Hello,
I'm looking for information on options for handling human waste that doesn't incorporate the application of human sewerage sludge to land (agricultural fields etc.) as the runoff and other problems (cumulative heavy metal, POP additive effect, virus, vector, and unknown prion factor)pose considerable risk. Any information or studies regarding health or habitat problems and solutions would be greatly appreciated.
Regarding global health and climate change you may want to check out this months issue of Nature and go to the UW Madison at http://www.news.wisc.edu/newsphotos/climateChange.html for some graphics.
Lisa Hustad
Student of Public Health and Global Environmental Change and Disease Risk.
Seeking Sewerage Land Application Alternatives
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Lisa,
Here are several different approaches used here in Aust and in other countries: www.rootzone.com.au www.aquaclarus.com www.biolytix.com Each has domestic, community and commercial application.
Kind regards,
Paul Payten
GEENI - Global Ecology & Educational Networking Interface
...
Lisa The City of Los Angeles uses gasification. Where the dried sewage is heated to a point where it gasifies and then the gas is burned. The waste heat can be used in the drying process and the energy generated can be used to generate electricity, heat buildings or other fixed power plant uses. The technology is over 200 years old and can also absorb yard wastes or any other carbon based wastes which are impractical to compost. Some of the new units can take up to a 50% moisture level.
Richard
Richard Knaub
Community Sustainability Consultant
Boulder CO