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2 150 997

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Application

98116555/12, 1998-09-03

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Start date

1998-09-03

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Actual filing date

1998-09-03

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Published

2000-06-20

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Inventor

Konjukhova T.P.Kikilo D.A.Mikhajlova O.A.Nagaeva S.Z.Chuprina T.N.Distanov U.G.Jarullina G.G.Kharisov Ju.G.

(73)

Holder

Tsentral'Nyj Nauchno-Issledovatel'Skij Institut Geologii Nerudnykh Poleznykh Iskopaemykh

METHOD OF ADSORPTION TREATMENT OF WATER Russian patent published in 2000 - IPC

Abstract RU 2150997 C1

FIELD: water treatment. SUBSTANCE: invention relates to treatment of strongly mineralized drinking and industrial water to remove heavy metal ions, petroleum derivatives, phenol, surfactants, and hardness salts. Water is filtered through preliminarily baked, activated naturally occurring adsorbent representing siliceous rock with following mineral composition (from Tatarstan deposits), wt %: opal-crystobalite 51-70, zeolite 9-25, clay constituent (montmorillonite, hydromica) 7-15, calcite 10-25, fragmental silt sandstone - the balance. Adsorbent is activated with 2 N HCl at room temperature for 20 min until content of CaO in adsorbent is no higher than 4%. EFFECT: enhanced water treatment efficiency, prolonged lifetime of adsorbent, and increased its capacity with respect to hardness salts. 3 tbl

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RU 2 150 997 C1

Authors

Konjukhova T.P.

Kikilo D.A.

Mikhajlova O.A.

Nagaeva S.Z.

Chuprina T.N.

Distanov U.G.

Jarullina G.G.

Kharisov Ju.G.

Dates

2000-06-20—Published

1998-09-03—Filed

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