PROMISING MULTIFUNCTIONAL ANIONITES FOR THE EXTRACTION OF CHROMIUM (VI) IONS

30% of the chromium ore reserves in world are concentrated Kazakhstan, during processing which large volumes wastewater containing toxic salts, formed. Сhromium is one priority components both terms emission and toxicity (for Cr(VI), maximum permissible concentration 0.05 mg/l). The compounds (III) especially (VI) have a general toxic, allergenic, carcinogenic, mutagenic effect on human body, among most dangerous pollutants for environment. aim this work to develop technological scheme extraction Cr ions by multifunctional ion exchangers. Methods. Anionite, based diglycidyl ether dioxyphenylpropane, allylglycidyl polyethylenimine – Ionite No. 1 has been synthesized polycondensation, epoxyamine from benzylamine epichlorohydrin, condensation No.2 obtained with polyethylenimine. sorption newly anionites studied, using model solutions concentrations 25, 50, 75 100 mg/l (VI). Results discussion. It established that No.1 exhibits greater affinity ions. So, its capacity 13.5, 11.7 mg/g. Conclusion. We proposed basic desalination plant, consisting modular units: reagent-mechanical, sorption, membrane, exchange bacterial purification. reagentmechanical purification initial stage water treatment, designed isolate insoluble coarse- fine-dispersed impurities.