Next Article in Journal
Using Long Term Simulations to Understand Heat Transfer Processes during Steady Flow Conditions in Combined Sewers
Next Article in Special Issue
Effects of Packing Media and the Insertion of Vegetation on the Performance of Biological Trickling Filters
Previous Article in Journal
Water Supply Portfolio Planning and Policy Evaluation under Climate Change: A Case Study of Central Taiwan
Previous Article in Special Issue
The Influence of Design and Operational Factors on the Removal of Personal Care Products by Constructed Wetlands
Article

Plant Nutrient Uptake in Full-Scale Floating Treatment Wetlands in a Florida Stormwater Pond: 2016–2020

Department of Plant and Environmental Sciences, Clemson University, E-143 P&AS, Clemson, SC 29634, USA
Academic Editor: Ewa Wojciechowska
Water 2021, 13(4), 569; https://doi.org/10.3390/w13040569
Received: 26 January 2021 / Revised: 16 February 2021 / Accepted: 18 February 2021 / Published: 23 February 2021
Nutrient enrichment of surface waters degrades water quality. Municipalities need effective and economical solutions to remove nutrients from surface waters. From July 2016 to May 2020, full-scale (900 m2, 5% cover) floating treatment wetlands (FTWs) were deployed in Wickham Park pond, a eutrophic water body (0.13 mg/L total phosphorus (P), 0.96 mg/L total nitrogen (N)). The plants in FTWs in close proximity to a SB10000 mixer fixed N and P more efficiently. The rate of N (g/m2/year) fixed within tissues was highest for Juncus effusus (13.5), Agrostis alba (13.2), and Sagittaria lancifolia (12.1). The rate of P (g/m2/year) fixed within plant tissues was similar for all species (3.77, Agrostis alba, Canna spp., Iris hexagona, Juncus effusus, and Sagittaria lancifolia) save Pontederia cordata (2.52) volunteer species (1.41). The N and P removed with plant harvest were similar for non-mixed and mixed FTWs. Notably, the N:P ratio in plant tissues in 2017 (pre-mixer installation) was 11:1; after mixer installation (2018–2020), N:P ratios averaged 2.7:1, indicating increased P fixation within plant tissues. In 2017, 12,828 kg of plant tissues was harvested, removing 334 kg of N and 29.5 kg of P. In 2019, 32,958 kg of plant biomass was harvested from the pond, removing 425 kg of N and 138 kg of P. In 2020, 27,945 kg of biomass was harvested from FTWs, removing 267 kg of N and 95 kg of P. From 2016 to 2020, 73,000 kg of biomass was harvested, removing 1026 kg of N and 262 kg of P from Wickham Park pond. Knowing the total fresh biomass of tissues removed from FTWs at harvest is critical for accuracy in reporting nutrient removal aided by FTWs. View Full-Text
Keywords: nitrogen; phosphorus; constructed floating wetland; plant harvest; fresh biomass; mixing; volunteer species; weedy species nitrogen; phosphorus; constructed floating wetland; plant harvest; fresh biomass; mixing; volunteer species; weedy species
Show Figures

Graphical abstract

MDPI and ACS Style

White, S.A. Plant Nutrient Uptake in Full-Scale Floating Treatment Wetlands in a Florida Stormwater Pond: 2016–2020. Water 2021, 13, 569. https://doi.org/10.3390/w13040569

AMA Style

White SA. Plant Nutrient Uptake in Full-Scale Floating Treatment Wetlands in a Florida Stormwater Pond: 2016–2020. Water. 2021; 13(4):569. https://doi.org/10.3390/w13040569

Chicago/Turabian Style

White, Sarah A. 2021. "Plant Nutrient Uptake in Full-Scale Floating Treatment Wetlands in a Florida Stormwater Pond: 2016–2020" Water 13, no. 4: 569. https://doi.org/10.3390/w13040569

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop