Vedeneeva N.V. 1
Nechaeva O.V. 2
Zaiarsky D.A. 3
Tikhomirova E.I. 1
1 Saratov State Technical University n.a. Yu.A. Gagarin
2 Saratov State Medical University n.a. V.I. Razumovsky
3 Saratov State University n.a. N.G. Chernyshevsky
The purpose of the study was the research of sorption and disinfection fi ltration activity organic bentonite granules with biopolymer polydimethyldiallylammonium iodide sucrose. The fi ltration capacity of unmodifi ed organic bentonite granules and of those modifi ed by polydimethyldiallylammonium iodide sucrose was studied. Quality of fi ltration was determined by the level of microorganisms trapped in the fi lter. The strain of E. coli 113–13 at the concentration of 103 microbial colonies /ml was chosen as the experimental model in the research. It was founded that fi lters with unmodifi ed organic bentonite granules provide just partial mechanical delay of E.coli. Filter system comprising of granules enforced with biopolymers was disinfection and lead to fi fteen times fewer coli form bacterial colonies. Thus, we proved that polymers adsorbed on granules exhibited antimicrobial properties towards bacterial fl ora used as the indicator of water quality can be recommended as an effective component of water-purifying filters.