Skip to content
Pulse of the Planet
Radio Stations
Pulse Picks
The Pantanal
Annapurna
Casa de la Trova
Cajun Mardi Gras
Singing Up the Sun
About Us
Contact Us
ECOLOGICAL ENGINEERING – Biological Filters
ECOLOGICAL ENGINEERING - Biological Filters
It may be possible to make polluted water as pure as a mountain stream, with a cleansing system that uses plants and fish.
Air Date:
10/11/1991
Scientist:
Transcript:
Post navigation
ECOLOGICAL ENGINEERING
RECYCLING 3 – Glassphalt