环境工程学报2024，Vol.18Issue(1)：63-70,8.DOI:10.12030/j.cjee.202308042
多级串联膜电容去离子装置的脱盐性能
Membrane capacitive deionization technology with multi-stage series connection for brine treatment
摘要
Abstract
Membrane capacitive deionization(MCDI)technology has the advantages of simple device,easy operation,easy regeneration,low cost,no pollution,energy saving and so on,which makes it a new desalination technology.In order to improve the desalination performance of MCDI,the water influent of multiple devices was connected in series,and each device was charged separately to explore the influence of its salt removal efficiency(SRE),average salt removal rate(ASRR),energy normalization removal salt(ENRS),and other indicators on the multi-stage series connection.The results showed that under different operating conditions such as influent salt concentration,hydraulic retention time,and voltage,the desalination rate of the second and third stage MCDI series increased by about 2 to 3 times.The desalination rate of the third stage series was slightly improved compared to the second stage series,but it had higher energy consumption.Overall comparison,the desalination performance of the two-stage MCDI series connection was better,and the optimal operating conditions were obtained at 1.5 g·L-1,0.375 min,1.2 V.In the continuous desalination process,multi-stage series connection can continuously and stably remove salt ions,and has a high adsorption capacity,indicating the feasibility of continuous desalination.The research results have a guiding significance for the desalination engineering application of multi-stage MCDI.关键词
膜电容去离子/多级串联/脱盐性能/参数优化/连续脱盐Key words
membrane capacitive deionization/multi-stage series connection/desalination performance/parameter optimization/continuous desalination分类
资源环境引用本文复制引用
陈瑞程,谷佳蓉,余铭浩,马俊俊,牛建瑞,李耘科,刘春..多级串联膜电容去离子装置的脱盐性能[J].环境工程学报,2024,18(1):63-70,8.基金项目
国家重点实验室专项基金课题(22K05ESPCT) （22K05ESPCT）
河北省高等学校科学技术研究项目(QN2022038) （QN2022038）
