Membrane and Water Treatment
Volume 1, Number 3, 2010, pages 171-179
DOI: 10.12989/mwt.2010.1.3.171
Continuous dialysis of selected salts of sulphuric acid
Helena Bendova, Pavel Šnejdrla and Zden k Palaty
Abstract
The transport of selected salts of sulphuric acid (cobalt, copper, iron(II), manganese, nickel
and zinc sulphate) through an anion-exchange membrane Neosepta-AFN was investigated in a countercurrent
continuous dialyzer at various salt concentrations and volumetric liquid flow rates. The basic
transport characteristics − the rejection coefficient of salt and the permeability of the membrane − were
calculated from measurements at steady state. The salt concentration in model mixtures was changed in
the limits from 0.1 to 1.0 kmol m−3 and the volumetric liquid flow rate of the inlet streams was in the
limits from 8
Key Words
diffusion dialysis; anion-exchange membrane; continuous dialyzer; salt of sulphuric acid; permeability of membrane.
Address
Institute of Environmental and Chemical Engineering, Faculty of Chemical Technology,
University of Pardubice, Studentska 573, 532 10 Pardubice, Czech Republic