METHOD OF SEWAGE SETTLINGS DEHYDRATION ON THE SLUDGE DRYING BEDS Russian patent published in 2005 - IPC

FIELD: methods of sewage settlings dehydration.

SUBSTANCE: the invention is dealt with a sewage treatment, in particular, with methods of treatment of sewage settlings on the sludge drying beds. Before delivery of a settling onto a bed a water-soluble flocculating agent is entered in it. In the capacity of the flocculating agent use a water composition containing a high-molecular poly(ethylene oxide with the molecular weight of no less than 2·10⁶, a dispersant picked from a line of salts of the alkaline and alkali-earth metals, a cationic electrolyte and an activator picked from a line of polyatomic alcohols. The technical result ensures an increased efficiency of use of the sludge drying bed by an intensification of the process of the settling dehydration.

EFFECT: the invention ensures an increased efficiency of use of the sludge drying bed by an intensification of the process of the settling dehydration.

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