Conclusions
A pilot plant check of the process of regenerating sodium-cation exchange filters with model solutions of sodium sulfate and with preliminarily purified wastewater instead of sodium chloride has been carried out.
It has been found that the process of resin regeneration with model sodium sulfate solutions and with preliminarily purified wastewater takes place rather efficiently.
Regeneration of sodium-cation exchange filters with preliminarily purified wastewater permits one to repeatedly utilize discharged wastewater, which eliminates the use of sodium chloride for regeneration and reduces the salt and chloride content in water resources.
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Literature cited
A. A. Mazo and V. P. Meleshko, Water preparation and Protection of Water Resources from Contamination. Materials of Conference of Protection of Resources and Purification of Wastewater [in Russian], Izd. Voronezhsk. Univ., Voronezh (1964), pp. 97–100.
V. A. Klyachko and I. É. Apel'tsin, Purification of Natural Water [in Russian], Sroiizdat, Moscow (1971).
V. V. Ashanin and P. I. Zhuravlev, Regeneration of Sodium-Cation Exchange Filters with Salt Solutions Containing Sulfates [in Russian], Tr. Inst. VODGEO, Moscow (1980), pp. 18–20.
Additional information
Translated from Khimicheskie Volokna, No. 6, pp. 18–19, November–December, 1984.
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Shimko, I.G., Romanova, T.A., Tolstov, V.N. et al. Regeneration of sodium-cation exchange resin filters with preliminarily purified wastewater. Fibre Chem 16, 401–404 (1985). https://doi.org/10.1007/BF00546254
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DOI: https://doi.org/10.1007/BF00546254