| 饮水除氟剂的试验评估 |
| 摘要点击 1754 全文点击 2772 修订日期：1993-08-16 |
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| 中文关键词 除氟 聚合铝 活性氧化铝 骨炭 饮水 |
| 英文关键词 fluoride removal polyaluminum activated alumina bone carbon drinking water |
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| 中文摘要 |
| 就聚合铝,CF-1和PC85-3除氟的适宜条件,如pH,陈化作用,搅拌等进行了较详细的比较。聚合氯化铝除氟的最佳pH为6-7;水温在10-30℃除氟效果基本相近;搅拌时间以1-3min为宜;沉淀静置10-15min能达到除氟要求。并对活性氧化铝,骨炭和UR-3700螯合树脂除氟的平衡容量,水的硬度影响等进行了试验。结果表明,聚合铝,CF-1和PC85-3去除饮水中的过量氟,可达到饮用要求,但其应用受限制。活性氧化铝,骨炭是比较有效的除氟滤料,活性氧化铝平衡吸氟量为0.89-1.75mg/g,除氟效率与pH、原水含氟量、盐度和硬度有关。 |
| 英文摘要 |
| he optimum conditions for polyaluminum species,CF-1 and PC85-3 to remove fluorides from drinking water,such as pH value,ageing and agitation,were compared in detail and activated alumina,bone carbon and UR-3700 chelate resin were tested for their equilibrium capacity of fluoride removal,the effect of water hardness,etc.The results show that polyaluminum species,CF-1 and PC85-3 removed the excessive fluorides from drinking water to an acceptable level for drinking use but had limited applications.Activated alumina and bone carbon were more effective filters for removing fluorides from drinking water.The optimum pH values for the fluoride removal by polyaluminum species were 6-7.The eficiency of fluoride removal was the same at water temperatures ranged from 10-30℃.The stirring time of 1-3min and agitation time of 10-15 min were satisfatory for fluoride removal from drinking water.The equilibrium capacity of fluoride removal for activated alumina was 0.89-1.75mg/g.The eficiency of fluoride removal was related to pH,concentration of fluoride,salinity and handness. |
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