Novel applications of non Hofmeister ion specificity in bubble interactions
Date
2016-06
Authors
Xue, Xinkai
Pashley, Richard M.
Ninham, Barry W.
Journal Title
Journal ISSN
Volume Title
Publisher
Elsevier
Abstract
The ion specificity of bubble-bubble interactions in water remains unexplained. Whatever their valence all ion
pairs either completely inhibit bubble coalescence or have no effect whatever. The phenomenon appears unrelated
to Hofmeister specificity. Salts which inhibit coalescence enable the formation of a high density bubble column
evaporator (BCE). If hot gas bubbles are injected into the bubble column evaporator at a significantly higher
temperature than the water, the hot bubble surfaces can be used to produce thermal effects in dissolved and dispersed
solutes. These two properties can be exploited for a wide range of applications. Among these, high temperature
aqueous reactions catalyzed at low solution temperatures, measurement of enthalpies of vaporization of
concentrated salt solutions, wastewater treatments by sterilization and de-watering and desalination are a few.
Description
Keywords
Hofmeister effects, Bubble column evaporator, Specific ions, Cations, Multivalent ions, Water treatment
Citation
Collections
Source
Current Opinion in Colloid & Interface Science
Type
Journal article
Book Title
Entity type
Access Statement
Open Access