Open AccessHYGIENIC EFFICIENCY OF WASTEWATER TREATMENT USING POLYMERIC ION-EXCHANGE MATERIALS
Author(s) -
S.V. Skupnevskiy
Publication year - 2019
Publication title -
zdorovʹe naseleniâ i sreda obitaniâ
Language(s) - English
Resource type - Journals
eISSN - 2619-0788
pISSN - 2219-5238
DOI - 10.35627/2219-5238/2019-311-2-40-44
Subject(s) - sorption , polyacrylonitrile , ion exchange , wastewater , alkali metal , filtration (mathematics) , chemical engineering , chemistry , ion exchange resin , matrix (chemical analysis) , waste management , materials science , absorption (acoustics) , adsorption , polymer , inorganic chemistry , ion , organic chemistry , chromatography , composite material , engineering , statistics , mathematics
Polymeric fibrous ion-exchange materials based on polyacrylonitrile matrix, produced in the form ofcation-exchanger KN-1 and anion-exchanger AS-1 were the object of the study. We studied the sorptionproperties of these materials to heavy metal salts and products of their chemical transformation withflotation reagents. According to obtained results, exchange processes have high speed and materials arecharacterized by high value of absorption – up to 250 mg/g. The introduction of a cascade filtrationscheme ensures the treatment of highly contaminated multicomponent industrial wastewater to levelsthat comply with the hygienic requirements. The advantages of the materials under study are thepossibility of their repeated regeneration (by acid and alkali) without losing their original properties andthe possibility of concentrating the desorbed metals for the purpose of their recycling again.