Feasibility study of selectivity forecast of nanofiltration membranes
| Autor: | A. Kononova, D. Kucheruk, A.A. Kavitskaya |
|---|---|
| Rok vydání: | 2007 |
| Předmět: |
chemistry.chemical_classification
Mechanical Engineering General Chemical Engineering Analytical chemistry General Chemistry Polymer Membrane technology Salt solution Membrane Chemical engineering chemistry General Materials Science Nanofiltration Selectivity Saturation (chemistry) Volume concentration Water Science and Technology |
| Zdroj: | Desalination. 204:380-384 |
| ISSN: | 0011-9164 |
| DOI: | 10.1016/j.desal.2006.02.042 |
| Popis: | Transport characteristics of nanofiltration membranes OPMN-K, OPMN-KM 3 , OPMN-P, and OPMN-KN (produced by “Polimersintez”, Russia) were studied in the process of separation of low concentration solutions of salts NaCl, Na 2 SO 4 , CaCl 2 . Operation areas of the membranes were determined for each salt solution, where the selectivity–volume flow relationship reached its saturation. The data were obtained showing a predominant role of the charge, which determines selectivity of membranes under conditions of separation. We have analyzed a relationship between experimental results and data on the composition of polymers that are used in synthesizing the membranes studied. On the basis of the experimental results an attempt was made to predict the selectivity of membranes in separation of low concentration solutions of salts. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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