Construction of Grey Water Purification System
- project with students from the "Art, Sustainability, Society and Education" course at David Yellin College, Jerusalem,
April 2014 at "Gan HaBeit", Harduf
|sketch of the wetland system|
|excavating for the pond and the tanks|
|preparing and leveling the excavated hole for the pond|
|laying drainage pipes|
The lined pond was then filled with layers of river boulders, basalt aggregate and wood chips. The grey water would filter through these layers from the bottom to the top.
|filling the first layer of river boulders|
|filling a layer of wood chips|
|installing the collection tank|
Finally, the pond was planted with special water plants which provide a oxygenated environment around their root system for the bacteria which break down the organic matter in the grey water.
|planting inside and outside the pond|
|the complete wetlands|
The following video clip gives an impression of the collective effort in creating this project, which was completed within four days. During this time the students also did some landscape drawing under my guidance.
The "wetlands team" poses for a group photograph: