Have you seen the Sun Frost composting toilet design?
Posted: Tue Apr 11, 2006 5:01 pm
http://www.sunfrost.com/composting_toilets.html
This design has several similar features and some differences that may be worth discussion. I like the liquid recirculation concept, but am still concerned about the ability to evaporate all urine if a diverter is not used. But perhaps if it does not evap. all liquid, this way the liquid could be removed from the top without cutting a hole in the bottom of the barrel. I talked with the owner and he mentioned that if additional evap. is needed just add flour to enhance the composting temperature.
Although this composting system is illustrated as sitting right on the drum, it is possible to locate the drum directly beneath the toilet, just as the Biorealis toilet.
I am not quite sure how the mixer works, but from my bucket toilet experience, leveling and mixing would be helpful.
I also like that a vented room is not required, each drum is attached to the ventilation system.
The unit is insulated so perhaps that helps enhance the thermophilic composting action.
The asking price for the system is $750 (per phone quote on 4/11/06). During the middle of June I will be able to view the unit at our nearby Midwest Renewable Energy Fair.
What do you think?
This design has several similar features and some differences that may be worth discussion. I like the liquid recirculation concept, but am still concerned about the ability to evaporate all urine if a diverter is not used. But perhaps if it does not evap. all liquid, this way the liquid could be removed from the top without cutting a hole in the bottom of the barrel. I talked with the owner and he mentioned that if additional evap. is needed just add flour to enhance the composting temperature.
Although this composting system is illustrated as sitting right on the drum, it is possible to locate the drum directly beneath the toilet, just as the Biorealis toilet.
I am not quite sure how the mixer works, but from my bucket toilet experience, leveling and mixing would be helpful.
I also like that a vented room is not required, each drum is attached to the ventilation system.
The unit is insulated so perhaps that helps enhance the thermophilic composting action.
The asking price for the system is $750 (per phone quote on 4/11/06). During the middle of June I will be able to view the unit at our nearby Midwest Renewable Energy Fair.
What do you think?