Optimizing biogas and biofertilizer production from abundant Moroccan industrial organic wastes by the formulation and the use of a fungal inoculum

Hadidi, Meryem; Bahlaouan, Bouchaib; Asbai, Zakaria; Radi Benjelloun, Ghita; El Antri, Said; Boutaleb, Nadia

doi:10.22104/aet.2022.5357.1450

Optimizing biogas and biofertilizer production from abundant Moroccan industrial organic wastes by the formulation and the use of a fungal inoculum

Document Type : Research Paper

Authors

¹ Hassan 2 University of Casablanca, Laboratory of Biochemistry, Environment and Agri-Food, LBEA URAC36, 20650 Morocco

² Higher Institutes of the Nursing Professions and Techniques of Health ISPITS Casablanca 22500, Morocco

10.22104/aet.2022.5357.1450

Abstract

In this study, the production of biogas using two fungal strains, Aspergillus niger and Saccharomyces cerevisiae, was studied. In fact, three different waste components consisting of sardine waste (SW), potato peels (PP), and poultry waste (PW) were successfully combined in mesophilic bio-digestion with fungal strains to enhance the production capacities of gas. This work also exhibited the effect of the formulation using a 10-point simplex-centroid mixture design strategy on biogas optimization. The results showed that 12 days was sufficient to achieve stability in mesophilic bio-digestion. This paper proved that the use of fungal inoculum with the mixture of organic and agro-industrial wastes, balanced in chemical elements necessary for cell growth (M7: 66% SW;17% PP;17% PW), led to higher production capacities of biogas. Therefore, the germination and fertilization tests carried out by the digestates resulting from these mixtures showed that they did not inhibit growth and proved to be suitable to improve the crop yields of bell peppers.

Keywords

Main Subjects

green technologies for environmental sustainability

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