Changes

Planted soil filter

3 bytes removed, 23:00, 12 May 2015
External links
=== External links ===
* General information about Planted soil filter [http://www.bodenfilter.de/engdef.htm www.bodenfilter.de/engdef.htm ]
* General information [http://www.constructedwetlands.org www.net/ constructedwetlands.org net ]
* General information [http://www.gtz.de/ecosan www.gtz.de/ecosan ]
* General information [http://www.sandec.ch www.sandec.ch ]
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