This document discusses composting toilets as a feasible alternative to traditional sewage systems. Composting toilets take human waste and turn it into nutrient-rich fertilizer through an aerobic composting process, preventing pollution from waste products and conserving water by not requiring flushing. Proper management of the compost pile through aeration, maintaining the right carbon to nitrogen ratio, size, and moisture level results in safe and effective waste treatment that produces a end product suitable for use as fertilizer.

1. A Feasible Alternative Simple Composting Toilets Engineering 308 Heather Weiche & Jeremy Battles

2. Composting toilets take human waste and turn it into a nutrient rich fertilizer.

3. Reasons for using a composting toiletWith a composting toilet we have an intact system. No pollution from our waste products.

4. Prevent sewage run offinto water ways.Conserving waterNo need for chemicalfertilizers

5. Management (Source: Sustainable sanitation on flickr.com)

6. Aeration More is better! Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC170689/pdf/aem00013-0145.pdf

7. Hand-crank turns pile for aeration

8. Carbon/Nitrogen Ratio (1:25 optimal)

9. Size >

10. Moisture Hand pump re-circulates fluid from the bottom.

11. Applications (HSU) CCAT Box Duchamp de Loo

12. Applications (Commercial) Sun Mar Phoenix Biolet

13. Book References The Humanure Handbook: A guide to composting human manure. By Joseph Jenkins The Toilet Papers: Recycling Waste and Conserving Water. By Sim Van derRyn