Floating treatment wetland influences on the fate and removal performance of phosphorus in stormwater retention ponds

Borne, Karine

doi:10.1016/j.ecoleng.2014.03.062

Cited by 89 publications

(49 citation statements)

References 22 publications

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“…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%

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

Nichols

Lucke

2016

Sustainability

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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.

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Section: Resultssupporting

confidence: 71%

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

Nichols

Lucke

2016

Sustainability

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“…Tanner et al [10] found that FTW were capable of reducing wastewater TSS by up to 81%, total nitrogen (TN) by up to 34%, and total phosphorus (TP) by up to 19%. Borne [11] observed significant reductions in TP as a result of a FTW installation in a stormwater pond. Similarly Borne et al [12] in NZ found FTW retrofitted stormwater ponds to be more efficient at removing TSS.…”

Section: Site Descriptionmentioning

confidence: 99%

“…Juvenile plants are established directly into this floating matrix, and the roots grow into the water column below (Figure 2). Studies undertaken in the United States and New Zealand [10][11][12][13][14][15][16] have found that FTW can provide an effective, low cost, and low maintenance means of treating domestic and agricultural Studies undertaken in the United States and New Zealand [10][11][12][13][14][15][16] have found that FTW can provide an effective, low cost, and low maintenance means of treating domestic and agricultural wastewater and stormwater. Tanner et al [10] found that FTW were capable of reducing wastewater TSS by up to 81%, total nitrogen (TN) by up to 34%, and total phosphorus (TP) by up to 19%.…”

Section: Introductionmentioning

confidence: 99%

“…Juvenile plants are established directly into this floating matrix, and the roots grow into the water column below (Figure 2). Studies undertaken in the United States and New Zealand [10][11][12][13][14][15][16] have found that FTW can provide an effective, low cost, and low maintenance means of treating domestic and agricultural Contemporary artificial FTWs are typically constructed using a combination of woven plastic, organic based matting, and fibreglass [8,10]. Juvenile plants are established directly into this floating matrix, and the roots grow into the water column below (Figure 2…”

Section: Introductionmentioning

confidence: 99%

“…Following these early successes, FTWs have since been used for a variety of purposes including treatment of pollution emanating from mine tailings [4][5][6][7], and pollution removal from stormwater [8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

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Performance Evaluation of a Floating Treatment Wetland in an Urban Catchment

Nichols

Lucke

Drapper³

et al. 2016

Water

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Floating Treatment Wetland (FTW) systems are purpose-built devices designed to replicate the water treatment processes that occur in and around naturally occurring floating vegetated islands. FTWs can be used to improve the water quality of water storage ponds by contributing to water treatment processes through adhesion, filtration, nutrient uptake (direct use by plants), and sequestration. This paper presents the results of a twelve-month investigation into the pollution removal performance of a FTW receiving stormwater runoff from a 7.46 ha urban residential catchment. As anticipated, there was a high degree of variation in FTW treatment performance between individual rainfall events. Overall pollution removal performance was calculated to be 80% for Total Suspended Solids (TSS), 53% for Total Phosphorous (TP), and 17% for Total Nitrogen (TN) for a FTW footprint of 0.14% of the contributing catchment. TSS and TP concentrations were found to be significantly reduced after FTW treatment. The minimum FTW footprint to catchment size ratio required to achieve regulated nutrient removal rates was calculated to be 0.37%. Sum of loads calculations based on flow resulted in pollution load reductions of TSS 76%, TP 55%, and TN 17%. Pollution treatment performance (particularly for TN) was found to be affected by low influent concentrations, and highly-variable inflow concentrations. The study demonstrated that FTWs are an effective treatment solution for the removal of pollution from urban stormwater runoff.

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Floating Wetlands: A Sustainable Tool for Wastewater Treatment

Shahid

Arslan

Ali

et al. 2018

CLEAN Soil Air Water

102

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Floating treatment wetland (FTW) is an effective and sustainable technology for wastewater treatment. It has been widely adopted for treating various kinds of polluted water including agricultural runoff, stormwater, industrial effluents, etc. In FTWs, plants are vegetated on a floating mat while their roots are extended down to the contaminated water hence acting as biological filters. Nutrients and potentially toxic metal(s)/element(s) are taken up from the wastewater by plants through their roots whereas organic matter is degraded by the microorganisms forming biofilms on the roots and mat surface. Additionally, organic contaminants which are already taken up by the plants are degraded by endophytic bacteria in planta. This article provides an overview of FTWs and their application for wastewater treatment. The key factors which have an impact on the performance of FTWs are also described. Lastly, the potential role of combined use of plants and bacteria in FTWs for the maximum remediation of polluted water is emphasized.

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Floating treatment wetland influences on the fate and removal performance of phosphorus in stormwater retention ponds

Cited by 89 publications

References 22 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

Performance Evaluation of a Floating Treatment Wetland in an Urban Catchment

Floating Wetlands: A Sustainable Tool for Wastewater Treatment

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