Lamikhova Anna P. RussiaSaratov State University , 83, Astrakhanskaya str., Saratov, 410012, Russia mareidrei@mail.ru Author's articles Adsorption of organic reagents by natural bentonites modified with aluminum and iron (III) polyhydroxocations The study of the physic-chemical properties of bentonite-based composite sorbents modified with carbon under the conditions of catalytic carbonization