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Low-cost defluoridation of water using broken bricks

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conference contribution
posted on 12.02.2018, 15:09 by T. Wijesundara
A low cost domestic defluoridator has been developed by the National Water Supply & Drainage Board of Sri Lanka to remove excess fluoride in drinking water to avoid endemic Fluorosis. Broken pieces of freshly burnt bricks are used as filter media in these units. A kinetic model for fluoride uptake in the filter with broken bricks as defluoridating agent is considered and the model parameters are estimated using experimental data. Data concerning the uptake of fluoride on broken brick pieces are obtained from water in batch in the defluoridator. The reaction rate parameter, k, and the capacity parameter fm are estimated and the model fits the collected data satisfactorily. fm is estimated to 0.10 mg/g and k which is a function of initial concentration varies between 0.001 and 0.0005 L/ (mg.ho.5) for low and high initial concentration. Broken bricks could be used as filter media for concentration of fluoride in raw water around 2 mg/1.

History

School

  • Architecture, Building and Civil Engineering

Research Unit

  • Water, Engineering and Development Centre (WEDC)

Published in

WEDC Conference

Citation

WIJESUNDARA, T., 2004. Low-cost defluoridation of water using broken bricks. 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. 521-525.

Publisher

© WEDC, Loughborough University

Version

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

2004

Notes

This is a conference paper.

Other identifier

WEDC_ID:12164

Language

en

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