Minimizing flux decline in surimi wash water ultrafiltration for protein recovery

The constriction in implementing membrane technology in large scale operation is mainly due to fouling which resulting in flux decline. By applying possible combinations of operating conditions, such as transmembrane pressure and cross flow velocity, it is possible to minimize the flux declination....

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Bibliographic Details
Published in:Desalination and water treatment 2017-04, Vol.72, p.222-227
Main Authors: Ali, Nora’aini, Kamarudin, Diyana, Ismail, Nur Mahirah
Format: Article
Language:English
Subjects:
Flux decline
Fouling
protein-recovery
Ultrafiltration
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Summary:The constriction in implementing membrane technology in large scale operation is mainly due to fouling which resulting in flux decline. By applying possible combinations of operating conditions, such as transmembrane pressure and cross flow velocity, it is possible to minimize the flux declination. In this study, statistical experimental design was used in obtaining the maximum flux during surimi wash water ultrafiltration. The experiments were carried out in a low pressure continuous mode applying commercially purchased tubular polyvinylidene fluoride (PVDF) membrane. Various transmembrane pressures of 0.2, 0.3 and 0.4 bar and cross flow velocities of 0.0014, 0.0021 and 0.0028 m/s were implemented all through the study. The favourable condition was obtained using response surface methodology (RSM) as a tool. The best combination of operating conditions for minimum flux decline was found to be at a transmembrane pressure of 0.3 bar and cross flow velocity of 0.0021 m/s.
ISSN:1944-3986
DOI:10.5004/dwt.2017.20237