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Article Dans Une Revue Journal of Food Engineering Année : 2022

Treatment of cauliflower processing wastewater by nanofiltration and reverse osmosis in view of recycling

Résumé

The vegetable industry is a large consumer of drinking water. This paper investigates the possibilities of Reverse Osmosis (RO) or tight Nanofiltration (NF) for the treatment of cauliflower blanching wastewater with a view to recycling within the production unit. Ultrafiltration at 100 000 g mol−1 molecular weight cut-off was necessary to decrease turbidity below 1 NTU as required before NF or RO. Three NF (DK, NF270 and SRD3) and one RO (ESPA4) membranes were tested at bench-scale in a crossflow filtration mode. Only RO allowed to reach the desired quality for a reuse purpose, with an acceptable residual COD content of 225 mg O2 L−1. The Solution-Diffusion model was validated for the transfer of glucose and fructose, for NF270, DK and ESPA4 membranes and their permeability coefficients calculated.
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Dates et versions

hal-03415172 , version 1 (05-01-2024)

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Paternité - Pas d'utilisation commerciale

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Céline Garnier, Wafa Guiga, Marie-Laure Lameloise, Laure Degrand, Claire Fargues. Treatment of cauliflower processing wastewater by nanofiltration and reverse osmosis in view of recycling. Journal of Food Engineering, 2022, 317, pp.110863. ⟨10.1016/j.jfoodeng.2021.110863⟩. ⟨hal-03415172⟩
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