Abstract
The interface potential of microparticles in aqueous solution is an important factor for scale formation in a water piping. For application to scale prevention process, the influence of alternating electromagnetic field on the interface potentials of CaCO3 particles in the solution was investigated. Using a suspension of CaCO3 particles dispersed in an electrolytic solution, we measured zeta potential changes of the particles by imposition of weak alternating electromagnetic field at different frequency. Consequently, we found that the specific frequency treatment changes the interface potential of particles drastically with an inversion of its sign. It is considered to be due to the specific adsorption of anions in the solution on the particles interface by the effect of induced electric field.
