This Sanitation System is a waterless, dehydration / evaporation
system that provides a safe, non-polluting and cost effective
solution to the worldwide sanitation problem. It offers a standard
of respectability and convenience, comparable to a waterborne
system, yet without the prohibitive costs and obvious strain
on precious water resources.
system has been tried, tested and evaluated in the field since
1997. The evaluation period involved scientific, health as well
as community tests and feedback. Widespread experience with
the system in South Africa and neighboring countries has demonstrated
that it is a cost-effective, respectable, hygienic and environmentally
friendly system that satisfies the dignity of all users.
Toilet's main features are:
*Relatively lightweight and easy to move into position during
*The unit does not require any type of flushing mechanism, eliminating
the risk of mechanical failure.
*It uses no water, so no plumbing is required.
*It has no sewer connections.
*It is ideally suited for both city, rural and bush homes.
*It has a modern and functional design and is easily transportable.
*It uses no chemicals.
*It is a sanitation system that does not require any water to
function. Not only does it save on water use, but also it is
entirely isolated from the surrounding environment and cannot
contaminate underground water resources.
*The system utilizes a natural biological process to break down
human waste into a dehydrated odorless compost-like material.
(1) The human waste falls down a vertical chute and into one
end of a specially designed helical screw conveyor.
(2) Every time the toilet lid is lifted, a mechanism rotates
the conveyor. with each rotation the human waste slowly moves
along, taking approximately twenty-five days before falling
into a reusable collection bag
(3) It takes six months for the bag to fill with dry and odorless
waste, through a uniquely designed ventilation pipe
(4) Adequate airflow is provided for the dehydration/evaporation,
(5) Human waste consists of roughly 95% moisture and as the
solids dry in the conveyer, the urine and moisture is vented
into the atmosphere - the solid waste then dries into a compost-like
material, roughly 5 - 10% of its original mass.
The dry waste is manageable and can be processed in the following
Use it in the making of compost
Dispose of it by using municipal waste services
Use it as a source of fuel
Large objects like beverage cans, disposable nappies or other
objects accidentally dropped down the chute will not block the
system, it is however not advisable to do this
Length - 2450 mm
Width - 630 mm
Height - 750 mm above floor level (toilet bowl)
Height of catchment drum at back - 1120 mm
Material LDPE - Low Density Poly-Ethylene
Weight 90 Kg's
Due to the design and the non-stick surface of the chute, the
human waste falls directly into the processing drum and into
the area where the air is extracted.
As with any other toilet system, periodic cleaning of the bowl
The system is designed so that all odors are extracted through
the bowl, processing drum and then out via the extractor pipe
Three air ventilation systems are available, a wind turbine,
solar powered D.C. fan and an A.C. fan.
The system was designed to handle normal amounts of urine, in
fact it assists with the removal of odors due to the additional
ventilation it causes because of evaporation.
A little bit of water in the system will not cause it to malfunction,
it will help in the ventilation/ evaporation process.
Because the whole process is a dry process there, is no need
for a septic tank, temporary storage takes place inside the
processing drum until the waste is dropped into the removal
No special maintenance of the toilet system is required.
As with all other toilets it is recommended that the bowl be
cleaned regularly with a soft brush and some soap or toilet
The toilets are designed for a family of 6 to 10 people.
No special detergent are needed to keep the toilet clean, a
bit of liquid soap or disinfectant and water is enough.
This sanitation system is sensitive to the requirements on most