基于活性炭纤维电极的无膜电去离子装置性能研究

发布时间：2018-05-05 03:24

本文选题：脱盐 + 无膜电去离子　；参考：《水处理技术》2017年09期

【摘要】：选用活性炭纤维作为电极材料,混合床树脂为离子交换剂,搭建一种无膜电去离子装置,探究树脂层高度、再生电压、再生流量对其性能的影响,并对装置的能耗、稳定性及电极的选择进行分析。结果表明,活性炭纤维电极应用于无膜电去离子装置提升了装置的吸附性能及再生性能,具有显著的优越性且电极性能稳定。无膜电去离子装置在树脂高度5 cm、再生电压250 V、再生体积流量45 m L/min的条件下运行较为适宜。550A-D113的混合离子交换树脂稳定性能良好,多个循环周期内未观察到树脂的颜色变化及阴阳树脂的分层现象,出水水质仍保持良好。经显微镜观察,虽长期使用后树脂表面形态有一定变化,但仍能满足装置运行使用需求。
[Abstract]:Using activated carbon fiber as electrode material and mixed bed resin as ion exchange agent, a membrane free electric deionization device was built to explore the influence of resin layer height, regeneration voltage and regeneration flow rate on its performance, and on the energy consumption of the device. Stability and electrode selection were analyzed. The results show that the application of activated carbon fiber electrode in the electrodeionization device without membrane can improve the adsorption and regeneration performance of the device, and has obvious advantages and stable electrode performance. Under the conditions of resin height of 5 cm, regeneration voltage of 250V and regenerative volume flow rate of 45 m L/min, the electrodeionization device without membrane is suitable for the stability of the mixed ion-exchange resin with .550A-D113. The color change of resin and the delamination of anion resin were not observed in many cycles, and the quality of effluent was still good. The results of microscope show that the surface morphology of the resin can still meet the requirement of operation although it has been used for a long time.
【作者单位】：重庆大学三峡库区生态环境教育部重点实验室;低碳绿色建筑国际联合研究中心;
【基金】：国家自然科学基金项目(51308563) 2014年中央高校基本科研业务费(106112014CDJZR210004) 重庆大学大型仪器基金(201406150031) 国家级大学生创新训练项目(0903005109111/002/001/021)
【分类号】：TQ028.33

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