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Composite membranes formed by plasma-polymerized acrylic acid for ultrafiltration of bleach effluent
YKI – Ytkemiska institutet.
1993 (Engelska)Ingår i: Journal of Applied Polymer Science, ISSN 0021-8995, E-ISSN 1097-4628, Vol. 47, s. 2125-2133Artikel i tidskrift (Refereegranskat)
Abstract [en]

Composite membranes were formed by deposition of plasma-polymerized acrylic acid (PPAA) films onto porous commercial membranes to improve the rejection, especially of chlorinated compunds, in ultrafiltration of E-stage bleach effluent. Although increased rejections were accompanied by reduced flux, in most cases, the reductionswere not significiant considering the extent of increased rejections. A good composite membrane showed the AOX removal of 94% (76% before the modification) and the chemical oxygen demand (COD) removal of 84% (67% before the modification) with 33% reduction of the flux. The permeate was optically clean. The improved rejection is attributed to the tightly crosslinked network of a plasma polymer film and its negatively charged surface. Ultrathin film thickness and the hydrophilic property of a plasma polymer film minimize the reduction of flux.

Ort, förlag, år, upplaga, sidor
1993. Vol. 47, s. 2125-2133
Nationell ämneskategori
Naturvetenskap
Identifikatorer
URN: urn:nbn:se:ri:diva-26635OAI: oai:DiVA.org:ri-26635DiVA, id: diva2:1053638
Anmärkning
A820Tillgänglig från: 2016-12-08 Skapad: 2016-12-08 Senast uppdaterad: 2017-11-29Bibliografiskt granskad

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