化工学报2025，Vol.76Issue(4)：1788-1799,12.DOI:10.11949/0438-1157.20240831
电化学水软化过程中离子输运与成核机理研究
Study on ion transport and nucleation mechanism in electrochemical water softening process
摘要
Abstract
Electrochemical water softening is a new type of green industrial circulating water scale inhibition technology.In response to the problem that parallel-arranged pole plates cannot effectively utilise OH-and thus lead to low softening efficiency,an improved pole plate arrangement based on the simulation of the relative motion of circulating water and hydrogen bubbles is proposed.The passive diffusion of OH-forms a long-term and effective alkaline area,which improves the utilization rate of OH-and promotes the uniform nucleation of CaCO3 crystals in the solution.The results showed that Ca2+in the simulated circulating water was nucleated before reaching the cathode plate,and the number of CaCO3 crystal particles was stable and the maximum size was up to 25 μm at 120 min,and the softening efficiency was up to 108.2 g/(m2·h)at the current density of 120 A/m2,the flow rate of the water inlet of 12 L/h,and the initial hardness of 500 mg/L,and the cathode and anode center spacing of 61.5 mm.In this study,the use of air bubble movement and water flow regulation provides an innovative idea for electrochemical circulating water softening.关键词
电化学/水软化/碱性区域/离子扩散/成核/PIVKey words
electrochemistry/water softening/alkaline region/ion diffusion/nucleation/PIV分类
化学化工引用本文复制引用
林纬,杜建,姚晨,朱家豪,汪威,郑小涛,徐建民,喻九阳..电化学水软化过程中离子输运与成核机理研究[J].化工学报,2025,76(4):1788-1799,12.基金项目
武汉工程大学研究生教育创新基金项目(CX203241) （CX203241）
