PLANTS - Sustainable and inexpensive drinking water using just seeds and sand? Miracle Tree Seeds and Sand Produce Inexpensive Clean Water

Moringa oleifera, was able to clean water,sing an extract of the Moringa seed (containing the positively charged protein) to bind to sediment and kill microbes, in conjunction with negatively charged sand, they were able to produce potable and storable water without expensive or complicated technology. ‘functionalized,’ or ‘f-sand,’ proved effective in capturing lab-grown E. coli and damaging their membranes. The f-sand was also able to remove sediment from water samples.
http://www.treehugger.com/clean-water/miracle-tree-seeds-help-produce-inexpensive-clean-water.html