文献类型： 会议论文

第一作者： Wu Xuehui

作者： Wu Xuehui ¹ ; Li Li ² ;

作者机构： 1.Food CollegeSouth China Agriculture University (SCAU)Guangzhou, China

2.Research Institute of Agro-food Science & Technology Guangxi Academy of Agricultural Sciences Nanning, China

关键词： magnetic ion exchange resins;external magnetic field;calcium ion and magnesium ion;softening

会议名称： International Conference on Bioinformatics and Biomedical Engineering (iCBBE 2011)

主办单位：

页码： 3734-3737

摘要： Water is absolutely necessary in both daily life and industrial production. The content of Ca~(2+) and Mg~(2+) in water is of great significance to human health and the industrial application. This paper gived a research on strengthening of external magnetic field to softening hard water using magnetic ion exchange resin, and the exchange dynamic was also studied. The result showed that when pH of water was 6.0 and current velocity was 2VB/h, the removal rate of Ca~(2+)and Mg~(2+) using magnetic ion exchange resin reached the maximum. External magnetic field could significantly increase the exchange capacity of resin. The removal rate of Ca~(2+) and Mg~(2+)was over 90% when the magnetic field intensity was 160KA/m and treatment time of operating velocity was 30min.The exchange mechanism of removal of Ca~(2+) and Mg~(2+) in hard water using magnetic cationic exchange resin was membrane diffusion. The model of exchange dynamic was F(t) = 1-exp(-0.0104t).Effect of magnetic ion exchange resin on softening hard water was good, which would have wide application prospect.

分类号： G202-53