A novel multistage kinetic modeling of flotation for wastewater treatment

Abstract

This study develops a new model for description of flotation kinetics. It defines flotation as a process that consists of several stages: separated air bubbles and particles, air bubbles and particles forming an aggregate, aggregate rising to the froth layer. This description significantly differs from known models, which are much simplified. The multistage model gives a novel in-depth description and considers different aspects of flotation, i.e. aggregate formation, which is critically important for flotation to take place. Experimental approval of the new model resulted in its accuracy. The model is to be used for a description of kinetics of all flotation processes in wastewater treatment. It helps in accurate design of flotation treatment plants and may be used for further research of the flotation process.

Statistical Modelling of Oil Removal from Surfactant/Polymer Flooding Produced Water by Using Flotation Column

“…This knowledge gap further increases the difficulty to optimize the flotation system. Moreover, the currently available flotation models failed to improve the efficiency of oil removal in the presence of SP [20][21][22] since it was tested in the conditions without SP chemicals.…”

About Determining the Distribution of Air Bubbles in Water by Sizes Using a Passive Hydroacoustic Method

“…Determining the distribution of air bubbles in water is one of the key tasks in the calculation, design and operation of gas-liquid systems. For example, when treating wastewater by flotation, both at the stage of preliminary calculation of the flotation stages and at the stage of maintaining the operating mode of the flotation unit, it becomes necessary to monitor the state of the gas-liquid mixture [1][2][3]. To solve such problems, optical and hydroacoustic systems are used.…”