Here a funny real video that show a TW planting with iris pseudacorus and canna indica made by me and Dr. Matteo Tamburini (ETRA spa consultant) in North of Italy. It is an horizontal flow as tertiary treatment after activated sludges treatment plants for more than 7000 p.e. .
See and smile!
http://www.youtube.com/watch?v=eLESpuHxvbk
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