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Stormwater Treatment Evaluation of a Constructed Floating Wetland after Two Years Operation in an Urban Catchment

Author

Listed:
  • Christopher Walker

    (Covey Associates Pty Ltd., 124 Duporth Ave, Maroochydore, QLD 4558, Australia)

  • Katharina Tondera

    (Stormwater Research Group, University of the Sunshine Coast, Sippy Downs Drive, Sippy Downs, QLD 4558, Australia)

  • Terry Lucke

    (Stormwater Research Group, University of the Sunshine Coast, Sippy Downs Drive, Sippy Downs, QLD 4558, Australia)

Abstract

Constructed Floating Wetlands (CFW) for stormwater treatment are increasingly used to treat urban runoff. However, studies of large-scale systems and the long-term evaluation of their treatment efficiency are scarce. This article presents the final results of a two-year study of the pollutant removal performance of a CFW in a stormwater pond capturing runoff from a low-residential catchment in South-East Queensland (Australia) under subtropical conditions. Although the CFW treatment area to catchment ratio was only 0.14%, the results demonstrated a significant removal of both Total Suspended Solids (TSS) and Total Phosphorus (TP) from the stormwater inflows by the CFW. The efficiency ratios for TSS and TP were 81% and 52%, respectively. While the removal rate for total nitrogen was not significant for the CFW evaluated in this study, the ER was still 17%. However, the ERs for nitrate and nitrogen oxide were both 47%. The study results suggest that it may be possible to increase the pollution removal performance of the CFW by upsizing the system and including intermittent re-aeration zones in the surrounding stormwater pond. The results of this research study clearly demonstrate that CFW can be an effective treatment solution for the removal of pollution from urban stormwater runoff.

Suggested Citation

  • Christopher Walker & Katharina Tondera & Terry Lucke, 2017. "Stormwater Treatment Evaluation of a Constructed Floating Wetland after Two Years Operation in an Urban Catchment," Sustainability, MDPI, vol. 9(10), pages 1-10, September.
    • Handle: RePEc:gam:jsusta:v:9:y:2017:i:10:p:1687-:d:112862
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    Citations

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    Cited by:

    1. Angela Gorgoglione & Vincenzo Torretta, 2018. "Sustainable Management and Successful Application of Constructed Wetlands: A Critical Review," Sustainability, MDPI, vol. 10(11), pages 1-19, October.
    2. Alexandros I. Stefanakis, 2019. "The Role of Constructed Wetlands as Green Infrastructure for Sustainable Urban Water Management," Sustainability, MDPI, vol. 11(24), pages 1-19, December.
    3. Djesser Zechner Sergio & Alexandra Rodrigues Finotti, 2023. "Field-Scale Constructed Floating Wetland Applied for Revitalization of a Subtropical Urban Stream in Brazil," Sustainability, MDPI, vol. 15(20), pages 1-18, October.
    4. Adeel Younas & Love Kumar & Matthew J. Deitch & Sundus Saeed Qureshi & Jawad Shafiq & Sohail Ali Naqvi & Avinash Kumar & Arjmand Qayyum Amjad & Sabzoi Nizamuddin, 2022. "Treatment of Industrial Wastewater in a Floating Treatment Wetland: A Case Study of Sialkot Tannery," Sustainability, MDPI, vol. 14(19), pages 1-20, October.
    5. Ina Falfán & Maite Lascurain-Rangel & Gloria Sánchez-Galván & Eugenia J. Olguín & Arturo Hernández-Huerta & Melissa Covarrubias-Báez, 2023. "Visitors’ Perception Regarding Floating Treatment Wetlands in an Urban Green Space: Functionality and Emotional Values," Sustainability, MDPI, vol. 15(3), pages 1-16, January.
    6. Yan Wang & Xueping Gao & Bowen Sun & Yuan Liu, 2022. "Developing a 3D Hydrodynamic and Water Quality Model for Floating Treatment Wetlands to Study the Flow Structure and Nutrient Removal Performance of Different Configurations," Sustainability, MDPI, vol. 14(12), pages 1-12, June.
    7. Oriana Sanicola & Terry Lucke & Michael Stewart & Katharina Tondera & Christopher Walker, 2019. "Root and Shoot Biomass Growth of Constructed Floating Wetlands Plants in Saline Environments," IJERPH, MDPI, vol. 16(2), pages 1-11, January.
    8. Zhaozhe Chen & Ozeas S. Costa, 2023. "Nutrient Sequestration by Two Aquatic Macrophytes on Artificial Floating Islands in a Constructed Wetland," Sustainability, MDPI, vol. 15(8), pages 1-15, April.

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