Please use this identifier to cite or link to this item: https://scholarhub.balamand.edu.lb/handle/uob/6233
Title: Dewatering of Arthrospira platensis microalgae suspension by electrofiltration
Authors: Aoude, Christa
Grimi, Nabil
Zakhem, Henri El 
Vorobiev, Eugene
Affiliations: Faculty of Engineering 
Keywords: Dewatering
Electrofiltration
Harvesting
Microalgae suspension
Issue Date: 2022-01-01
Publisher: Taylor & Francis Online
Part of: Drying Technology
Abstract: 
Harvesting microalgae has presented many challenges in the past, especially when taking into account the final dryness of the product and the energy requirements for the drying process. This study investigates the use of dead-end electrofiltration to dewater an Arthrospira platensis suspension under different pressures (1 to 4 bar) and electric current densities (30 to 80 A/m2). Filtration without an electric field helped reach a final cake dryness in the range of 13.3-15%. Electrofiltration was found to be a more effective dewatering method, reaching a final cake dryness of up to 20.8% with an energy consumption of 0.105 kWh/kg water removed, which is significantly lower than the energy consumption reported in literature. Increasing the electric current density helped increase the cake dryness, whereas increasing the operating pressure was not effective enough due to the high cake compressibility. Electrofiltration also modifies the filtrate and cake properties due to the electrolysis reactions.
URI: https://scholarhub.balamand.edu.lb/handle/uob/6233
ISSN: 07373937
DOI: 10.1080/07373937.2022.2135527
Ezproxy URL: Link to full text
Type: Journal Article
Appears in Collections:Department of Chemical Engineering

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