Abstract
Ultrafiltration of aqueous sodium lignosulfonate solutions through track membranes with 30-nm pores has been studied. Membrane selectivity has been investigated as depending on concentrations of sodium lignosulfonate (10, 20, 50, and 100 mg/dm3) and NaCl electrolyte (10–3, 10–2, and 10–1 M). Ultrafiltration of lignosulfonate solutions has been shown to be associated with the “charge-related” mechanism of membrane selective permeability. Membrane selectivity decreases with a rise in the concentrations of lignosulfonate and NaCl, as well as the degree of filtrate extraction.
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Original Russian Text © O.N. Koval’, Yu.L. Moreva, Yu.M. Chernoberezhskii, 2016, published in Kolloidnyi Zhurnal, 2016, Vol. 78, No. 2, pp. 256–259.
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Koval’, O.N., Moreva, Y.L. & Chernoberezhskii, Y.M. A study of the mechanism for ultrafiltration isolation of sodium lignosulfonate from aqueous solutions with track membranes. Colloid J 78, 273–276 (2016). https://doi.org/10.1134/S1061933X1602006X
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DOI: https://doi.org/10.1134/S1061933X1602006X