Article Dans Une Revue Euro-Mediterranean Journal for Environmental Integration Année : 2024

Exploring the potential use of chitosan derived from <i>Hermetia illucens</i> waste for olive oil mill wastewater treatment

Résumé

In this study, we aimed to explore a potential chitinous source, specifically the prepupal cases, which considered as a waste of Hermetia illucens. We focused on evaluating the interaction between chitosan extracted and Olive Mill Wastewater (OMW) recovered from olive oil producer in the Frouga region-Imintanout-Morocco, which presents a valuable economic income for Mediterranean countries, we aimed to replace the conventional metal-based coagulants used for pretreatment. The characterization of chitosan obtained and its interaction with OMW were studied by FTIR spectroscopy, XRD, 1H-NMR, potentiometry study, conductivity, and zeta potential measurements. The goal was to produce a healthy olive vegetation water after treatment that could potentially be reused in several fields of application such as pharmaceuticals and cosmetics. Chitosan obtained with a molecular weight of 62 KDa and an acetylation degree of 3.15% was selected as a model natural organic coagulant known by its efficiency in wastewater treatment, and the coagulation process was optimized by examining various interaction factors such as agitation and temperature. The results showed high efficiency of chitosan interaction, with maximum removal rates of iron, copper, and phosphorus reaching 86.84%, 82.14%, and 43.47%, respectively, and 77% reduction in phenolic content. The optimal performance was achieved using chitosan in interaction with olive mill wastewater with agitation factor and heating factor at 45 degrees C.

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Dates et versions

hal-04699997 , version 1 (17-09-2024)

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Samia Elouali, Oumaima Dahbane, Youssef Ait Hamdan, Nadia Eladlani, Mohammed Rhazi. Exploring the potential use of chitosan derived from <i>Hermetia illucens</i> waste for olive oil mill wastewater treatment. Euro-Mediterranean Journal for Environmental Integration, 2024, ⟨10.1007/s41207-024-00593-1⟩. ⟨hal-04699997⟩
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