SIMULTANEOUS ACTION OF CAVITATION AND INERT GASES ON THE WATER PURIFICATION FROM BACTERIAL CELLS

The simultaneous effect of cavitation and inert gases (argon helium) on the process microorganisms (MO) destruction has been studied. Sporogenic rod-shaped bacteria Bacillus cereus type were used for study. initial microbial load was 104 cells per 1 cm3 test water. volume water study 75 cm3. source phenomenon an ultrasonic generator with a frequency 22 kHz. gas bubbled through system at rate 0.2 cm3/s throughout duration (2 h) total flow 0.7 dm3/h. After every 30 min action gas/cavitation, samples taken to determine dynamics number (NM) from time treatment. change in NM each is given depending unit To compare effectiveness studied gases, values effective constant bacterial (kd) calculated according kinetic equation first-order reaction. According kd values, higher efficiency during argon bubbling under conditions noted, comparison helium similar experimental conditions. It shown that kd(Ar/US) > kd(He/US). purification pollutants biological origin depends nature gas.