A fitting of critical temperature periods in the aeration tank by the polynom of 10th order

The article deals with processes occuring in the aeration tank to remove nitrogen from organic substances in wastewater by usingbacterii. For an effective grow, the reproduction and metabolism, the temperature above 10 ºC is needed but the ideal temperatureis from 20 to 30 ºC. An intensive cold reduces or even stops the activity of the bacterii but heating of the aeration tank preventsundercooling.The fitting of temperature of the slurry in activated tank may predicate on set of heating of suspension in the tank in a criticaltime