SORBENT PREPARATION METHOD Russian patent published in 2002 - IPC

FIELD: oil pollution removal. SUBSTANCE: composition, containing urea- formaldehyde resin, surfactants, acidic hardening catalyst, conifer extract tanner, hydrocarbon-oxidizing microorganisms and, optionally, mineral salts, is foamed and then hardened and molded in the form of mats, bones, or granules with reduced content of formaldehyde. Sorbent is intended for treating water and ground polluted by petroleum products and can be subjected to biological regeneration. EFFECT: reduced toxicity and prolonged service time. 5 cl, 1 tbl