SYNERGETIC COMPOSITION AND METHOD OF INHIBITING GROWTH OF MICROORGANISMS Russian patent published in 2011 - IPC C02F1/50 A61L2/16 

FIELD: chemistry.

SUBSTANCE: invention relates to control of growth of microorganisms in industrial water supply systems. In particular, the invention relates to use of a composition which contains peracetic acid, hydantoin-stabilised halide or a hydantoin-based halide to inhibit growth of microorganisms, especially inhibiting growth of microorganisms and slime deposits in pulp-and-paper mill systems, steel plant and mining industry systems. Compositions used to inhibit growth of microorganisms contain effective amounts of hydantoin or halide of hydrantoin derivatives, a source-donor of halogen and peracetic acid, its derivatives and salts. Methods in which the disclosed compositions are used exhibit synergetic effect of components of the compositions when controlling growth of bacteria, particularly when controlling slime deposition, which lowers concentration of the biocidal compositions used to obtain an efficient result.

EFFECT: wood mass and cellulose obtained using the method for controlling growth of microorganisms in industrial water, as well as paper mass obtained from the wood mass and/or cellulose, treated using the method for controlling growth of microorganisms, are characterised by low total bacterial counts.

20 cl, 3 tbl, 3 ex