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.