In this article, the antibacterial properties enriched bentonite Tam Bo deposit, Lam Dong Province (Vietnam) modified in various ways: alkali - by processing enriched bentonite LiOH solution at a temperature of 60°C for 30 min, brine - by processing enriched bentonite, 3% solution of Na2CO3 at 55°C for 30 min, and nanoparticles of silver - silver nanoparticles by immobilizing on the surface of the bentonite by precipitation of silver nanoparticles AgNO3 solution. Initially, the bentonite clay deposits Tam Bo contains 40 - 60 wt% of active sorptionmontmorillonit
