Effect of Electromagnetic Fields on Calcium Carbonate Solution Crystallization and Magnetic Memory Effect

Abstract

AbstractThe absorbance values of specific configuration solutions under different magnetic treatment conditions are studied using the UV method based on the circulating dynamic simulation experiment platform for the anti‐scaling of electromagnetics. Additionally, the relationship between the absorbance value and solution concentration is determined. Moreover, the nucleation rate of CaCO3 is calculated using the absorbance value. The influence of the specific magnetic field on nucleating rate is analyzed. Subsequently, the magnetic memory effect and time of CO3−2 and water are studied. Results show that the magnetic treatment changes the nucleation rate of CaCO3 and the critical oversaturation of the solution by acting on CO3−2. This treatment also can promote the dissolution of CaCO3 in water by changing the properties of water. These two aspects all exert memory effects; however, their respective memory times are different. Moreover, the results show that the magnetic treatment can reduce the critical oversaturation of the CaCO3 solution and accelerate the nucleation rate. Furthermore, the memory time of the magnetic field acting on CO3−2 and the properties of water are 45 min and 78 h, respectively.