Jan Teun Visscher
IRC's slow sand filtration project
Multi-stage surface water treatment for community water supply in Colombia
Using a multi-barrier treatment for drinking-water greatly increases the potential of slow sand filters. Gerardo Galvis, Jan teun Visscher, and Barry Lloyd describe how this treatment process contributes to a remarkable overall improvement in water quality.
Out of the mouths of babes: an honest evaluation of water and sanitation in Ecuador
Children should be seen and not heard? Not according to one team trying to get a clear picture of water and sanitation practices in the far-flung highland communities of Ecuador.