Building on prior filtration studies, the filtration portion of the Nepal Project
in 2002 aims to develop or discover a filtration system that successfully removes
pathogens (bacteria, protozoan parasites, viruses), has an adequate flow rate,
and is appropriate for point-of-use drinking water treatment in Nepal. An appropriate
technology is simple, economically sustainable, socially acceptable, and uses
local resources. Its function must be understood and accepted by community members,
and its importance obvious (i.e. cleaner water). (Murcott, 1999) Specific Biosand
filter variables will be examined in greater detail while preliminary studies
of the Terafil Terracotta and Thimi Terracotta filters will be preformed in
this new work to determine whether these filters should be recommended for widespread
use in Nepal.
 Colloidal Silver is a disinfectant painted on ceramic filters made by Potters
an international aid organization based in Nicaragua directed by Ron Rivera.
 In 2000, this purifying system was known as the Industry for the Poor filter
created for use in Haiti by Phil Warwick.