METHOD FOR PURIFICATION OF WASTEWATER Russian patent published in 2022 - IPC C02F1/72 

Abstract RU 2778318 C2

FIELD: chemistry.

SUBSTANCE: invention relates to the field of treatment of wastewater of an industrial process of propylene oxide production. Treatment of wastewater is carried out by catalytic wet oxidation, in which a flow containing wastewater is supplied to a reactor, the flow containing wastewater is treated by oxidation in the presence of oxygen and a catalyst containing porous carbon balls doped with metal nanoparticles. At least part of the treated flow is transferred to a separator, where the treated flow is separated into a gas flow and a liquid flow, and part of the liquid flow is recirculated to the reactor.

EFFECT: invention allows for the development of a simple and effective method for purification under milder conditions with reduction in chemical oxygen demand (COD) in absolute and percentage terms.

10 cl, 2 tbl, 1 dwg

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RU 2 778 318 C2

Authors

Basak, Kaushik

Van Mourik, Arian

Verma, Nishith

Yadav, Ashish

Dates

2022-08-17Published

2018-11-20Filed