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为解决我国高氟区农村和小城镇居民饮用水氟超标的问题,提供开发高效实用的小型高氟饮用水处理装置的技术参数,采用静态震荡方式以及氟离子选择电极法研究了吸附剂——人造沸石的NH4Cl-FeCl3和NH4Cl-KAl(SO4)2改性方法。结果表明,人造沸石经质量分数分别为3%的氯化铵溶液活化,和5%的氯化铁溶液或4%的硫酸铝钾溶液改性后除氟效果最佳,可使氟离子质量浓度为20～100 mg·L-1的高氟水在8～12 h内达到GB 5749-2006要求。人造沸石NH4Cl-KAl(SO4)2改性方法优于NH4Cl-FeCl3。方法操作简单、成本较低、易于推广。
In order to solve the problem of excessive fluorine in drinking water in rural areas and small towns in China, and to provide the technical parameters for developing a high-efficiency and practical small-size high-fluorine drinking water treatment device, the static oscillating mode and fluoride ion- Modification Methods of Artificial Zeolite NH4Cl-FeCl3 and NH4Cl-KAl (SO4) 2. The results showed that the artificial zeolite activated by 3% ammonium chloride solution and 5% ferric chloride solution or 4% potassium aluminum sulfate solution was the best fluoride removal, the fluoride ion concentration The high-fluorine water with 20-100 mg · L-1 reached GB 5749-2006 within 8-12 h. The modified method of artificial zeolite NH4Cl-KAl (SO4) 2 is superior to NH4Cl-FeCl3. Method is simple, low cost, easy to promote.