Nutrient Recovery by Seven Aquatic Garden Plants in a Laboratory-scale Subsurface-constructed Wetland

Polomski, Robert F.; Bielenberg, Douglas G.; Whitwell, Ted; Taylor, Milton D.; Bridges, William C.; Klaine, Stephen J.

doi:10.21273/hortsci.42.7.1674

Cited by 21 publications

(27 citation statements)

References 32 publications

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“…Experimental procedures were similar to those described by Polomski et al (2007). However, a brief description follows with an emphasis on the experimental setup and nutrient solution treatments.…”

Section: Methodsmentioning

confidence: 99%

“…Dried roots and shoots (80°C to constant dry weight) were ground separately in a Wiley Mill® (Thomas Scientific, Swedesboro, NJ) to pass through a 40-mesh (0.425-mm screen). N and P tissue concentrations were determined as described by Polomski et al (2007). N and P content was calculated by multiplying plant part dry weight by nutrient concentration.…”

Section: Plant and Water Analysismentioning

confidence: 99%

“…Compared to similar studies with herbaceous emergent aquatic plants, water hyacinth and water lettuce had N uptake efficiencies similar to Louisiana iris hybrid 'Full Eclipse,' Pontederia cordata 'Singapore Pink,' Thalia geniculata f. rheumoides Shuey, Rhyncospora colorata (L.) H. Pfeiffer, and Oenenathe javanica (Blume) DC. 'Flamingo' (Polomski et al 2007(Polomski et al , 2008.…”

Section: N and P Recoverymentioning

confidence: 99%

“…Their P recovery rates were similar to Canna x generalis Bailey (pro sp.) 'Bengal Tiger,' Peltandra virginica (L.) Schott, Pontederia cordata L. 'Singapore Pink, ' and Thalia geniculata f. rheumoides (Polomski et al 2007(Polomski et al , 2008. Phosphorus uptake by these floating macrophytes may have been affected by the N/P ratio of treatment solutions (Reddy et al 1989Jayaweera and Kasturiarachchi 2004) or the pea gravel medium, which may have altered root architecture and P acquisition.…”

Section: N and P Recoverymentioning

confidence: 99%

“…Recently, Polomski et al (2007) proposed a sustainable nutrient remediation strategy that involves the production of economically important emergent macrophytes in a SSF CW that remediates wastewater runoff. The objective of this study was to take an unconventional approach and determine the ability of water hyacinth, water lettuce, and parrotfeather, to thrive and recover nursery runoff levels of N and P in a similarly constructed laboratory-scale subsurface CW system.…”

Section: Introductionmentioning

confidence: 99%

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Nitrogen and Phosphorus Remediation by Three Floating Aquatic Macrophytes in Greenhouse-Based Laboratory-Scale Subsurface Constructed Wetlands

Polomski

Taylor

Bielenberg

et al. 2008

Water Air Soil Pollut

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In the greenhouse and container nursery production industry there is potential for runoff of nitrogen (N) and phosphorus (P), which may contaminate surface and groundwater. Since the 1950s constructed wetlands (CWs), as a simple, lowtechnology method, have been shown to effectively treat agricultural, industrial, and municipal wastewater. We investigated the N and P attenuating potential of three floating hydrophytes planted in a laboratoryscale subsurface flow (SSF) CW system. Over an 8-week period plants were supplied with N and P (0.39 to 36.81 mg·L −1 N and 0.07 to 6.77 mg·L −1 P) that spanned the rates detected in nursery runoff between the discharge and inflow locations of a commercial nursery currently employing CWs. Whole plant dry weight was positively correlated with N and P supplied. Highest N recovery rates were exhibited by water hyacinth (Eichhornia crassipes [Mart.] Solms.) and water lettuce (Pistia stratiotes L.). P recovery rates were similar for water hyacinth, water lettuce, and dwarf redstemmed parrotfeather (Myriophyllum aquaticum [Vell.] Verdc.). These floating hydrophytes can be cultivated in a SSF CW to remediate runoff losses of N and P. The possibility exists for integrating them into a polycultural remediation system that includes emergent aquatic macrophytes for processing and polishing nursery/greenhouse wastewater.

