Fluoride Contamination in Drinking Water in the Rift Valley, Kenya and Evaluation of the Efficiency of a Locally Manufactured Defluoridation Filter
Fluoride Contamination in Drinking Water in the Rift Valley, Kenya and Evaluation of the Efficiency of a Locally Manufactured Defluoridation Filter
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肯尼亚东非大裂谷饮用水中的氟化物污染及本地制造的除氟过滤器的效率评估
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
T. Bailey
中科院分区：
文献类型：
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作者：
E. N. Nyanchaga;T. Bailey
对Njoro区、纳库鲁区和该地区以外的一些地区的地下水、饮用水中的氟化物含量进行了调查，以确定居民通过水消费的氟化物浓度。该地区位于东非大裂谷，由于数千年前发生的火山爆发，该地区的水中负离子含量很高。从18个来源收集水样，并使用离子选择性电极（伊势）进行分析。浓度水平范围从0.78 mg/L（河水）到11 mg/L（钻孔水）。评价了当地生产的由烧焦的骨颗粒制成的除氟剂从水中去除F-的能力。除氟剂对氟离子的去除率一般在99%以上。除了去除目标阴离子F-外，一些金属阳离子也被不同程度地去除，而另一些金属阳离子则显然是通过浸出从骨炭中加入水中的。
（土木工程杂志，JKUAT：2002 8：79-88）
A survey of the amount of Fluoride in ground, potable water in Njoro division, Nakuru district and some parts outside the division was conducted to determine the concentration of Fluoride the residents are consuming through water. This area is situated in the Great Rift Valley of East Africa, which is known to have high levels of the anion in the water due to the volcanic eruptions that occurred thousands of years ago. Water samples were collected from 18 sources and analysis was performed using an ion selective electrode (ISE). Concentration levels ranged from 0.78 mg/L (river water) to 11 mg/L (borehole water). A locally manufactured de-fluoridizer made of charred bone particles was evaluated for its ability to remove F- from water. Generally, more than 99% F- was removed by the de-fluoridizer. Apart from removing the target anion, F-, some metal cations are also removed at various extents, while others are added into the water apparently from the bone char through leaching.
(Journal of Civil Engineering, JKUAT: 2002 8: 79-88)