Journal ArticleDOI
Removal of metal complexes by nanofiltration in a TCF pulp mill: technical and economic feasibility
Armando Lastra,Daniel Varona Gómez,Javier Romero,José Luis Francisco,Susana Luque,José R. Álvarez +5 more
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TLDR
In this article, two composite aromatic polyamide membranes from different manufacturers and a ceramic membrane (titanium oxide supported on zirconium oxide) were tested on a pilot scale at the pulp mill to assess the viability of the nanofiltration process for the industrial application.About:
This article is published in Journal of Membrane Science.The article was published on 2004-10-15. It has received 46 citations till now. The article focuses on the topics: Nanofiltration & Ceramic membrane.read more
Citations
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Journal ArticleDOI
Iron and manganese removal and membrane fouling during UF in conjunction with prechlorination for drinking water treatment
TL;DR: In this article, the removal of various levels of iron and manganese along with chlorine dosages from lake water was investigated using different ultrafiltration (UF) systems in conjunction with an in-line prechlorination step.
Journal ArticleDOI
Rejection and modeling of arsenate by nanofiltration: Contributions of convection, diffusion and electromigration to arsenic transport
Jun Fang,Baolin Deng +1 more
TL;DR: In this article, two nanofiltration (NF) membranes, DK and DL, were characterized by attenuated total reflection-Fourier transform infrared spectroscopy, surface charge titration, pore size determination and salt rejection.
Journal ArticleDOI
Nanofiltration of Acid Mine Drainage
TL;DR: In this paper, Nanofiltration (NF) membranes were used to filter acid mine drainage at two different pressure levels of 20 and 30 bar and at different concentrations of acid mine sludge.
Journal ArticleDOI
Study of ferrous iron oxidation in Morocco drinking water in an airlift reactor
TL;DR: In this paper, the performance of iron(II) oxidation in a split-rectangular air-lifted reactor was investigated under both unsteady and steady-state conditions.
Journal ArticleDOI
Synthesis and characterization of clay-based ultrafiltration membranes supported on natural zeolite for removal of heavy metals from wastewater
Wala Aloulou,Hajer Aloulou,Mouna Torjmen Khemakhem,Joëlle Duplay,Michael O. Daramola,Raja Ben Amar +5 more
TL;DR: In this article, the authors developed and evaluated new but low cost ultrafiltration (UF) ceramic membranes made from nanoparticles of smectite (previously prepared by sol-gel method) and obtained via the Layer-by-Layer technique, and deposited on tubular microporous supports obtained from natural zeolite via the extrusion process.
References
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Journal ArticleDOI
Retention measurements of nanofiltration membranes with electrolyte solutions
TL;DR: Retention measurements with single salt solutions of CaCl2, NaCl and Na2SO4 revealed that the rejection mechanism of commercial polymeric nanofiltration membranes investigated in this study may be divided into two categories: positively and negatively charged membranes, and membranes for which Donnan exclusion seems to play an important role.
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Fouling and retention of nanofiltration membranes
TL;DR: In this article, the fouling and retention of four different nanofiltration membranes (NF40, NTR-7450, NM-7410 and NM-7250) were followed using different model substances, and it could be seen that multivalent salts were retained better than small organic substances.
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Separation potential of nanofiltration membranes
Robert Rautenbach,A. Gröschl +1 more
TL;DR: The potential of realizing the Donnan-effect with respect to anions of different valency is discussed in this article, where it is shown that a high rejection for single-valent salts is not required or even unwanted.
Journal ArticleDOI
Critical flux in NF of high molar mass polysaccharides and effluents from the paper industry
Mika Mänttäri,Marianne Nyström +1 more
TL;DR: In this article, high molar mass polysaccharides (locust bean gum and karaya gum) and effluents from a mechanical pulp mill and a paper mill were nanofiltered with commercially available nanofiltration (NF) membranes.
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Peptide and amino acid separation with nanofiltration membranes
TL;DR: Separation of peptides having different isoelectric points with nanofiltration membranes was possible by adjusting the pH, and charged amino acids and peptides were rejected while neutral amino acidsand peptides permeated through the membranes.
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