Investigation of Different Pre-Treatment Techniques and 3D Printed Turbulence Promoter to Mitigate Membrane Fouling in Dairy Wastewater Module

Investigation of Different Pre-Treatment Techniques and 3D Printed Turbulence Promoter to Mitigate Membrane Fouling in Dairy Wastewater Module

This study investigates the enhancement of dairy wastewater treatment using chemical and physical pre-treatments coupled with membrane separation techniques to reduce membrane fouling. Two mathematical models, namely the Hermia and resistance-in-series module, were utilized to comprehend the mechani...

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Bibliographic Details
Published in:Materials Vol. 16; no. 8; p. 3117
Main Authors: Kertész, Szabolcs, Al-Tayawi, Aws N, Gergely, Gréta, Ott, Bence, Gulyás, Nikolett Sz, Jákói, Zoltán, Beszédes, Sándor, Hodúr, Cecilia, Szabó, Tamás, László, Zsuzsanna
Format: Journal Article
Language:English
Published: Switzerland MDPI AG 15-04-2023
MDPI
Subjects:
3D printing
3DP turbulence promoter
Biofouling
Chemical oxygen demand
Dairy industry
dairy wastewater treatment
Efficiency
Energy consumption
Equipment and supplies
Filtration
Fouling
Gas formation
Laboratories
Mathematical models
membrane fouling mitigation
Membrane separation
Membranes
Methods
Microfiltration
Milk
Modules
Nanoparticles
Permeability
Phosphorus
pre-treatments
Pretreatment
Prevention
Purification
Separation
Sewage
Shear rate
Three dimensional printing
Turbulence
Ultrafiltration
Waste management
Wastewater treatment
Water resources management
Water treatment
Hungary
United States > US
Germany
dairy wastewater treatment
membrane fouling mitigation
3DP turbulence promoter
pre-treatments
ultrafiltration
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Summary:This study investigates the enhancement of dairy wastewater treatment using chemical and physical pre-treatments coupled with membrane separation techniques to reduce membrane fouling. Two mathematical models, namely the Hermia and resistance-in-series module, were utilized to comprehend the mechanisms of ultrafiltration (UF) membrane fouling. The predominant fouling mechanism was identified by fitting experimental data into four models. The study calculated and compared permeate flux, membrane rejection, and membrane reversible and irreversible resistance values. The gas formation was also evaluated as a post-treatment. The results showed that the pre-treatments improved UF efficiency for flux, retention, and resistance values compared to the control. Chemical pre-treatment was identified as the most effective approach to improve filtration efficiency. Physical treatments after microfiltration (MF) and UF showed better fluxes, retention, and resistance results than ultrasonic pre-treatment followed by UF. The efficacy of a three-dimensionally printed (3DP) turbulence promoter was also examined to mitigate membrane fouling. The integration of the 3DP turbulence promoter enhanced hydrodynamic conditions and increased the shear rate on the membrane surface, shortening filtration time and increasing permeate flux values. This study provides valuable insights into optimizing dairy wastewater treatment and membrane separation techniques, which can have significant implications for sustainable water resource management. The present outcomes clearly recommend the application of hybrid pre-, main- and post-treatments coupled with module-integrated turbulence promoters in dairy wastewater ultrafiltration membrane modules to increase membrane separation efficiencies.
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content type line 23
ISSN:1996-1944
1996-1944
DOI:10.3390/ma16083117