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2 492 147

(13)

(51)

IPC

C02F1/64(2006-01-01)

C02F1/66(2006-01-01)

C02F103/06(2006-01-01)

(21) (22)

Application

2011150372/05, 2011-12-09

(24)

Start date

2011-12-09

(22)

Actual filing date

2011-12-09

(45)

Published

2013-09-10

(72)

Inventor

Shijan Ljudmila NikolaevnaMachekhina Ksenija IgorevnaSmirnov Aleksej PavlovichVojno Denis Aleksandrovich

(73)

Holder

Federal'Noe Gosudarstvennoe Bjudzhetnoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Issledovatel'Skij Tomskij Politekhnicheskij Universitet"

METHOD OF PURIFYING UNDERGROUND WATER FROM STABLE FORMS OF IRON Russian patent published in 2013 - IPC C02F1/64 C02F1/66 C02F103/06

Abstract RU 2492147 C2

FIELD: chemistry.

SUBSTANCE: invention relates to water supply and can be used in water treatment systems to improve the quality of drinking water. The method of purifying underground water from stable forms of iron involves controlling pH of the purified water, followed by filtration and restoring pH to standard values. Carbon dioxide gas is fed into the water to be purified before a centrifugal pump and pH of the solution is lowered to 4-5. The space over the surface of the water is evacuated. The carbon dioxide gas is recycled by pumping out after decarbonation.

EFFECT: high efficiency and environmental friendliness of the process of purifying underground water from stable forms of colloidal iron.

2 dwg, 1 tbl, 6 ex

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RU 2 492 147 C2

Authors

Shijan Ljudmila Nikolaevna

Machekhina Ksenija Igorevna

Smirnov Aleksej Pavlovich

Vojno Denis Aleksandrovich

Dates

2013-09-10—Published

2011-12-09—Filed