Michael Lea

Biological sand filters, a low-cost household bioremediation intervention, are capable of dramatically improving the microbiological quality of drinking water. This research paper describes this relatively new, though proven bioremediation technology's ability to empower at-risk populations to use naturally occurring biology and readily available materials as a sustainable way to achieve the health benefits of safe drinking water.

This research paper describes an indigenous water treatment method, that uses Moringa oleifera (Drumstick) seeds in the form of a water-soluble extract in suspension, resulting in an effective natural clarification agent for highly turbid and untreated pathogenic surface water.