SLUDGE PROCESSING METHOD Russian patent published in 2010 - IPC C02F11/14 C02F1/56 B01D21/01 

FIELD: oil and gas production.

SUBSTANCE: method for processing sludge after chemical treatment of thermoelectric power station waste water involves addition of a water-soluble high-molecular polymer to the sludge with subsequent mixing and air drying. The polymer used is represented by a powdery salt of carboxymethylcellulose in an amount of 3-15 wt % of the total sludge weight. After addition of the polymer the resultant mixture is formed. The method for processing sludge generated as waste product of thermoelectric power stations enables transformation of a moisture-saturated paste-like sludge into a solid compacted material which can be easily handled and transported with subsequent utilisation.

EFFECT: vacation of sludge tanks for further operation.

2 dwg, 2 ex