Zhang, Yang and Causserand, Christel and Aimar, Pierre and Cravedi, Jean-Pierre Removal of bisphenol A by a nanofiltration membrane in view of drinking water production. (2006) Water Research, vol. 40 (n° 20). 3793 -3799. ISSN 0043-1354
(Document in English)
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Official URL: http://dx.doi.org/10.1016/j.watres.2006.09.011
The efficiency with which a nanofiltration membrane (Desal 5 DK) removes bisphenol A(BPA) was investigated, together with the mechanisms involved. Whereas high retention (490%) was obtained at the beginning of the filtration, the observed retention coefficient(Robs) decreased to around 50% when the membrane became saturated, due to adsorption of BPA onto the membrane structure. The presence of ions (Na+, Cl) affects the Robs, this effect being attributed to a change in BPA hydrodynamic radius. Moreover, in our operating conditions, the presence of natural organic matter (1 mg/L) in the feed solution does not lead to variation in BPA retention at steady state.
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