Numerical study on the desorption processes of oil droplets inside oil-contaminated sand under cavitation micro-jets

Ultrasonics and sonochemistry: Editors’ perspective

“…Another environmental application of US to solids is the oil recovery from oily solid wastes or sludges [91] , [92] . The most important parameters affecting oil separation are US power and hydrophilicity of sludge; a hydrophilic sludge is more prone to let oil separate [93] .…”

Evaporation issues of acoustically levitated fuel droplets

“…ALM has been a useful tool for the analysis of non-contact and pre-processed samples [19] , [20] , [21] , [22] , as there are no special requirements for the physical and chemical properties of levitated samples. It has been used in biomedical analysis [23] , nano-assembly [24] , crystallization [25] , nano-emulsification [26] , and other applications [27] , [28] , [29] , [30] , [31] , [32] , [33] . Typically, ALM may work under a temperature range between −55 and 1727 °C and can levitate droplets with a diameter from 0.2 to 2 mm [34] .…”

Effect of ultrasound and microwave treatment on the level of volatile compounds, total polyphenols, total flavonoids, and isoflavones in soymilk processed with black soybean (Glycine max (L.) Merr.)

“…During the ultrasound treatment, a series of processes repeatedly occur in the liquid medium, including bubble formation, growth, and, eventually, implosive collapse [17] . Cavitation bubbles collapse violently, generating extremely high local pressures and temperatures and micro-jets of liquid that disrupt cell membranes [18] , [19] . This increases the permeability of plant tissue, enhancing solvent penetration into internal plant tissue and the release of its contents [20] .…”