Initial flux decline and initial rejection increase for swollen ionic membranes
نویسندگان
چکیده
منابع مشابه
Initial Adhesion of Microorganisms to Polymeric Membranes
Biofilms form in nearly every environment that provides a surface, nutrients, and water. They can be found, for example, in almost all natural aquatic environments; on teeth, bone interstices, and oral epithelia of animals and humans; on hulls of marine installations and ship bottoms; on prosthetic devices and medical implants; on water conduits and in filters; and even ion the “sterile” surfac...
متن کاملComparison of humic acid rejection and flux decline during filtration with negatively charged and uncharged ultrafiltration membranes.
Increasingly stringent regulations for drinking water quality have stimulated the ultrafiltration (UF) to become one of the best alternatives replacing conventional drinking water treatment technologies. However, UF is not very effectively to remove humic acid due to the comparatively larger pore size compared to the size of humic acid. Fouling issue is another factor that restricts its widespr...
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Fouling behaviour and its impact on the rejection of trace organic contaminants (TrOCs) by forward osmosis (FO) were investigated.Membrane fouling was simulated using humic acid and colloidal particles asmodel foulants at different initial permeatewater fluxes.Water flux declinewas insignificant at an initial permeate flux of 9 L/m2h and the fouling layerwas loose and fluid-like. By contrast, t...
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The entrance of Cd (II) to aqueous environments causes a major problem to human health. The current article examines the efficiency of TiO2 and γ-Al2O3 nanoparticles in Cd (II) removal from aqueous medium as influenced by different chemical factors, such as pH, initial concentration, background electrolyte, and ionic strength, in accordance with standard experimental methods. It conducts Batch ...
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The entrance of Cd (II) to aqueous environments causes a major problem to human health. The current article examines the efficiency of TiO2 and γ-Al2O3 nanoparticles in Cd (II) removal from aqueous medium as influenced by different chemical factors, such as pH, initial concentration, background electrolyte, and ionic strength, in accordance with standard experimental methods. It conducts Batch ...
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ژورنال
عنوان ژورنال: Journal of Applied Polymer Science
سال: 1976
ISSN: 0021-8995,1097-4628
DOI: 10.1002/app.1976.070200502