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(19)

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2 443 636

(13)

(51)

IPC

C02F3/00(2006-01-01)

C02F1/28(2006-01-01)

B01J20/24(2006-01-01)

(21) (22)

Application

2010122769/10, 2010-06-03

(24)

Start date

2010-06-03

(22)

Actual filing date

2010-06-03

(45)

Published

2012-02-27

(72)

Inventor

Nikolaeva Larisa AndreevnaSotnikov Aleksej ViktorovichNedzvetskaja Regina Janovna

(73)

Holder

Gosudarstvennoe Obrazovatel'Noe Uchrezhdenie Vysshego Professional'Nogo Obrazovanija Gosudarstvennyj Ehnergeticheskij Universitet"

USE OF SLUDGE FORMED AT WATER TREATMENT PLANT OF THERMAL POWER PLANT AS SORBENT FOR BIOLOGICAL TREATMENT OF WASTE WATER Russian patent published in 2012 - IPC C02F3/00 C02F1/28 B01J20/24

Abstract RU 2443636 C1

FIELD: chemistry.

SUBSTANCE: disclosed is use of sludge formed during lime treatment and coagulation of raw water at a water treatment plant of a thermal power plant and having the chemical composition CaCO₃ + MgO + Mg(OH)₂ + Fe(OH)₃ + SiO₂ + Al(OH)₃, as a sorbent for biological treatment of industrial waste water. The sludge is used in amount ranging from 300 to 900 mg/dm³ of the total volume of waste water.

EFFECT: invention increases the effect of dephosphatisation of waste water and deamination, and reduces biological oxygen demand and concentration of suspended substances.

4 dwg, 1 tbl

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RU 2 443 636 C1

Authors

Nikolaeva Larisa Andreevna

Sotnikov Aleksej Viktorovich

Nedzvetskaja Regina Janovna

Dates

2012-02-27—Published

2010-06-03—Filed