Annals of Tropical Medicine and Public Health
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ORIGINAL ARTICLE
Year : 2008  |  Volume : 1  |  Issue : 2  |  Page : 56-58

Defluoridation of water by a one step modification of the Nalgonda technique


Kamineni Institute of Medical Sciences, Sreepuram, Narketpally, Nalgonda 508 254, Andhra Pradesh, India

Correspondence Address:
Pragna Rao
Kamineni Institute of Medical Sciences, Sreepuram, Narketpally, Nalgonda 508 254, Andhra Pradesh
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/1755-6783.50685

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Defluoridation of water by the Nalgonda technique is a commonly used household process in areas of endemic fluorosis in villages around Nalgonda (Andhra Pradesh, India). The aim of this paper was to modify the existing well-known procedure minimally and without much change in the cost to bring about a greater removal of fluoride. By doubling the concentrations of alum and lime, water fluoride levels fell significantly (p<0.001) in tap water and drinking water while pH levels and other inorganic factors remained unaffected.


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