Characterization of the efficiency of antiscale treatments of water. Part II: Physical processes

The efficiency of physical antiscale treatments of water was evaluated by v arious techniques, such as chronoamperometry, electrochemical impedance and chronoelectrogravimetry. It was found that the antiscale electrolytic trea tment is more efficient than magnetic treatment, at least for the commercia l devices used here, and that it also has a longer tasting effect. The elec trolytic process generates CaCO3 nuclei in suspension in the bulk water, wh ich provokes homogeneous scaling rather than heterogeneous scaling on the w alls which is to be avoided. If the small crystals generated in the bulk ar e eliminated by filtration, surface scaling is again observed.