Implementation and Maintenance of Floating Treatment Wetlands for Urban Stormwater Management

Borne, Karine; Fassman‐Beck, Elizabeth; Winston, Ryan J.; Hunt, William F.; Tanner, Chris C.

doi:10.1061/(asce)ee.1943-7870.0000959

Cited by 51 publications

(31 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The highly variable results found in this study are likely to be a result of highly variable, and/or low concentration pollution inflows. This result has also been found in previous studies [19,20,22,23]. Results that were less than the limits of detection (LoD) for that particular test, have been shown as 50% of the LoD.…”

Section: Resultssupporting

confidence: 71%

See 1 more Smart Citation

Field Evaluation of the Nutrient Removal Performance of a Gross Pollutant Trap (GPT) in Australia

Nichols

Lucke

2016

Sustainability

View full text Add to dashboard Cite

Field testing of a proprietary stormwater treatment device (GPT) was undertaken over a one year period at a commercial site located in Sippy Downs, Queensland. The focus of the study was primarily on evaluating the effectiveness of the GPT device in removing pollution in the form of nutrients (Total Suspended Solids, Total Nitrogen, Total Phosphorus) from stormwater runoff. Water quality analysis was performed on water samples taken from the inflow and outflow of the GPT during 15 natural rainfall events. A new testing protocol was developed to ensure a comprehensive investigation of the stormwater treatment performance of the GPT. Pollution treatment Efficiency Ratios (ER) calculated for the GPT were found to be 49.2% for TSS, 26.6% for TN and 40.6% for TP. Although the nutrient removal rates of the GPT observed in the study were below those specified by Queensland regulations, the results are considered notable for a stormwater treatment device that was not specifically designed to remove nutrients from stormwater.

show abstract

Section: Resultssupporting

confidence: 71%

“…Prior to statistical testing, concentrations of TSS, TN and TP were log transformed (Equation (4)) to achieve normality (Ryan-Joiner p > 0.01). A paired T-test was performed on the log-transformed data to calculate if the difference between means was significant [21,22].…”

Section: Performance Metricsmentioning

confidence: 99%

Field Evaluation of the Nutrient Removal Performance of a Gross Pollutant Trap (GPT) in Australia

Nichols

Lucke

2016

Sustainability

View full text Add to dashboard Cite

show abstract

“…bypassing flows) experienced in other studies [10,18], impermeable polyvinyl chloride (PVC) curtains were installed along the sides of the FTWs that fanned out towards the lake banks ( Figure 2). These ensured all inflows from Inlets 1 and 2 were treated by the FTWs.…”

Section: Study Sitementioning

confidence: 99%

“…These studies have shown that FTW are effective at removing pollutants from both wastewater [12][13][14][15] and stormwater [7,16,17]. The number of field studies undertaken on FTWs is limited, particularly in the application of FTWs to stormwater treatment [3,18,19]. Smaller-scale field studies in the USA [19] and New Zealand [4] have shown FTWs to be effective in removing a variety of pollutants from stormwater runoff from highways.…”

Section: Introductionmentioning

confidence: 99%

Using Floating Wetland Treatment Systems to Reduce Stormwater Pollution From Urban Developments

Schwammberger¹,

Walker²,

Lucke³

2017

GEOMATE

View full text Add to dashboard Cite

Floating treatment wetland (FTW) systems are an innovative stormwater treatment technology currently being trialled in Australia. FTWs provide support for selected plant species to remove pollutants from stormwater discharged into a storage basin. The plant roots provide large surface areas for biofilm growth, which serves to trap suspended particles and enable the biological uptake of nutrients. FTWs can be installed at the start of the construction phase and can therefore start treating construction runoff almost immediately. FTWs have the potential to provide a full range of stormwater runoff treatment (e.g. sediment and nutrient removal) from the construction phase onwards. A 101 m 2 FTWs has been installed within a greenfield development site on the Sunshine Coast, in Australia. The two-year research study investigated the pollution removal performance of the FTW for two different locations, one with low and one with moderate influent pollutant concentrations. This paper presents the research methodology used, and the initial study results of the treatment efficiency of FTWs.

show abstract

“…While many studies suggest strong potential for FTW use in stormwater systems, most studies have been performed in simulated environments such as mesocosms with relatively few studies taking place on real-world stormwater systems until recently [7,[23][24][25]. Because the performance of FTWs depends heavily on the design of the stormwater pond as well as characteristics of the FTW itself (i.e., surface area coverage and plant density) it is important to investigate real-world performance [14,23,24].…”

Section: Introductionmentioning

confidence: 99%

Nitrogen and Sediment Capture of a Floating Treatment Wetland on an Urban Stormwater Retention Pond—The Case of the Rain Project

2016

View full text Add to dashboard Cite

Abstract:Nitrogen is widely recognized as a chronic urban stormwater pollutant. In the United States, wet retention ponds have become widely used to treat urban runoff for quantity and quality. While wet ponds typically function well for the removal of sediments, nitrogen removal, performance can be inconsistent due to poor design and/or lack of maintenance. Retrofitting ponds to improve their nitrogen capture performance, however, is often expensive. By hydroponically growing macrophytes on wet ponds, floating treatment wetlands (FTW) may provide a cheap, sustainable means of improving nitrogen removal efficiency of aging stormwater ponds. Few studies have been performed on the effectiveness real-world stormwater systems, however. In this study, we investigated the nitrogen and sediment capture performance of a 50 m 2 floating treatment wetland deployed for 137 days on a stormwater wet pond located within an urban university campus near Washington, D.C. A total of 2684 g of biomass was produced, 3100 g of sediment captured, and 191 g of nitrogen removed from the pond. Although biomass production was relatively low (53 g/m 2 ), we found that nitrogen uptake by the plants (0.009 g/m 2 /day) was comparable to contemporary FTW studies.

show abstract

Implementation and Maintenance of Floating Treatment Wetlands for Urban Stormwater Management

Cited by 51 publications

References 31 publications

Field Evaluation of the Nutrient Removal Performance of a Gross Pollutant Trap (GPT) in Australia

Field Evaluation of the Nutrient Removal Performance of a Gross Pollutant Trap (GPT) in Australia

Using Floating Wetland Treatment Systems to Reduce Stormwater Pollution From Urban Developments

Nitrogen and Sediment Capture of a Floating Treatment Wetland on an Urban Stormwater Retention Pond—The Case of the Rain Project

Contact Info

Product

Resources

About