TOILET TOKYO 2017（English）
The Highlight of Our Exhibition
【Night Soil Becomes a Valuable Resource】
When we started the bio-toilet business, there were problems with bad odor, usage restriction, replacement of
sawdust several times a year and environmental hygiene.
~About Odor Treatment~
We made a cooperative research contract with the Agricultural Department of, Shinshu University and we
uncovered the mechanism of odor emission in the treatment tank and microbial treatment of organics.
As a result, we found a bacterial group most suitable for odor treatment and organic microbial treatment.
We also changed the fungus bed from sawdust to buckwheat chaff according to the bacteria.
~About usage restriction solution method~
The balance of temperature, oxygen, and water content is important to maximize the ability of organics to
Temperature and oxygen can be managed automatically by the controller.
The problem is water content (urine).
The urine is evaporated by the heater wrapped around the treatment tank and fermentation heat and
discharged outdoors by the exhaust fan.
Therefore, limited use will occur depending on heater capacity and climate conditions.
Continued use beyond the limit of use will result in a reservoir state, and generation of malodor, replacement
of the bacterial bed is necessary.
Urine can be controlled by automatic management thanks to the development of the western style separate
lavatory basin/night soil separation system/weight sensor system/rainwater lavatory system etc.
By coupling urine tanks together, the use restriction was resolved.
Urine accumulated in the urine tank can be given back to plants as a liquid fertilizer based on safety treatment
and sanitation management with the global ecological sanitization approach. (Resources recycling)
This is, neither flushing nor collection type equipment, the environmentally friendly circulation type/recycling
lavatory employing microbial treatment.
Main Exhibited Products
Equipment for microbial treatment of night soil, toilet paper etc. by microorganisms.
The bacterial bed in the treatment tank is comprised of buckwheat chaff to which aerobic bacteria
(Patent No.4105563) is added at the beginning.
When organic waste is treated with microorganisms, malodorous components can be decomposed.
~Night Soil Separation System~
When the bio toilet is used more frequently than usual like in natural disasters, at events and tourist sites, the
three-way valve spins and only the urine which exceeded the set value will be stored in a dedicated tank
before it exceeds the process capacity of BIO R21.
This keeps the balance of moisture in the treatment tank in the optimum state for microbial treatment.
Any number of tanks can be connected outside.
~Separate Lavatory Basin (Patent No.4515962)~
Western style toilet employing urine separation which separates solid waste and urine.
By putting the separated urine from the center of the treatment tank, the water in the tank is balanced, the
microbial treatment range expands, and the process capacity can be maximized.