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Section: Methodsmentioning

confidence: 99%

Section: Plant and Water Analysismentioning

confidence: 99%

Section: N and P Recoverymentioning

confidence: 99%

Section: N and P Recoverymentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Nitrogen and Phosphorus Remediation by Three Floating Aquatic Macrophytes in Greenhouse-Based Laboratory-Scale Subsurface Constructed Wetlands

Polomski

Taylor

Bielenberg

et al. 2008

Water Air Soil Pollut

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Mechanistic understanding of the pollutant removal and transformation processes in the constructed wetland system

Malyan

Yadav

Sonkar

et al. 2021

Water Environment Research

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Constructed wetland systems (CWs) are biologically and physically engineered systems to mimic the natural wetlands which can potentially treat the wastewater from the various point and nonpoint sources of pollution. The present study aims to review the various mechanisms involved in the different types of CWs for wastewater treatment and to elucidate their role in the effective functioning of the CWs. Several physical, chemical, and biological processes substantially influence the pollutant removal efficiency of CWs. Plants species Phragmites australis, Typha latifolia, and Typha angustifolia are most widely used in CWs. The rate of nitrogen (N) removal is significantly affected by emergent vegetation cover and type of CWs. Hybrid CWs (HCWS) removal efficiency for nutrients, metals, pesticides, and other pollutants is higher than a single constructed wetland. The contaminant removal efficiency of the vertical subsurface flow constructed wetlands (VSSFCW) commonly used for the treatment of domestic and municipal wastewater ranges between 31% and 99%. Biochar/zeolite addition as substrate material further enhances the wastewater treatment of CWs. Innovative components (substrate materials, plant species) and factors (design parameters, climatic conditions) sustaining the long‐term sink of the pollutants, such as nutrients and heavy metals in the CWs should be further investigated in the future. Practitioner points Constructed wetland systems (CWs) are efficient natural treatment system for on‐site contaminants removal from wastewater. Denitrification, nitrification, microbial and plant uptake, sedimentation and adsorption are crucial pollutant removal mechanisms. Phragmites australis, Typha latifolia, and Typha angustifolia are widely used emergent plants in constructed wetlands. Hydraulic retention time (HRT), water flow regimes, substrate, plant, and microbial biomass substantially affect CWs treatment performance.

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Water Use and Treatment in Container-Grown Specialty Crop Production: A Review

Majsztrik

Fernandez

Fisher

et al. 2017

Water Air Soil Pollut

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While governments and individuals strive to maintain the availability of high-quality water resources, many factors can “change the landscape” of water availability and quality, including drought, climate change, saltwater intrusion, aquifer depletion, population increases, and policy changes. Specialty crop producers, including nursery and greenhouse container operations, rely heavily on available high-quality water from surface and groundwater sources for crop production. Ideally, these growers should focus on increasing water application efficiency through proper construction and maintenance of irrigation systems, and timing of irrigation to minimize water and sediment runoff, which serve as the transport mechanism for agrichemical inputs and pathogens. Rainfall and irrigation runoff from specialty crop operations can contribute to impairment of groundwater and surface water resources both on-farm and into the surrounding environment. This review focuses on multiple facets of water use, reuse, and runoff in nursery and greenhouse production including current and future regulations, typical water contaminants in production runoff and available remediation technologies, and minimizing water loss and runoff (both on-site and off-site). Water filtration and treatment for the removal of sediment, pathogens, and agrichemicals are discussed, highlighting not only existing understanding but also knowledge gaps. Container-grown crop producers can either adopt research-based best management practices proactively to minimize the economic and environmental risk of limited access to high-quality water, be required to change by external factors such as regulations and fines, or adapt production practices over time as a result of changing climate conditions.

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Nutrient Recovery by Seven Aquatic Garden Plants in a Laboratory-scale Subsurface-constructed Wetland

Cited by 21 publications

References 32 publications

Nitrogen and Phosphorus Remediation by Three Floating Aquatic Macrophytes in Greenhouse-Based Laboratory-Scale Subsurface Constructed Wetlands

Nitrogen and Phosphorus Remediation by Three Floating Aquatic Macrophytes in Greenhouse-Based Laboratory-Scale Subsurface Constructed Wetlands

Mechanistic understanding of the pollutant removal and transformation processes in the constructed wetland system

Water Use and Treatment in Container-Grown Specialty Crop Production: A Review

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