Ever wanted to create your own composting toilet, backyard anaerobic digester or small scale organic waste water treatment system?
Biorealis Systems Inc., ("...an Alaskan professional corporation providing R&D, ecological engineering, and energy management consulting services, with particular emphasis on the practical application of small scale appropriate technologies and designs which emulate natural biological systems."), has designs on its webpage outlining how to create your own composting toilet, anaerobic digester, or waste water treatment facility?
This site is an invaluable resource for the do-it yourself guru, interested in designing a small-scale home-based system for dealing with their own excrement and organic waste. Founded in 1984 by Robert L. Crosby Jr., Biorealis Systems Inc. aims to freely distribute information on how to build small-scale, low-cost and reliable ecological products in the hopes that large numbers of people will purchase (or build) and these ecological products in their own economic self-interest. I would highly recommend that all treehuggers go and take a look
Shown here is a design for a backyard anaerobic digester. The site also provides a design calculator that enables users to approximate methane production so that they can determine the appropriate sized system for their locality.