[1]刘雪峰,胡文,武钰,等.摇椅式电容去离子技术处理电厂循环冷却水的效能[J].中国给水排水,2026,42(17):105-110.
　LiuXuefeng,HuWen,WuYu,et al.Efficacy of Rocking-chair Capacitive Deionization Technology for Treating Circulating Cooling Water in Power Plants[J].China Water & Wastewater,2026,42(17):105-110.
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摇椅式电容去离子技术处理电厂循环冷却水的效能

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第42卷 期数: 2026年第17期 页码: 105-110 栏目: 出版日期: 2026-09-01
Title:
Efficacy of Rocking-chair Capacitive Deionization Technology for Treating Circulating Cooling Water in Power Plants
作者:
刘雪峰1， 胡文1， 武钰1， 许霞1， 沈敏2
（1.常州大学 城市建设学院，江苏 常州 213164；2.江苏美淼环保科技有限公司，江苏 常州 213164）
Author(s):
Liu　Xuefeng1， Hu　Wen1， Wu　Yu1， Xu　Xia1， Shen　Min2
（1. School of Urban Construction， Changzhou University， Changzhou 213164， China； 2. Jiangsu Maymuse Environmental Protection Technology Co. Ltd.， Changzhou 213164， China）
关键词:
摇椅式电容去离子技术;  电厂循环冷却水;  连续脱盐;  钙、镁离子
Keywords:
rocking-chair capacitive deionization technology;  circulating cooling water in power plant;  continuous desalination;  calcium and magnesium ions
摘要:
针对传统方法处理燃煤电厂循环冷却水过程中存在的高能耗、低效率及易结垢等问题，本研究提出采用摇椅式电容去离子（RCDI）技术对该类冷却水进行处理，并通过试验考察电压与进水流量对脱盐性能的影响，验证该技术的阻垢效果。结果表明，在电压为1.8 V、进水流量为100 mL/min、进水电导率为16 000 μS/cm的条件下，RCDI系统的除盐率可达到82.1%，电荷效率为84.3%；以正接电源5 min、反接电源1 min作为一个运行周期，在电压为1.8 V、进水流量为100 mL/min、运行时间为120 h的条件下，RCDI反应器内膜组件表面未发现明显结垢现象。进一步在燃煤电厂开展为期51 d的中试应用研究，第47天的监测数据显示，在进水流量为100 m3/h、平均单模块运行电压为1.8 V、进水电导率为1 400 μS/cm、产水率为75%的条件下，RCDI系统的除盐率可达到83.3%。在连续多天的处理过程中，该技术表现出良好的脱盐稳定性，可满足循环冷却水连续、高效处理的需求，具备一定的工程化应用潜力。
Abstract:
To address the issues of high energy consumption, low efficiency, and scaling tendency associated with conventional treatment methods for circulating cooling water in coal-fired power plants, this study proposed the application of rocking-chair capacitive deionization (RCDI) technology for the treatment of such cooling water. The effects of voltage and influent flow rate on desalination performance were systematically investigated through laboratory experiments, and the scale inhibition performance of the technology was verified. The results showed that under the conditions of voltage of 1.8 V, influent flow rate of 100 mL/min, and influent conductivity of 16 000 μS/cm, the RCDI system achieved salt removal rate of 82.1% and charge efficiency of 84.3%. With a cycle of 5 min forward polarization followed by 1 min reverse polarization, no obvious scaling was observed on the membrane module surfaces inside the RCDI reactor after 120 h of operation at 1.8 V and 100 mL/min. Furthermore, a 51-day pilot-scale application study was conducted in a coal-fired power plant. Monitoring data on the 47th day showed that under the conditions of influent flow rate of 100 m3/h, average single-module operating voltage of 1.8 V, influent conductivity of 1 400 μS/cm, and water recovery rate of 75%, the RCDI system achieved salt removal rate of 83.3%. During continuous operation over multiple days, the technology demonstrated good desalination stability, meeting the requirements for continuous and efficient treatment of circulating cooling water, and exhibiting certain potential for engineering application.
更新日期/Last Update: 2026-09-01