Phytoremediation of a dissolved nitrate by using Louisiana Irises (Iris Professor Claude).
The purpose of this experiment is to determine if the Louisiana
Iris (Iris Professor Claude) can be used for Phytoremediation of
Nitrates in contaminated waterways. It was hypothesized that the plants
would remove more than 35% of the Nitrate concentrations as N[O.sub.3].
The procedure used for this experiment was the sub-irrigation method.
Seven plants were put into 4 fish tanks. Two plants each in 3 tanks and
1 plant in the fourth tank. Different ppm of nitrate was added to each
tank, 100ppmN, to tank A, 250ppmN, to tank B, and 500ppmN to tank C, and
tank D was the control. The findings did not support the experimental
hypothesis. The ppm in each tank did not considerably change. One
variable that did change was the health of the plants. There was a
drastic change in most of the plant health color, leaf numbers, and root
growth of plants grown in Nitrate solution. The control variable
remained the same.
Mack A. Frost
Spring Valley High School