Operational experience of the brackish water reverse osmosis of the water treatment plant in Sant Joan Despí

Teuler, A.; Vega, A.; Coma, Josep; Vidal, Daniela; Aumatell, Jordi

doi:10.1080/19443994.2012.714638

Cited by 1 publication

(2 citation statements)

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“…Among these materials, PES is the most commonly used for UF membrane making, as it provides high mechanical, thermal (up to 50 o C) and chemical resistances. Moreover, PES has reasonable pH tolerances (4)(5)(6)(7)(8)(9)(10), good chlorine resistance and high flexibility in membrane fabrication [25,26]. However, PES has low hydrophilic property, which makes it prone to fouling problems [24].…”

Section: Introductionmentioning

confidence: 99%

“…The physical separation process of contaminants using membrane technology has been widely applied in many water and wastewater treatment processes. Some of its applications are the production of potable water from surface water/groundwater/brackish water [5][6][7][8] or recycling of industrial effluent for reuse purposes [3]. The effectiveness of membrane technology in removing a wide variety of water contaminants has increased the use of this process in water purification to replace or improve conventional treatments [9].…”

Section: Introductionmentioning

confidence: 99%

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Preparation and characterization of PES/SiO2 composite ultrafiltration membrane for advanced water treatment

Muhamad

Salim

Lau

2015

Korean J. Chem. Eng.

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Polyethersulfone (PES) is a commonly used polymeric material for the fabrication of ultrafiltration (UF) membranes. However, the hydrophobic nature of PES leads to poor membrane performance with low anti-fouling properties during filtration process. Hence, for this study, the PES-based hollow fiber membrane was modified with inorganic silicon dioxide (SiO 2 ) nanoparticles of various loading (from zero to 4 wt%), aiming to improve the membrane properties for advanced water treatment process. The characterization of the surface morphology, physical and chemical properties of novel PES/SiO 2 composite membranes was performed by SEM, FTIR-ATR, TGA and contact angle analyzer. The SEM images show the changes in membrane structure as well as skin layer thickness upon addition of SiO 2 nanoparticles. The FTIR-ATR analysis shows the functional group of SiO 2 in the polymer matrices. Results further show that the presence of 2 wt% SiO 2 in the membrane matrix is the best loading to improve the water flux and bovine serum albumin (BSA) rejection, achieving 87.2 L/m 2 ·h and 94%, respectively. As a comparison, the control PES membrane only exhibits water flux of 44.2 L/m 2 ·h and rejection of 81%. Results also show that the flux recovery percentage of the membrane was improved from 82% in the control membrane to 93% in the membrane incorporated with 2 wt% SiO 2 , indicating improved membrane anti-fouling property. Furthermore, the PES/SiO 2 membrane shows huge potential for advanced water treatment, as the qualities of the permeate samples treated by this membrane could meet the limit set by a local water company.

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