NDLI: Water-soluble polyelectrolyte in conjunction with membrane systems: modeling and simulation of retention profiles from washing method

Content Provider	Springer Nature Link
Author	Palencia, Manuel Vera, Myleidi Rivas, Bernabé L.
Copyright Year	2014
Abstract	Liquid-phase polymer-based retention (LPR) is a novel technique for eliminating, concentrating and separating pollutants from aqueous effluents. Using the washing method, LPR can provide a retention profile that contains the contributions of all the factors associated with the retention. To advance the LPR technique and further our understanding of polymeric systems in aqueous solutions, a model of the retention profile was developed and applied to Cu2+ retention. The removal of Cu2+ was studied with LPR experiments employing various polymers, a range of pH values (2.0, 3.5, and 5.0) and different interfering species (Co2+, Ni2+, and Zn2+). The resulting retention profiles were simulated from the experimental data. The results revealed constant R syst values at pH 5.0. However, at pH 3.5 and 2.0, R syst by PVPA exhibited the following behavior: Cu2+ > Zn2+ > Co2+ > Ni2+ and Cu2+ > Co2+ ≈ Ni2+ > Zn2+, respectively. In addition, our results suggested that at pH 6.0, Co2+, Zn2+ and Ni2+ affected the Cu2+ retention by PVPA by decreasing the retention capacity due to the competition of ions for functional groups on the polymer chains, whereas at pH 2.0, the preferential retention of Cu2+ and Ni2+ was observed.
Starting Page	535
Ending Page	548
Page Count	14
File Format	PDF
ISSN	01700839
Journal	Polymer Bulletin
Volume Number	72
Issue Number	3
e-ISSN	14362449
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-12-21
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Polyelectrolyte Washing method Interaction parameter Polymer domain Liquid-phase polymer-based retention (LPR) Polymer Sciences Soft and Granular Matter, Complex Fluids and Microfluidics Characterization and Evaluation of Materials Physical Chemistry
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Chemistry Condensed Matter Physics Polymers and Plastics

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