The book provides information on kinetics of wastewater flotation process of using Ksenofontov multistage flotation model. There is description of getting analytical decision in individual cases. These cases can be often solved by numerical methods as demonstrated on various examples. Particular attention is paid to the application of the Jordan-Gauss method. The author considers examples of calculation using various flotation equipment in wastewater and suspensions treatment. The book is for wastewater treatment specialists, university professors, bachelor and master degree holders.