The development of bone char-based filters for the removal of flouride from drinking water

Millions of people rely on drinking water that contains excess fluoride. Only few fluoride removal techniques have been implemented on a wider scale in low and middle income countries. One of these methods, bone char filtration, is highly efficient. However, its lifespan is rather limited. This pape...

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Main Authors:	Hillary Korir, K. Mueller, L. Korir, J Kubai, E. Wanja, N. Wanjiku, J. Waweru, Michael J. Mattle, Lars Osterwalder, C. Annette Johnson
Format:	Default Conference proceeding
Published:	2009
Subjects:	untagged
Online Access:	https://hdl.handle.net/2134/31634
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id	rr-article-9585764
record_format	Figshare
spelling	rr-article-95857642009-01-01T00:00:00Z The development of bone char-based filters for the removal of flouride from drinking water Hillary Korir (7218149) K. Mueller (7218152) L. Korir (7218155) J Kubai (7218158) E. Wanja (7218161) N. Wanjiku (7218164) J. Waweru (7218167) Michael J. Mattle (2056039) Lars Osterwalder (7218170) C. Annette Johnson (1264392) untagged Millions of people rely on drinking water that contains excess fluoride. Only few fluoride removal techniques have been implemented on a wider scale in low and middle income countries. One of these methods, bone char filtration, is highly efficient. However, its lifespan is rather limited. This paper presents first laboratory results and field testing of a new fluoride removal technology, based on a combination of bone char and calcium-phosphate pellets. These chemicals are slowly released to the water for fluoride precipitation. Although this method, commonly referred to as contact precipitation is known, the development of such pellets is new. Fixed-bed laboratory experiments show that this mixture of materials can increase filter uptake capacity by a factor of 3 and more. However, to reduce the phosphate concentration in the treated water, the design of full-scale community filters for field testing has to be slightly modified. 2009-01-01T00:00:00Z Text Conference contribution 2134/31634 https://figshare.com/articles/conference_contribution/The_development_of_bone_char-based_filters_for_the_removal_of_flouride_from_drinking_water/9585764 CC BY-NC-ND 4.0
institution	Loughborough University
collection	Figshare
topic	untagged
spellingShingle	untagged Hillary Korir K. Mueller L. Korir J Kubai E. Wanja N. Wanjiku J. Waweru Michael J. Mattle Lars Osterwalder C. Annette Johnson The development of bone char-based filters for the removal of flouride from drinking water
description	Millions of people rely on drinking water that contains excess fluoride. Only few fluoride removal techniques have been implemented on a wider scale in low and middle income countries. One of these methods, bone char filtration, is highly efficient. However, its lifespan is rather limited. This paper presents first laboratory results and field testing of a new fluoride removal technology, based on a combination of bone char and calcium-phosphate pellets. These chemicals are slowly released to the water for fluoride precipitation. Although this method, commonly referred to as contact precipitation is known, the development of such pellets is new. Fixed-bed laboratory experiments show that this mixture of materials can increase filter uptake capacity by a factor of 3 and more. However, to reduce the phosphate concentration in the treated water, the design of full-scale community filters for field testing has to be slightly modified.
format	Default Conference proceeding
author	Hillary Korir K. Mueller L. Korir J Kubai E. Wanja N. Wanjiku J. Waweru Michael J. Mattle Lars Osterwalder C. Annette Johnson
author_facet	Hillary Korir K. Mueller L. Korir J Kubai E. Wanja N. Wanjiku J. Waweru Michael J. Mattle Lars Osterwalder C. Annette Johnson
author_sort	Hillary Korir (7218149)
title	The development of bone char-based filters for the removal of flouride from drinking water
title_short	The development of bone char-based filters for the removal of flouride from drinking water
title_full	The development of bone char-based filters for the removal of flouride from drinking water
title_fullStr	The development of bone char-based filters for the removal of flouride from drinking water
title_full_unstemmed	The development of bone char-based filters for the removal of flouride from drinking water
title_sort	development of bone char-based filters for the removal of flouride from drinking water
publishDate	2009
url	https://hdl.handle.net/2134/31634
_version_	1796737425780768768

The development of bone char-based filters for the removal of flouride from drinking water

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