Record Details

Seeds that clean water

CGSpace

View Archive Info
 
 
Field Value
 
Title Seeds that clean water
 
Creator Technical Centre for Agricultural and Rural Cooperation
 
Description Engineers from the Department of Microbiology at the University of Leicester are testing a prototype water decontamination system using seeds from the tree Moringa oleifera.



This tree popularly called the horseradish tree, is widespread in Africa, India and Indonesia. The seeds contain proteins which make the particles in cloudy and contaminated water coagulate. The coagulated particles then settle, taking with them many of the bacteria and viruses that cause water-borne diseases. This method of purification saves the use of the more usual, but much more expensive, aluminium sulphate, thus saving scarce foreign exchange.



Currently a trial project, funded by the UK's Overseas Development Administration (ODA), to test the prototype plant is being conducted in Malawi. Prior to this, the British team also worked with the Forestry Research Institute of Malawi to establish plantations of 4500 horseradish trees at three differing geographical locations.



Further research is being undertaken to discover more about the biological activity of the protein coagulant, which accounts for around 30-40% of the weight of each seed. It is thought that the protein acts as a 'polyelectrolyte', cross-linking charged particles.



Bill Grant Department of Microbiology University of Leicester



University Road Leicester LE1 7RH, UK
Engineers from the Department of Microbiology at the University of Leicester are testing a prototype water decontamination system using seeds from the tree Moringa oleifera. This tree popularly called the horseradish tree, is widespread in Africa,...
 
Date 2014-10-08T13:41:04Z
2014-10-08T13:41:04Z
1991
 
Type News Item
 
Identifier CTA. 1991. Seeds that clean water. Spore 34. CTA, Wageningen, The Netherlands.
1011-0054
https://hdl.handle.net/10568/45568
 
Language en
 
Relation Spore, Spore 34
 
Publisher CTA
 
Source Spore