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Large Constructed Wetlands for Phosphorus Control: A Review

Robert Kadlec
2016 Water  
Stormwater systems display differences between wet and dry season behavior, which appear to be flow-driven. Several models of system performance have been developed, both steady and dynamic.  ...  Thirty-seven such wetlands have been built and have good data records, with a median size of 754 ha. All are successfully removing phosphorus from a variety of waters.  ...  The acquisition of that data was the result of massive efforts and expenditures. Conflicts of Interest: The author declares no conflict of interest.  ... 
doi:10.3390/w8060243 fatcat:7gm5ccbnerfdbm6l6bq5jqg2si

Particle size distribution predicts particulate phosphorus removal

Mark River, Curtis J. Richardson
2017 Ambio  
Particulate phosphorus (PP) is often the largest component of the total phosphorus (P) load in stormwater.  ...  Fine-resolution measurement of particle sizes allows us to investigate the mechanisms behind the removal of PP in stormwater wetlands, since the diameter of particles influences the settling velocity and  ...  Thanks go to the Duke Wetland Center for funding from its Fellowship Program.  ... 
doi:10.1007/s13280-017-0981-z pmid:29164536 pmcid:PMC5722747 fatcat:si267kfpvfbg7bhja5db4uyloi

Phosphorus Retention in Streams and Wetlands: A Review

K. R. Reddy, R. H. Kadlec, E. Flaig, P. M. Gale
1999 Critical reviews in environmental science and technology  
This work was supported in part by the South Florida Water Management District and the U.S. Department of Agriculture, Competitive Research Grants Office Grant No. 91-37102-6784.  ...  O'Connor, Soil and Water Science Department, University of Florida, and Dr. N. Aumen, South Florida Water Management District for their critical reviews of the manuscript.  ...  Phosphorus settling and interaction with benthic layers are modeled as an empirical function of the inorganic fraction of P and oxygen dynamics of the sediment.  ... 
doi:10.1080/10643389991259182 fatcat:24vfpgte4jfmhlzj2g74gb6idy

Floating treatment wetland aided remediation of nitrogen and phosphorus from simulated stormwater runoff

Sarah A. White, Matthew M. Cousins
2013 Ecological Engineering: The Journal of Ecotechnology  
Floating treatment wetlands may prove most effective in low nutrient environments where it is necessary to polish water quality to extremely low P concentrations. Published by Elsevier B.V.  ...  More N and P were fixed in the below-mat biomass of both species than in the above-mat biomass, thus whole-plant harvest may be a critical management strategy for floating treatment wetlands.  ...  Brad Glenn for contributions in sampling and laboratory work. Technical Contribution No. 6160 of the Clemson University Experiment Station.  ... 
doi:10.1016/j.ecoleng.2013.09.020 fatcat:hjqjtl37cvb2hm5btxn6updjza

Methylmercury in Managed Wetlands [chapter]

Rachel J. Strickman, Carl P. J. Mitchell
2017 Multifunctional Wetlands  
To address this, I investigated the extent, drivers, and consequences of MeHg production in important types of managed wetlands, as well as the response of MeHg to specific management interventions.  ...  The direct or indirect management of wetlands is pervasive, but many questions remain regarding the impact of wetland management on MeHg biogeochemistry.  ...  We would especially like to acknowledge the tireless analytical excellence of Haiyong (Planck) Huang for assistance in MeHg and THg data collection.  ... 
doi:10.1007/978-3-319-67416-2_7 fatcat:djrhqcigefbepgu26ugfajr7be

Spatially Explicit Modeling of Land Use Specific Phosphorus Transport Pathways to Improve TMDL Load Estimates and Implementation Planning

Erica J. B. Gaddis, Alexey Voinov
2009 Water resources management  
Mass-balance and dynamic landscape simulation models were used to describe the distribution of the average annual phosphorus load to streams (10.57 t/year) in terms of space, time, and transport process  ...  Dissolved phosphorus in surface runoff from the agricultural landscape, driven by high soil phosphorus concentrations, accounts for 41% of the total load to watershed streams.  ...  The model was driven with climatic data from 1984 to 1989.  ... 
doi:10.1007/s11269-009-9517-z fatcat:silxxr3ztjh7rndkhzznkswlwu

Implementing Legally Mandated Science and Peer Review in Support of the Everglades Restoration Program

Thomas Fontaine, Keith W. Rizzardi, Garth Redfield
2011 Social Science Research Network  
It draws upon the results of one segment of a more encompassing monitoring, modeling and experimental research effort designed to understand and predict wetland hydrology, biogeochemistry, fire dynamics  ...  A major challenge to this entire enterprise was the fact that all this effort needed to be focused on effects at very low phosphorus levels in surface water, on the order of 10 -20 ug/L.  ... 
doi:10.2139/ssrn.1925038 fatcat:hlssz7aegjamjgz7nh7e5zgfxi

