DISSOLVED AIR FLOTATION - EXPERIMENTS AND KINETIC-ANALYSIS

Based on the kinetic model of dissolved air flotation processes propos ed in our previous paper, an experimental verification was carried out with batch and continuous flow apparatuses. We measured the character istic properties of air bubbles, floc particles and their agglomerates . Kinetic parameters, such as the contact time and the intensity of tu rbulence in a contact zone and the bubble-flee collision-attachment fa ctor were estimated and verified by comparing experimental data with k inetic model simulations. A comparison of the experimental data from t he floating velocity distribution and the removal rate in a continuous flow apparatus with the simulations calculated from these kinetic par ameters showed a good fit. These results supported the proposed kineti c model.