| 引用本文: | 温沁雪,杨虹,张慧超,陈志强.活性炭粉末电极电容除盐与膜电容除盐对比[J].哈尔滨工业大学学报,2014,46(6):55.DOI:10.11918/j.issn.0367-6234.2014.06.011 |
| WEN Qinxue,YANG Hong,ZHANG Huichao,CHEN Zhiqiang.A comparative study on capacitive deionization and membrane capacitive deionization with powdered activate carbon as electrodes[J].Journal of Harbin Institute of Technology,2014,46(6):55.DOI:10.11918/j.issn.0367-6234.2014.06.011 |
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| 摘要: |
| 为研究电容法除盐技术(CDI)与膜电容法除盐技术(MCDI)除盐效果的差异,获得具有较优除盐特性的电除盐体系,选用成本较低的活性碳粉末作为电容法除盐体系的电极材料,研究CDI与MCDI对不同质量浓度盐水的处理效果．结果表明,随着处理盐溶液质量浓度的提高,CDI与MCDI的电吸附量均有提高,且MCDI电吸附效果的优势更为明显. 当盐水质量浓度由0.05 g／L上升到0.5 g／L时,MCDI的电吸附量由99.4 μmol／g升至694.4 μmol／g,而CDI的电吸附量仅由80.3 μmol／g变化至135.7 μmol／g． |
| 关键词: 电容法除盐 膜电容法除盐 电吸附量 电吸附速率 |
| DOI：10.11918/j.issn.0367-6234.2014.06.011 |
| 分类号:P747.99 |
| 基金项目:城市水资源与水环境国家重点实验室(哈尔滨工业大学)自主课题(2012TS02). |
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| A comparative study on capacitive deionization and membrane capacitive deionization with powdered activate carbon as electrodes |
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WEN Qinxue, YANG Hong, ZHANG Huichao, CHEN Zhiqiang
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(State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, 150090 Harbin, China)
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| Abstract: |
| To get an effective electric desalination system, the electrosorption performance of a capactive deionization(CDI) and a membrane capactive deionization(MCDI) was compared. The electrosorption capacity and electrosorption rate of CDI and MCDI with different salt concentrations were studied when powdered activated carbon was used as the electrode material. The results showed that as the salt concentration increased from 0.05 to 0.5 g／L, the electrosorption capacity of MCDI increased dramatically from 99.4 to 694.4 mol／g, while the electrosorption capacity of CDI just increased from 80.3 to 135.7 μmol／g. |
| Key words: capacitive deionization membrane capacitive deionization electrosorption capacity elctrosorption rate concentration |
