活性炭纤维电极的电容去离子脱盐试验研究  

Experimental study on capacitive deionization with activated carbon fiber electrodes

作　　者：李少华[1,2] 潘涌璋[1,2] 

机构地区：[1]暨南大学环境工程系,广州510632 [2]广东省高校水土环境毒害性污染物防治与生物修复重点实验室,广州510632

出　　处：《工业用水与废水》2014年第1期27-32,共6页Industrial Water & Wastewater

摘　　要：以活性炭纤维为电极材料研制液流式电容去离子模块,考察了电压、进水流量、进水浓度对其脱盐性能的影响。结果表明,活性炭纤维电极用于电容去离子脱盐具有吸附效率高、再生性能好的优点。对活性炭纤维进行载钛改性,改性后的电极单位吸附量提高了31.61%。对于电导率为7.31 mS/cm的电镀反渗透浓水,在21级电容去离子模块串联作用下,离子去除率高达95.21%。处理后的电导率与自来水相近,说明以活性炭纤维为电极的电容去离子技术具有广阔的应用前景。A flow-through capacitive deionization cell was developed using activated carbon fiber（ACF） as electrodes, the influences of voltage, influent flow rate and influent water concentration on its desalination performance were investigated. The results showed that, ACF used for capacitive deionization was characterized by high adsorption efficiency and good regenerability. After modified by titanium, the adsorption capacity per unit of the ACF electrode increased by 31.61%, for electroplating RO concentrated water of which the conductivity was 7.31 mS/cm, after dealt with 21-level capacitive deionization cells in series, the removal rate of ions reached 95.21%. The conductivity of the treated water was similar with tap water, technology with ACF as electrodes had broad application prospect.

关 键 词：电容去离子 活性炭纤维 反渗透浓水 载钛改性 

分 类 号：X703.1[环境科学与工程—环境工程] X781.1