Loughborough University
Ghebremichael.pdf (784.07 kB)
Download file

Natural resources for appropriate water treatment

Download (784.07 kB)
conference contribution
posted on 2018-02-12, 15:08 authored by Kebreab Ghebremichael
The high cost of water treatment has rendered provision of good quality water in the developing world difficult. The search for low-cost treatment options is essential in order to provide safe drinking water. This paper presents a study on the use of Moringa oleifera and pumice as low cost natural materials for improving water treatment systems. Moringa oleifera was found to be very effective for coagulating raw turbid water. The coagulant component was isolated from the seed and purified using a single-step ion exchange purification method. The process was standardized and it can be readily scaled up. The use of pumice for dual media filtration was compared against a mono-medium sand filtration system. In a pilot scale study pumice/sand dual media increased the filter run length two-fold and reduced the volume of backwash water by half.



  • Architecture, Building and Civil Engineering

Research Unit

  • Water, Engineering and Development Centre (WEDC)

Published in

WEDC Conference


GHEBREMICHAEL, K., 2006. Natural resources for appropriate water treatment. IN: Fisher, J. (ed). Sustainable development of water resources, water supply and environmental sanitation: Proceedings of the 32nd WEDC International Conference, Colombo, Sri Lanka, 13-17 November 2006, pp. 434-439.


© WEDC, Loughborough University


  • 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



This is a conference paper.

Other identifier



  • en

Usage metrics

    WEDC 32nd International Conference


    No categories selected