Diffusion

11 - 14 of 14 results

A direct osmosis study was carried out using several 1:1 and 2:1 electrolytes, which diffused in a RO TFC membrane. The solute permeab ility D SMK S/* h as been calculated using the preferential sorption capillary flow model. It was found that to some extent the ions maintain their hydration in the
Desalination 144 (2002)

The time-lag method can be easily used to characterize transport polymer features for permanent gases whereas with volatile organic vapors (VOCs) this routine procedure does not give valuable results, in particular in case of diffusion varying with activity, swelling of the polymer or small time-lag
Desalination 144 (2002)

Well-equilibrated molecular packing models have been produced for seven different polyimides. For all packings the transport properties (solubility and diffusion coefficient) have been calculated for nitrogen, oxygen and carbon dioxide using the Gusev-Suter method. Comparison with experimental data
Desalination 144 (2002)

The main environmental problem of the industries dedicated to the desalination of seawater is the brine discharge coming from the processes of desalination of seawater by means of reverse osmosis. Ionics Ibérica S. A. develops its industrial activity around the desalination of sea and brackish water
Desalination 139 (2001)