Tuesday, October 11, 2011

Food for the Poor's Eloo Project - waterless toilets!

From Susan James, Food for the Poor

These photos are of the Eloo toilets that we installed at the
Eccleston Primary School.

Please note that the building will be painted.

This first set is a pilot to see how well these environmentally friendly
toilets function - they do not require running water.

Additional info - HOW ELOO WORKS


The ELOO®, although not a composting toilet, provides the right environment
to treat and stabilize human waste by the natural processes of dehydration
and evaporation. The waste is reduced into an inoffensive and harmless, dry,
ashlike material, which is then disposed of according to local county,
state, and Federal regulations.

The ELOO® operates by separating the liquid and solid waste. This waste is
subjected to ambient heat and directed airflow to achieve the necessary
dehydration and evaporation to convert this waste, with ancillary bacterial
and biological activity, into the dried, ashlike material which is
approximately 5-10% of its original mass (solid waste). The liquid waste
totally evaporates.

The liquid waste drains into the trap area below the solid waste drying
plate (see drawing). By separating the solid and liquid waste, anaerobic
conditions (cause of odor) do not occur. Constant, directed air flow
through the intake pipes, around and over the drying tray, then up through
the evacuation vent pipe facilitates both the dehydration and evaporation of
the waste. The turbine on top of the vent pipe aids in the air flow and
dehydration processes.

Installation of the The ELOO® should be with the back of the unit placed to
collect the most sunlight and heat - the solar window in your hemisphere.
The heat build-up (radiant heat) is absorbed through the UV-protected black
polyethylene plastic of the maintenance cover and vent pipe. The increased
internal temperature causes convective airflow which adds to the airflow
through the intake pipes.

Depending on the climatic conditions where the The ELOO® is installed,
additional solar fans may be added to the unit to increase air flow. Local
state regulations may require a high-water alarm be placed in the ELOO®.
SWSLooT provides a choice of solar or battery alarms, either audio or visual
or both, to meet state and/or county requirements. Testing of the The ELOO®
indicates that the evaporation and dehydration processes continue working
until the interior temperature of the unit reaches a low of 1 degree
farenheit, which means that the Eloo will continue to operate in most
climatic conditions in a very large range of temperatures.

1 comment:

  1. Jean,
    Thank you for featuring news of Food For The Poor's waterless toilets on your blog. We're really excited about this new project, and we really appreciate the support.