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29 minutes
Grades 9-Adult
Produced by Hans Ernst-Weitzel
The construction and maintenance of centralized wastewater
treatment plants use up enormous amounts of money, energy, raw
materials and fresh water, and it's still not possible to
purify the wastewater properly. For his home near Lake
Geneva, physicist Pierre Lehmann has designed a composting
toilet, and cleanses his wastewater in a pond where water
plants and billions of microbes remove impurities.
Awards: 2nd Place, German Ministry of Economics Film Festival
- "Students can see sound biological practices in action as
well as a family practicing their strong environmental ethic -
essential for a home disposal system to operate successfully."
Science Books & Films
WASTEWATER, TOILET, BIOLOGY, ENVIRONEMNT, SCIENCE
ISBN: 1-56029-574-0
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Box 149, Oley PA 19547
(610) 779-8226
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