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The overall purpose of the MIT Nepal Water Project is to identify new technologies or suggest improvements for existing ones to provide  safe drinking water in Nepal. Appropriateness of different technologies is evaluated, i.e. they are tested against Nepalese economic, social and environmental conditions.

During the academic year 2001-2002, our group investigated seven water treatment technologies and assessed the performance of four on-going implementation programs.

Summaries of the technologies and the programs studied so far are presented in the tables below.

TECHNOLOGIES:

Both porous media filtration and chlorination address the problem of microbial contamination of water, but using different strategies, mainly physical mechanisms for filtration and chemical ones for chlorination. Filtration removes turbidity, too, which is a common problem in surface waters.

Arsenic contamination is a recent problem in Nepal history, but the effect of Arsenic on people health is dramatic. Therefore, efficient and widely applicable solutions are urgently needed.

IMPLEMENTATION PROGRAMS:

Program	Location	Responsible NGO	Purpose
Chlorination Pilot Program	Lumbini	IBS	Introduction of household chlorination in rural villages using a hypochlorite disinfectant
Biosand Pilot Program	Lumbini	IBS	Introduction of household sand filtration in rural villages using Biosand filters.
Hypochlorite Generation Program	Kathmandu	ENPHO	On-site generation of a hypochlorite disinfectant solution.
Tubewell Program	Butwal	DIDC (former FINNIDA)	Installation and maintenance of tubewells in rural villages