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Practical experiences at 5 slow sand filtration plants in South Africa
conference contributionposted on 2018-02-12, 15:09 authored by Godfrey Mwiinga, Boikanyo Setlhare, C. Swartz
Slow sand filtration (SSF) is an effective physical and biological technology that employs fine sand beds and low filtration rates to treat polluted and contaminated raw water. Its effectiveness lies in the capabilities of the Schmutzdecke (a thin dirty layer formed at the top of the sand bed) to trap suspended solids as water flows through, and to support organisms that kill pathogens. SSF is simple in design and construction and it usually uses locally available labour and materials. The operation and maintenance are simpler than that for high-rate filtration plants. However, in practice SSF do not benefit for the potential advantages. The aim of this paper is to discuss the practical application of experiences of SSF in South Africa. It is based on findings from visits to some SSF plants. These are compared to the theoretical expectations to draw out some learning points.
- Architecture, Building and Civil Engineering
- Water, Engineering and Development Centre (WEDC)
Published inWEDC Conference
CitationMWIINGA, G. ... et al, 2004. Practical experiences at 5 slow sand filtration plants in South Africa. IN: Godfrey, S. (ed). People-centred approaches to water and environmental sanitation: Proceedings of the 30th WEDC International Conference, Vientiane, Laos, 25-29 October 2004, pp. 598-601.
Publisher© WEDC, Loughborough University
- VoR (Version of Record)
Publisher statementThis 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/
NotesThis is a conference paper.