Aqueous Solutions is non-profit water, sanitation, and hygiene development organization - - link.. From their website:
"Aqueous Solutions is consortium of research scientists, field engineers, and ecological designers working to promote livelihood security, environmental and economic sustainability, and local self-reliance through ecological design and appropriate technologies in water, sanitation, and hygiene (WASH).
We conduct field and laboratory research on decentralized, small-scale water treatment and ecological sanitation systems. We provide technical consulting and project management services for sustainable WASH infrastructure development in collaboration with rural/remote, indigenous, and politically and economically marginalized communities in SE Asia. And we provide experiential education opportunities for science, engineering, and ecological design students through our intern program."