Quantification of sonochemical and sonophysical effects in a 20 kHz probe-type sonoreactor: Enhancing sonophysical effects in heterogeneous systems with milli-sized particles

Abstract

Graphical abstract

Effect of dissolved gases on sonochemical oxidation in a 20 kHz probe system: Continuous monitoring of dissolved oxygen concentration and sonochemical oxidation activity

“…Studies investigating the applied frequency and input power, which are the most basic experimental conditions, have consistently reported that enhanced sonochemical effects can be obtained by applying a frequency of several hundred kilohertz and an appropriate input power [1] , [2] . Furthermore, to enhance sonochemical oxidation, the combination with other advanced oxidation processes (AOPs) and the addition of oxidizing agents/dissolved gases/particulate matter has also been examined [1] , [2] , [3] , [4] , [5] , [6] , [7] , [8] , [9] , [10] . Recent studies have actively investigated geometric effects, such as changes in the size/shape of the reactor, as well as the transducer location and liquid level in the ultrasonic reactor [11] , [12] , [13] , [14] , [15] , [16] .…”

Joint effects of gas bubbles and solid particles on sonochemical inhibition in sonicated aqueous solutions

“…Several studies have investigated sonochemical activity in solid particle suspensions [14] , [15] , [16] , [17] , [18] , [19] , [20] , [21] , [22] and in bubbly liquids [23] , [24] , [25] , [26] and are mostly concerned with how the quality and quantity of these solid/gas phases influence bubble characteristics and sonoreactions. Surface roughness, size, and shape are the most-studied indicators of particle quality.…”