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Abstract
Polymeric fibrous ion-exchange materials based on polyacrylonitrile matrix, produced in the form of cation-exchanger KN-1 and anion-exchanger AS-1 were the object of the study. We studied the sorption properties of these materials to heavy metal salts and products of their chemical transformation with flotation reagents. According to obtained results, exchange processes have high speed and materials are characterized by high value of absorption – up to 250 mg/g. The introduction of a cascade filtration scheme ensures the treatment of highly contaminated multicomponent industrial wastewater to levels that comply with the hygienic requirements. The advantages of the materials under study are the possibility of their repeated regeneration (by acid and alkali) without losing their original properties and the possibility of concentrating the desorbed metals for the purpose of their recycling again.
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