Salt rejection

1 - 7 of 7 results

Carbonised template silica membranes for desalination In this work we investigate the performance of inorganic membranes in desalination application using a low pressure pervaporation setup. Inorganic membranes were synthesized via a two-step sol–gel catalysed process employing tetraethylorthosilicate as the silica precursor. In addition, non-ligand su Desalination 236 (2009)
Desalination of raw water using a polyamide hollow fiber membrane An aromatic polymide hollow fibre membrane designed for a reverse osmosis system of 35,000 ppm total dissolved solids in take water was subjected to a low salinity of around 3000 ppm. The applied pressure and feed water temperature were varied to study their effects on permeation and salt rejection. Desalination 244 (2009)
Nanofiltration for the possible reuse of water and recovery of sodium chloride salt from textile effluent During the reactive dyeing of cotton, salts such as sodium chloride (NaCl) are placed in a dyebath to aid the exhaustion of various dyes onto the fabric while bases are added to raise the pH from around neutral to pH 11 to achieve fixation. Afterwards, the used dyebath solution, called dyebath spent Desalination 172 (2005)
Salt: rejection in nanofiltration for single and binary salt mixtures in view of sulphate removal Three commercial membranes (NF70, NF90 and TFC-SR) were firstly characterized in terms of pure water flux and the: rejection of uncharged (alcohols and sugars) compounds. Subsequently, the rejection of monovalent (sodium and chloride) and divalent (calcium and sulphate) ions in single (NaC1, CaC12an Desalination 171 (2004)
Salt rejection in nanofiltration for single and binary salt mixtures in view of sulphate removal Three commercial membranes (NF70, NF90 and TFC-SR) were firstly characterized in terms of pure water flux and the rejection of uncharged (alcohols and sugars) compounds. Subsequently, the rejection of monovalent (sodium and chloride) and divalent (calcium and sulphate) ions in single (NaCl, CaCl2 an Desalination 171 (2004)
Change of the performance properties of nanofiltration cellulose acetate membranes by surface adsorption of polyelectrolyte multilayers Surface modification of nanofiltration cellulose acetate (CA) membranes was carried out by alternating layer-bylayer deposition of acidic chitosan (CHI) and sodium alginate (ALG) as the cationic and anionic polyelectrolyte, respectively. The supporting CA membranes were obtained by a phase separatio Desalination 163 (2004)
Separation of ions in acidic conditions using NF The retention of Na+ and Mg2+ ions in their nitrate solutions was studied in the pH range 0.5–7. Three different Mg concentrations were used. Two nanofiltration membranes (NF 45 and Desal-5 DK) were tested. The NF 45 membrane showed higher retention values for the tested ions. The Mg2+ ions were ver Desalination 147 (2002)

Carbonised template silica membranes for desalination

In this work we investigate the performance of inorganic membranes in desalination application using a low pressure pervaporation setup. Inorganic membranes were synthesized via a two-step sol–gel catalysed process employing tetraethylorthosilicate as the silica precursor. In addition, non-ligand su

Desalination 236 (2009)

Desalination of raw water using a polyamide hollow fiber membrane

An aromatic polymide hollow fibre membrane designed for a reverse osmosis system of 35,000 ppm total dissolved solids in take water was subjected to a low salinity of around 3000 ppm. The applied pressure and feed water temperature were varied to study their effects on permeation and salt rejection.

Desalination 244 (2009)

Nanofiltration for the possible reuse of water and recovery of sodium chloride salt from textile effluent

During the reactive dyeing of cotton, salts such as sodium chloride (NaCl) are placed in a dyebath to aid the exhaustion of various dyes onto the fabric while bases are added to raise the pH from around neutral to pH 11 to achieve fixation. Afterwards, the used dyebath solution, called dyebath spent

Desalination 172 (2005)

Salt: rejection in nanofiltration for single and binary salt mixtures in view of sulphate removal

Three commercial membranes (NF70, NF90 and TFC-SR) were firstly characterized in terms of pure water flux and the: rejection of uncharged (alcohols and sugars) compounds. Subsequently, the rejection of monovalent (sodium and chloride) and divalent (calcium and sulphate) ions in single (NaC1, CaC12an

Desalination 171 (2004)

Salt rejection in nanofiltration for single and binary salt mixtures in view of sulphate removal

Three commercial membranes (NF70, NF90 and TFC-SR) were firstly characterized in terms of pure water flux and the rejection of uncharged (alcohols and sugars) compounds. Subsequently, the rejection of monovalent (sodium and chloride) and divalent (calcium and sulphate) ions in single (NaCl, CaCl2 an

Desalination 171 (2004)

Change of the performance properties of nanofiltration cellulose acetate membranes by surface adsorption of polyelectrolyte multilayers

Surface modification of nanofiltration cellulose acetate (CA) membranes was carried out by alternating layer-bylayer deposition of acidic chitosan (CHI) and sodium alginate (ALG) as the cationic and anionic polyelectrolyte, respectively. The supporting CA membranes were obtained by a phase separatio

Desalination 163 (2004)

Separation of ions in acidic conditions using NF

The retention of Na+ and Mg2+ ions in their nitrate solutions was studied in the pH range 0.5–7. Three different Mg concentrations were used. Two nanofiltration membranes (NF 45 and Desal-5 DK) were tested. The NF 45 membrane showed higher retention values for the tested ions. The Mg2+ ions were ver

Desalination 147 (2002)

Request a quote

Phone: +31 152 610 900
info@lenntech.com

Request a quote