Evidence details

rebecca.killalea@canberra.edu.au on 15 Feb 2022
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Study

Citation
Tanner, C. C., & Headley, T. R. (2011). Components of floating emergent macrophyte treatment wetlands influencing removal of stormwater pollutants. Ecological Engineering.
Study description
This study looked at the influence of different components of floating treatment wetlands (FTWs) on pollutant removal from stormwater. The study used a series of mesocosm tanks to test removal rates under several treatments made up of different aspects of FTWs.

Response

Cause term/trajectory
Plants (aquatic)
Cause description
Floating treatment wetlands
Effect term/trajectory
Water quality - metals (Decrease)
Effect description
Reduction of copper from water. The presence of planted floating mats significantly improved removal of copper from the synthetic stormwater. Planted treatments resulted in 65-75% reduction in total Cu concentrations after 7 days. The synthetic root treatment acheived Cu reduction of 50% after 7 days whilst the floating mat with soil media and floating mat treatments achieved 43% and 30% reduction respectively. Little change was seen in the control.
Response measure type
Mean difference
Statistical significance
p<0.05

Design

Source data
Mesocosm
Study type
Manipulation
Study design
Control/reference vs. treatment/impact (no before)
Number of independent control or reference sampling units
1
Number of indendent impact or treatment sampling units
8 treatments with 3 replicates.
Sample size used in analysis
24

Context

Climate
Temperate
Country
New Zealand
Habitat
Artificial
Spatial extent
Other
Temporal extent
Days
Context description
Spatial extent: mesocosm. Pollutant removal measured at 0, 1, 3 and 7 days.