The Ghana Sustainable Aid Project

New Toilet Technologies
Two technologies, the Microflush Valve and the Biofil Digester, have been engineered into the Microflush-Biofil Toilet, a sensible, hygienic, sanitary, dignified, re-invention of the toilet designed for warm weather environments.



The Microflush Valve (patent pending) is an innovative mechanism that provides a separation of wastes from human space, flushes using as little as 150 cc of water, requires little maintenance, and has all replaceable, durable parts.



The Biofil Digester is a proven technology that mimics the decomposition found on the floors of nature's forests. It's unique design features: the rapid separation of liquids from solids, an efficient aerobic composting of the solids, and a two stage biofiltration of the resulting wastewater.



The Microflush-Biofil Toilet and Facility designs were influenced by sophisticated models developed in the Department of Engineering-Physics-Systems at Providence College. They have been validated in field studies in Ghana. This research has been supported by grants from Providence College and from the Bill & Melinda Gates Foundation under a Grand Challenges Phase I award.



All Microflush-Biofil Facilities are pre- and site- fabricated; they are complete with a day tank for fresh water hand-washing in each stall with the resulting grey water used to flush the toilet.



The hand-washing aerator has no handles (normally the most contaminated part of a toilet facility) and releases just the required amount of fresh water for effective hand washing. Cleaning and maintenance, the cornerstone of sound sanitation practice, is made easy by the tile interior of all Microflush-Biofil facilities.