the semi-industrial scale retains the results of purification and fuel biogas production of the experimental digester.

Anaerobic Digestion, Cassava Liquid Waste, Biogas

Kpata-Konan, N. , Kouamé, K. , Kouamé, Y. , Yaovi, S. , Konan, K. and Gnagne, T. (2020) Anaerobic Digestion of Liquid Waste from an Attiéké Factory: From the Experimental Scale to the Semi-Industrial Scale. Journal of Environmental Protection, 11, 531-539. doi: 10.4236/jep.2020.117031.