FIELD: chemistry.
SUBSTANCE: invention can be used in production of textile materials for fine purification of waste water from dyes. Method is realised by treating dyed waste water, which contains dyes cationic red 2S, direct pure blue, with UV radiation with wavelength 186-254 nm in the presence of hydrogen peroxide in concentration of 1-5 mg/l. Treatment is carried out together with ultrasound with power of 0.2-0.5 W/cm2 at a frequency of 35-47 kHz.
EFFECT: method increases the degree of fine purification of waste water from dyes and cuts the treatment time while reducing the amount of hydrogen peroxide and providing simultaneous purification from surfactants.
1 dwg, 2 tbl, 9 ex
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