METHOD OF DETOXICATING AND DISINFECTING WASTE WATER RESIDUE Russian patent published in 2011 - IPC C02F11/02 C02F11/14 

Abstract RU 2432324 C1

FIELD: chemistry.

SUBSTANCE: invention relates to environmental protection, particularly to disinfection of waste water residue obtained during treatment of waste water on biological treatment plants. The method of detoxicating waste water residue involves treatment with a humin reagent taken in amount of 0.3-10.0 wt % per dry substance of the waste water residue, wherein the product of treating waste water residue with a humin reagent is further treated with a preparation of biologically active microorganisms, taken in amount of 0.05-1.00 l per ton of dry substance of the waste water residue. The product obtained using the disclosed method can be used as an organomineral fertiliser and insulation material on domestic and industrial waste dumping sites. Also disclosed is the capacity of biologically active microorganisms to not only disinfect waste water residue from pathogenic microflora and helminth eggs, but also participate in the process of disinfection from inorganic toxicants - heavy metal salts and organic toxicants - petroleum hydrocarbons, petroleum products and benz(a)pyrene.

EFFECT: high efficiency of the method of detoxicating waste water residue owing to stabilisation thereof, reduced content of inorganic and organic toxicants, as well as due to additional disinfection.

6 tbl, 2 ex

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RU 2 432 324 C1

Authors

Nevalenova Tat'Jana Vasil'Evna

Safarova Valentina Isaevna

Galinurov Il'Dus Rafikovich

Kareva Elena Sergeevna

Sergejcheva Ksenija Aleksandrovna

Dates

2011-10-27Published

2010-05-11Filed