METHOD OF WASHING WATER TREATMENT DEVICES Russian patent published in 2010 - IPC A61L2/16 

Abstract RU 2402350 C1

FIELD: chemistry.

SUBSTANCE: invention relates to methods of washing water treatment filters and is mainly meant for eliminating bacterial contamination from packed bed filters and membrane elements. The method of washing water treatment devices with a filter element involves treatment of the devices with a disinfecting aqueous solution containing hydrogen peroxide and an organic disinfectant. The devices are further treated with an aqueous solution of a salt of polyhexamethylene guanidine with concentration of 0.01-0.1 g/l. The organic disinfectant used is alkyldimethylbenzyl ammonium chloride. The salt of polyhexamethylene guanidine used is polyhexamethylene guanidine hydrochloride or phosphate.

EFFECT: invention increases efficiency of washing and removing disinfectant-resistant bacteria without dismantling membrane installations or without removing filter material.

6 cl, 5 ex

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RU 2 402 350 C1

Authors

Krasnov Mikhail Stanislavovich

Dates

2010-10-27Published

2009-05-21Filed