Celebrating World Toilet Day, reinventing sanitation
11/17/15 — United Nations World Toilet Day on Nov. 19 is environmental engineering doctoral student William Tarpeh's main chance - a time to proselytize about all things sanitation. For mechanical engineering grad student Emily Woods, it's a boost for Sanivation, the company she co-founded to convert human feces into charcoal for a poor community in Kenya.















