METHOD FOR PURIFYING WASTEWATER FROM AMMONIUM PERCHLORATE Russian patent published in 2017 - IPC C02F1/42 C02F1/28 B01J43/00 B01J47/04 C02F101/12 

FIELD: chemistry.

SUBSTANCE: in order to carry out the method, the wastewater contaminated with ammonium perchlorate is passed through an adsorber made in the form of six sections, and after successive passage of water through the adsorber sections, the purified water is discharged into the sewer. The 2nd and the 3rd sections are filled with KU-1 cation-exchange resin, the 1st section is filled with activated carbon of AG-3 grade, and the 4th, the 5th, and the 6th sections are filled with anion-exchange resin of AN-31 grade. Wastewater purification is carried out at a pH of 6-7. The method provides purification of wastewater from ammonium perchlorate to the requirements of sanitary and hygienic standards and is economical. This technology is waste-free and environmentally friendly. The spent resin after regeneration can be reused, and the spent activated carbon is sent for destruction.

EFFECT: increased efficiency of wastewater purification using this method.

1 dwg, 1 tbl