Effect of Rotating-Electromagnetic Field on Scaling in Hard Water

Abstract

The electromagnetic heating device based on the heat effect of secondary current and vortex hysteresis effect of magnetic materials was built for treating scaling waters. Water was circulated at a constant flow rate in the device. The effects of magnetic treatment for calcium carbonate crystallization were investigated. It was found that a series of changes have taken place in water’s physico-chemical characters after it was handled by electromagnetic field and the scale is aragonite. The mechanism of preventing and removing scale through magnetic treatment was also investigated.