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Comparative study of commercially available polymeric and microporous silica membranes for the dehydration of IPA/water mixtures by pervaporation/vapour permeation
The performance of commercially available polymeric and microporous silica membranes (both supplied by Sulzer Chemtech GmbH) was investigated with respect to the dehydration of binary mixtures of isopropyl alcohol (IPA ...
Desalination 149 (2002)
... of the world, the shortage of good quality feed-water is forcing plant owners either to run their membrane systems with undesirable levels of silica or to restrict recovery rates. High silica brines can cause severe and irreversible membrane fouling. Restricting recovery rates is never a popula ...
Desalination 124 (1999)
Studies on interactions between membranes (RO and NF) and pollutants (SiO2, NO3–, Mn++ and humic acid) in water
... (NF), and the interaction between membrane and pollutant in water cleaning-up were studied. The separation efficiency of pollutants like silica, nitrate, manganese and humic acids (HA) by means of RO and NF membranes (both of spiral wound type, in polyamide) was determined. The interactio ...
Desalination 138 (2001)
The feasibility of silica removal in RO treatment of groundwater from a Western Australian mining and processing operation to prevent scaling and enhance water recovery wa ...
Desalination 340 (2014)
... pervaporation setup. Inorganic membranes were synthesized via a two-step sol–gel catalysed process employing tetraethylorthosilicate as the silica precursor. In addition, non-ligand surfactants were embedded and carbonized into the silica matrix. Normal silica membranes have typica ...
Desalination 236 (2009)
... and proton conductivity as sulfuric acid doping agent concentration was increased. The KSiN is unique in term of its miscible hybrid structure of silica particles modified with Nafion® structured Krytox 157 FSL chain (KSi) and Nafion®. Based on the KSiN membranes with different KSi content, it wa ...
Desalination 235 (2009)