|Watts Bridge constructed Vetiver wetland|
Coordinates: -27.099224º 152.459996º
Friday, March 3, 2017
This constructed wetland has been operating since 2005 and is still working well. So well that effluent throughput could be doubled. Here is some comparative data from one of the test wells (#4) for years 2008 and (2017): pH:7 (6.5); P mg/l: 1.2 (0.25); Ammonium N: 0.13 (0.1); Nitrite N: 003 (0.022); Nitrate N: 0.097 (0.063), Nitrite + Nitrate N: 0.01 (0.041); Fecal coliform du/100ml: <10 (10). This system was installed by Paul Truong (Veticon). Note that out of the four test wells only well #4 had water in it. All the others were dry in 2017.
This link takes you to an earlier presentation by Paul Truong including images and details:
This type of vetiver application is highly replicable, low cost and efficient
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Useful gallery of all blog images (with captions) posted on Picassa