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(19)

(11)

2 414 431

(13)

(51)

IPC

C02F1/32(2006-01-01)

C02F1/36(2006-01-01)

C02F103/04(2006-01-01)

(21) (22)

Application

2009130946/05, 2009-08-13

(24)

Start date

2009-08-13

(22)

Actual filing date

2009-08-13

(45)

Published

2011-03-20

(72)

Inventor

Batoev Valerij BabudorzhievichMatafonova Galina GeorgievnaAstakhova Svetlana Aleksandrovna

(73)

Holder

Uchrezhdenie Rossijskoj Akademii Nauk Bajkal'Skij Institut Prirodopol'Zovanija Sibirskogo Otdelenija Ran So Ran)

METHOD FOR PHOTOCATALYTIC WATER DISINFECTION Russian patent published in 2011 - IPC C02F1/32 C02F1/36 C02F103/04

Abstract RU 2414431 C1

FIELD: chemistry.

SUBSTANCE: invention relates to combined methods of disinfecting water sing UV radiation in the presence of a photocatalyst - titanium dioxide. The invention can be used to disinfect drinking water in water supply systems of settlements, water in pools and spas. The method is realised by treating water with UV radiation in the presence of a catalyst - titanium dioxide particles with concentration of 0.5 g/l. The radiation used is narrow-band UV radiation and the catalyst in form of titanium dioxide nanoparticles with average diametre of 23.3 nm undergoes preliminary UV radiation treatment at frequency 45 kHz and power 50 W for 15 minutes.

EFFECT: method ensures significantly short treatment time while maintaining high disinfection efficiency.

1 tbl, 2 ex

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RU 2 414 431 C1

Authors

Batoev Valerij Babudorzhievich

Matafonova Galina Georgievna

Astakhova Svetlana Aleksandrovna

Dates

2011-03-20—Published

2009-08-13—Filed