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Operational experiences on small-scale community defluoridation systems
conference contribution
posted on 2018-02-12, 15:08 authored by Bekele Abaire, Feleke Zewge, Messele EndalewExcessive levels of fluoride in drinking water supplies is a major problem in the Rift Valley of Ethiopia.
The methods of fluoride removal used by industrialized countries require more technical support for
operation and maintenance than is possible in the rural areas of developing countries. There is a need
for low cost defluoridation systems in areas with no alternative water sources. This paper describes three
low cost water defluoridation methods that have been evaluated at pilot scale. Three villages with ground
water with high fluoride content and relatively hot climate were considered. Techniques used are
chemical precipitation by aluminium sulphate and lime, adsorption by bone char, and adsorption by clay
minerals. Community support mechanisms that are useful to make such defluoridation systems
sustainable and practical in the Ethiopian context were assessed. We recommend the aluminum sulfate
and lime method to other fluoride affected
areas, while developing further alternative techniques.
History
School
- Architecture, Building and Civil Engineering
Research Unit
- Water, Engineering and Development Centre (WEDC)
Published in
WEDC ConferenceCitation
ABAIRE, B. ... et al, 2009. Operational experiences on small-scale community defluoridation systems.IN: Shaw, R.J. (ed). Water, sanitation and hygiene - Sustainable development and multisectoral approaches: Proceedings of the 34th WEDC International Conference, Addis Ababa, Ethiopia, 18-22 May 2009, 8p.p.Publisher
© WEDC, Loughborough UniversityVersion
- VoR (Version of Record)
Publisher statement
This work is made available according to the conditions of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licence. Full details of this licence are available at: https://creativecommons.org/licenses/by-nc-nd/4.0/Publication date
2009Notes
This is a conference paper.Other identifier
WEDC_ID:11271Language
- en
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