Impact of pretreatment conditions and chemical ageing on ultrafiltration membrane performances. Diagnostic of a coagulation/adsorption/filtration process
Résumé
5-year-old membranes autopsy revealed the absence of PVP inside the polymer.•5-year-old membranes were found much more sensitive to fouling than virgin membrane.•Fouling is strongly related to the degradation of PVP due to chlorine oxidation.