urban farm resources

I'm always on the lookout for urban applications of low-impact technologies. City Farmer in Vancouver has a lot of information related to urban agriculture, with a detailed discussion of their compost toilet and information on irrigation using grey water and rain water. Their composting toilet page also has a link to the Biolytix Waste Treatment System that is available in South Africa, New Zealand and Australia. Biolytix uses an aerobic method to break down toilet waste so that the liquids can be used for irrigation, unlike septic tanks where pathogens thrive.