Bill,
I believe decentralized onsite composting is the answer. Centralized composting as you're attempting is not a sustainable model as it involves transporting the waste, and your composting process also takes too long to render the waste non-pathogenic. Contact me for a completely closed loop system called the Microflush Toilet which has been deployed in over 24 countries and for which I'm seeking representatives throughout North America.
Regards,
Steve
