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Bench-scale study demonstrates high water flux, improved anti-fouling, and 99.99% disinfection in river water, highlighting the potential of nanoparticle-composite membranes for water purification.
• Polyethylene glycol-silver nanoparticles (PEG-AgNPs) were synthesized to improve the properties of polyethersulfone (PES) membranes. • The incorporation of PEG-AgNPs into the PES membrane significantly increased its water flux from 2.87 to 172.84 L/m²·h. • The modified PES membrane with PEG-AgNPs showed improved anti-fouling properties, with increased reversible fouling and reduced irreversible fouling. • The PES/PEG-AgNPs membrane exhibited high filtration performance, achieving a water disinfection efficacy of 99.99 %. A bench-scale study of river water treatment using composite polyethersulfone (PES) membrane was carried out. Polyethylene glycol-silver nanoparticles (PEG-AgNPs) additive was designed to support the simultaneous filtration and disinfection performance of PES membranes via in situ incorporation. Significant improvements in the PES membranes after modification with PEG-AgNPs were observed. The experimental results showed that the PEG-AgNPs increased the PES membrane water flux from 2.87 to 172.84 L/m 2 ·h. The anti-fouling test of the PES membrane toward humic acid molecules after the addition of PES/PEG-AgNPs increased the reversible fouling and decreased the irreversible fouling. In terms of filtration performance, the PES/PEG-AgNP membranes showed high filtration performance, with a water disinfection ability of 99.99 %. Moreover, the leach of silver particles from the PES membrane forced by ultrasonication was <50 ppb, indicating the security and stability of the PES/PEG-AgNP membrane.
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Fahrina et al. (2024) studied this question.
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