针对传统电化学软化技术在处理循环冷却水时存在效率欠佳、能耗较高以及受限于水体碱度的问题,设计了一种电解-电吸附耦合软化系统。结果表明,耦合系统在最适工艺参数条件下,总硬度、碱度的去除效率分别达到70.25%、92%,相比单独的电解单元分别提高了9.5%、5%,运行能耗低至5.6 kWh/(kg CaCO₃);耦合系统在长时间的连续运行情况下仍保持着较高的稳定性,活性炭纤维毡(ACF)电极展现出较好的抗结垢性能。因此,通过电解与电吸附的耦合协调作用,可以有效提升基于电化学技术对循环冷却水软化的能力。

Aiming at solving the problems in the treatment of circulating cooling water by traditional electrochemical softening technology,such as poor efficiency,high energy consumption and water alkalinity constrain,a coupled softening system covering electrolysis-electroadsorption is designed.Experimental outcomes reveal that under optimal process parameters,the coupled system achieves the removal efficiencies of 70.25% and 92% for total hardness and alkalinity,respectively,representing improvements of 9.5% and 5% compared to standalone electrolysis units.Furthermore,the operational energy consumption declines to as low as 5.6 kWh/kg CaCO₃.Stability test demonstrates that the coupled system maintains high stability during prolonged continuous operation,and activated carbon fiber felt electrodes exhibits favorable anti-fouling properties.Consequently,the integration between electrolysis and electroadsorption through their coupled and synergistic effects effectively enhances the electrochemical-based softening capability for recirculating cooling water.

周彦好(1997-),男,硕士生,研究方向为电化学除垢,1015792484@qq.com;赵贤广(1968-),男,博士,教授,主要从事化工污染控制新技术的研究与应用,通讯联系人,zxg174@163.com。