摘要：
针对一种新型磁性阴离子交换树脂(MIEX®)的再生工艺进行优化研究。探讨了不同再生方式对MIEX®性能恢复的影响,在最佳再生方式基础上,研究了再生液浓度及流量与MIEX®再生效果之间的关系,以及MIEX®的可再生次数。试验结果表明:MIEX®再生方式中以动态逆流再生效果最好,最佳再生液为质量分数10%的NaCl溶液,最佳流量为15 mL/min。随着再生次数不断增加,MIEX®处理效果小幅下降,当再生次数达到25次时,MIEX®性能明显下降,难以有效再生。
关键词:
磁性阴离子交换树脂,
再生工艺,
饮用水处理
Abstract:
The research on the regeneration process optimization of a novel type of magnetic anion exchange resin (MIEX®) has been carried on. The effects of different regeneration methods on the recovery of perforperformance of MIEX® are discussed. Based on the best regeneration method,the relationship between the concentration & flow rate of regeneration liquid and the regeneration effect of MIEX®,as well as the renewable times of MIEX® is studied. The experiment results show that among the MIEX® regeneration methods,the dynamic countercurrent regeneration effect is the best. The optimum regeneration liquid is mass fraction of 10% of NaCl solution,and the optimum flow rate of the liquid is 15 mL/min. It is also found that along with the increase of regeneration times,the treatment effect of MIEX® is declined slightly. When the regeneration times reach 25 times,the performance of MIEX® decreases significantly,and is difficult to regenerate effectively.
Key words:
magnetic anion exchange resin,
regeneration process,
drinking water treatment
中图分类号:
王冠宁, 王亮, 张朝晖, 杨晓明, 董冰洁, 陈倩倩. 磁性阴离子交换树脂(MIEX®)再生工艺的研究[J]. 工业水处理, 2015, 35(8): 37-41.
Wang Guanning, Wang Liang, Zhang Zhaohui, Yang Xiaoming, Dong Bingjie, Chen Qianqian. Research on the regeneration process of magnetic anion exchange resin (MIEX®)[J]. INDUSTRIAL WATER TREATMENT, 2015, 35(8): 37-41.