高等学校化学学报

高等学校化学学报 ›› 2003, Vol. 24 ›› Issue (4): 643.

• 论文 • 上一篇    下一篇

载铁(Ⅲ)-配位体交换棉纤维素吸附剂对饮用水中砷(Ⅴ)和氟联合去除的研究

赵雅萍, 王军锋, 陈甫华   

  1. 南开大学环境科学与工程学院, 天津 300071
  • 收稿日期:2002-04-02 出版日期:2003-04-24 发布日期:2003-04-24
  • 通讯作者: 陈甫华(1936年出生),男,教授,博士生导师,从事水污染和控制研究.E-mail:wangE-maijf@eyou.com E-mail:wangE-maijf@eyou.com
  • 基金资助:

    国家自然科学基金(批准号:29977010);天津市自然科学基金(批准号:993604111)资助

Combined Removal of Arsenic(Ⅴ) and Fluoride from Drinking Water by Fe(Ⅲ)-loading Ligand Exchange Cotton Adsorbent

ZHAO Ya Ping, WANG Jun Feng, CHEN Fu Hua   

  1. College of Environmental Science & Engineering, Nankai University, Tianjin 300071, China
  • Received:2002-04-02 Online:2003-04-24 Published:2003-04-24

PDF (PC)

被引次数

49

摘要： 使用新型载铁(Ⅲ)-配位体交换棉纤维素吸附剂,通过静态和动态吸附实验,研究了饮用水中砷酸钠[砷(Ⅴ)]和氟化钠(氟)联合去除的效果和浓度因素的影响以及吸附剂经过反复吸附-洗脱再生-再吸附后性能的稳定性.结果表明,该吸附剂能够高效、高选择性地联合去除高砷(Ⅴ)和高氟.吸附柱的饱和吸附容量可高达15mg/g干重,反复使用中饱和体积的相对标准偏差小于0.5%,柱处理出水的各项有关指标均符合我国生活饮用水卫生标准,特别是砷(Ⅴ)的质量浓度低于0.010mg/L,符合世界健康组织(WHO)推荐的饮用水严格砷标准.说明该吸附剂在砷氟共存的地区具有很好的应用前景.

关键词: 饮用水, 砷(Ⅴ), 氟, 联合去除, Fe(Ⅲ)LECCA

Abstract: The concentration effects of combined removal of arsenate and fluoride(F) were studied by novel bead Fe(Ⅲ) loading ligand exchange cotton cellulose adsorbent in batch and column experiments. As(Ⅴ) and F could be simultaneously removed by the adsorbent from drinking water highly and selectively after three adsorption regeneration readsorption cycles. The saturation adsorption capacity of As(Ⅴ) and F reached up to 15 mg/g. Indexes of effluent were in good agreement with the living drinking water health standard of China, especially the arsenic concentrations below 0.01 mg/L and satisfy WHO stringent drinking water standards. It shows that the adsorbent may be a promising adsorbent in the region of arsenic and fluoride coexisting.

Key words: Drinking water, Arsenic(Ⅴ), Fluoride, Combined removal, Fe(Ⅲ)LECCA

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