Article Dans Une Revue TSM. Techniques Sciences Méthodes – Génie urbain, génie rural Année : 2014

Biotransformation de déchets halieutiques au Maroc-Essais de production d’un fertilisant biologique

Résumé

Morocco has the advantage of a wealth of resources of organic matter due to the presence of active food industries which generate wastes and by-products available over seasons in varying amounts. The transformation of these wastes, including composting processes, usually generates a new economic source in creating a product that may be used as a soil amendment for agriculture. This study aims at recovering wastes from the fish industry (a strategic economic sector in Morocco) by combining it with a by-product of the sugar industry: molasses. Due to the fermentation potential of added yeasts, only low molasses fractions were required. The compost was monitored for 15 days by measuring different parameters: pH, temperature, conductivity, solids, rate of nitrogen and phosphorus, microbiology. The results show that, composted wastes of Sardina pilchardus, yeast and only 15% of molasses are mature after 8 days. They are odorless, they have a stable pH with favorable hygienic properties and they lack phosphorus and nitrogen alterations otherwise present as a result of bacterial activities. Compost also exerts an intermediate bacteriostatic effect on Pectobacterium atrosepticum bacteria and facilitates the growth of a test barley crop. This allows the product to be used as a fertilizer, which is more interesting than purchasing commercial fertilizers.

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Dates et versions

hal-01115638 , version 1 (11-02-2015)

Identifiants

Citer

T Taiek, N. Boutaleb, B Bahlaouan, A El Jaâfari, Véronique Le Tilly, et al.. Biotransformation de déchets halieutiques au Maroc-Essais de production d’un fertilisant biologique. TSM. Techniques Sciences Méthodes – Génie urbain, génie rural, 2014, pp.158-171. ⟨10.1051/tsm/201411158⟩. ⟨hal-01115638⟩
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