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Gradual PVP leaching from PVDF/PVP blend membranes and its effects on membrane fouling in membrane bioreactors KU Leuven
© 2018 Elsevier B.V. Improving the hydrodynamics on the membrane surface in a magnetically induced membrane vibration system (MMV) has been proven efficient for membrane fouling control in membrane bioreactors. This advantage can be further extended by using an optimized membrane. This was realized in this study by preparing porous polyvinylidene fluoride membranes via polyvinylpyrrolidone (PVP) blending and later by leaching out the PVP from ...
Osmotic backwash of fouled FO membranes : cleaning mechanisms and membrane surface properties after cleaning Ghent University
Superhydrophobic PVDF nanofibre membranes coated with an organic fouling resistant hydrophilic active layer for direct-contact membrane distillation Ghent University
Water as the pore former in the synthesis of hydrophobic PVDF flat sheet membranes for use in membrane distillation Ghent University
Influence of PVP content on degradation of PES/PVP membranes: Insights from characterization of membranes with controlled composition KU Leuven
© 2017 Elsevier B.V. Sodium hypochlorite is widely used to clean/sanitize PES/PVP membranes. However, this strong oxidant is responsible for accelerated polymer ageing, thus impairing PES/PVP membrane lifespan. This work aimed at getting a better understanding of the role of PVP in the degradation of PES/PVP membranes. As the precise chemical composition of commercial membranes is most often unknown, PES/PVP membranes with various PVP to PES ...
Fouling-resistant PVDF nanofibre membranes for the desalination of brackish water in membrane distillation Ghent University
In the current study, pristine PVDF nanofibre membranes were successfully modified with silica nanoparticles (SiO(2)NPs) or with organically-functionalised (silanised) silica nanoparticles (f-SiO(2)NPs). The superhydrophobic f-SiO(2)NPs-modified PVDF membranes (contact angle = 156 +/- 6 degrees) showed enhanced water flux and lower flux decays than those of pristine and SiO(2)NPs-modified PVDF membranes under both low salinity (LS) and high ...