METHOD FOR TREATMENT OF WASTE WATER PRODUCED IN MANUFACTURE OF SOLID PROPELLANT COMPONENTS Russian patent published in 2017 - IPC C02F1/02 C02F11/10 F23G7/04 C02F103/34 

FIELD: chemistry.

SUBSTANCE: waste water, produced in the manufacture of solid propellant components, contaminated with nickel and lead ions, sulphates, nitrates and organic materials is directed to a thermal treatment plant, where it is subjected to fire treatment. First it arrives in a cyclone furnace at a temperature of 800-900°C, therefrom it is sent to a secondary incinerator at a temperature of 1100-1200°C provided with a secondary combustion air blower for flue gas burning. Incinerator secondary chamber inlet is fitted with a carbamide solution injector, where 40% solution of carbamide is injected into the gas flow for neutralisation of nitrogen oxides. Nitrates, sulphates and organic materials along with the heavy metal ions are removed from the contaminated waste water. Environmentally friendly universal process of advanced treatment of combustion products.

EFFECT: cost-effective method, improved decontamination efficiency.

2 cl, 1 dwg, 3 tbl