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The Humanure Handbook: Guide to Composting Human Manure
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The Humanure Handbook: Guide to Composting Human Manure

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Answers the perplexing question: If you can't flush it (or don't want to), what CAN you do with it? Learn how to safely recycle human excrement (humanure) without chemicals, technology or environmental pollution.
  • Detailed advice interspersed with humor.
  • By Joseph Jenkins
  • 7" x 9", 302 pp.
Table of Contents
  • The Beginning
  • Crap Happens
  • Waste Not Want Not
  • Microhusbandry
  • Deep Sh*t
  • A Day in the Life of a Turd
  • Composting Toilets and Systems - Worldwide Sources of Composting Toilets
  • Worms and Disease
  • The Tao of Compost
  • Alternative Graywater Systems
  • The End is Near
  • References
  • Appendices
    • Appendix 1: Temperature Conversions
    • Appendix 2: Sources of Wetland Plants
    • Appendix 3: US State Regulations
  • Glossary
  • Index

An Excerpt from Chapter 5

Ground Water Pollution From Septic Systems

We civilized humans started out by defecating into a hole in the ground (outhouse) then discovered we could float our turds out to the hole using water and never have to leave the house. However one of the unfortunate problems with septic systems is like outhouses they pollute our groundwater.

There are currently 22 million septic system sites in the United States serving one fourth to one third of the US population. They are leaching contaminants such as bacteria viruses nitrates phosphates chlorides and organic compounds such as trichloroethylene into the environment. An EPA study of chemicals in septic tanks found toluene, methylene, chloride benzene, chloroform, and other volatile synthetic organic compounds related to home chemical use many of them cancer-causing. Between 820 and 1 460 billion gallons of this contaminated water are discharged per year to our shallowest aquifers. In the US septic tanks are reported as a source of ground water contamination more than any other source. Forty-six states cite septic systems as sources of groundwater pollution; nine of these reported them to be the primary source of groundwater contamination in the state (see Figures 5.9 and 5.10).

The word "septic" comes from the Greek "septikos" which means "to make putrid." Today it still means "causing putrefaction" putrefaction being "the decomposition of organic matter resulting in the formation of foul-smelling products" (see Webster). Septic systems are not designed to destroy human pathogens that may be in the human waste that enters the septic tank. Instead septic systems are designed to collect human wastewater settle out the solids and anaerobically digest them to some extent leaching the effluent into the ground. Therefore septic systems can be highly pathogenic allowing the transmission of disease-causing bacteria viruses protozoa and intestinal parasites through the system.

One of the main concerns associated with septic systems is the problem of human population density. Too many septic systems in any given area will overload the soil's natural purification systems and allow large amounts of wastewater to contaminate the underlying watertable. A density of more than forty household septic systems per square mile will cause an area to become a likely target for subsurface contamination according to the EPA.

Toxic synthetic organic chemicals are commonly released into the environment from septic systems because people dump toxic chemicals down their drains. The chemicals are found in pesticides paint and coating products toilet cleaners drain cleaners disinfectants laundry solvents antifreeze rust proofers septic tank and cesspool cleaners and many other cleaning solutions. In fact over 400,000 gallons of septic tank cleaner liquids containing synthetic organic chemicals were used in one year by the residents of Long Island alone. Furthermore some synthetic organic chemicals can corrode pipes thereby causing heavy metals to enter septic systems.

In many cases people who have septic tanks are forced to connect to sewage lines when the lines are made available to them. A US Supreme Court case in 1992 reviewed a situation whereby town members in New Hampshire had been forced to connect to a sewage line that simply discharged untreated raw sewage into the Connecticut River and had done so for 57 years. Despite the crude method of sewage disposal state law required properties within 100 feet of the town sewer disposal system apparently continued to operate until 1989 when state and federal sewage treatment laws forced a stop to the dumping of raw sewage into the river.

Copyright permission by Chelsea Green Publishing

Customer Reviews of The Humanure Handbook: Guide to Composting Human Manure
Product Rating: 5.0 out of 5.0(3 reviews)
Showing comments 1-3 of 3
- 6/14/2012
said: Travis
"Received this as a gift. Wonderful item full of knowledge. Even if you are not ready to make the changes, excellent read that is full of entertaining and important "know-how" on this topic. After reading this, I refuse to give this book up!"
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- 3/20/2012
said: johanne woodrow
"This is what everybody should do if they are concern about our state of affair regarding the environment. Why dump excrement into good drinking water than spend million of dollars cleaning it. Composting is the solution."
Was this comment helpful? yes no (4 people found this comment helpful, 0 did not)

- 8/19/2009
said: darryl
"excellent book with a ton of crappy knowledge!! fantastic "on the edge of your seat" reading!!"
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Showing comments 1-3 of 3