Adapting the Relaxed Tanks-in-Series Model for Stormwater Wetland Water Quality Performance

Laura Merriman, Jon Hathaway, Michael Burchell, William Hunt
2017 Water  
performance of stormwater control measures such as constructed stormwater wetlands (CSWs).  ...  The goal of this study was to determine how well the relaxed tanks-in-series (P-k-C*) model described the performance of CSWs in North Carolina.  ...  The founding sponsors had no role in the design of the study; in the collection, analyses, or interpretation of data; in the writing of the manuscript, or in the decision to publish the results.  ... 
doi:10.3390/w9090691 fatcat:4bfxuzflirddbisvuhvpzfupzi

Evaluation of nutrient stoichiometric relationships among ecosystem compartments of a subtropical treatment wetland. Do we have "Redfield wetlands"?

Paul Julian, Stefan Gerber, Rupesh K. Bhomia, Jill King, Todd Z. Osborne, Alan L. Wright, Matthew Powers, Jacob Dombrowski
2019 Ecological Processes  
Evaluation of carbon (C), nitrogen (N), and phosphorus (P) ratios in aquatic and terrestrial ecosystems can advance our understanding of biological processes, nutrient cycling, and the fate of organic  ...  Conclusions: Assessment of wetland nutrient stoichiometry between and within ecosystem compartments suggests unconstrained stoichiometry related to P that conforms with the notion of P limitation in the  ...  Acknowledgements We would like to thank SFWMD and UF Wetland Biogeochemistry Laboratory staff members for providing the data used in this analysis.  ... 
doi:10.1186/s13717-019-0172-x fatcat:hpcpbst4cna2rd6fxzn7u4ke2u

Management scenario evaluation for a large treatment wetland using a spatio-temporal phosphorus transport and cycling model

Rajendra Paudel, Joong-Hyuk Min, James W. Jawitz
2010 Ecological Engineering: The Journal of Ecotechnology  
This paper describes the development of a two-dimensional, spatially distributed model to simulate coupled hydrologic and phosphorus (P) biogeochemical processes in a 147-ha cell of a 1544-ha stormwater  ...  The model was used to assess the effects of a suite of feasible management alternatives on the long-term ability of the wetland to sustain total P (TP) removal.  ...  Grace contributed to the hydrologic and P cycling model development. Also, Drs.  ... 
doi:10.1016/j.ecoleng.2010.06.012 fatcat:3jfgdd44unbkxj3axhxjyyibky

DESIGN BASIS FOR EVERGLADES STORMWATER TREATMENT AREAS

William W. Walker
1995 Journal of the American Water Resources Association  
Spatial and temporal variations in marsh water-column data suggest that drought-induced recycling of phosphorus was important during periods of low stage in WCA-2A.  ...  The model is calibrated and tested against peat and water-column data collected in Water Conservation Area-2A (WCA-2A), where phosphorus dynamics and eutrophication impacts have been intensively studied  ...  Robert Kadlec of the University of Michigan contributed substantially to the conception, development, and testing of the model framework. Dr. Thomas Fontaine, Dr. Nicholas Aumen, Dr.  ... 
doi:10.1111/j.1752-1688.1995.tb03393.x fatcat:pehlude6mvhv7hssp3aynn4mc4

Predicting pollutant removal in constructed wetlands using artificial neural networks (ANNs)

Christopher Kiiza, Shun-qi Pan, Bettina Bockelmann-Evans, Akintunde Babatunde
2020 Water Science and Engineering  
This study aimed to design novel configurations of tidal-flow vertical subsurface flow constructed wetlands (VFCWs) for treating urban stormwater.  ...  Models based on the artificial neural network (ANN) method were built using inputs derived from data exploratory techniques, such as analysis of variance (ANOVA) and principal component analysis (PCA).  ...  research was partly supported by the UK Engineering and Physical Sciences Research Council (EPSRC) Studentship and Asset International, who provided the HDPE materials used to build bespoke constructed wetlands  ... 
doi:10.1016/j.wse.2020.03.005 fatcat:tm6akxtgbbczjdfgcy4tstofh4

Nutrient homeostasis and mechanisms related to nutrient retention by wetland macrophytes in a subtropical wetland [article]

Paul Julian, Stefan Gerber, Jill King, Alan L Wright
2017 bioRxiv   pre-print
In wetland ecosystems, vegetation is a large, highly variable and dynamic sink of nutrients.  ...  The hypotheses of this study assumed wetland vegetation will be non-homeostatic relative to ambient available nutrients and that due to changes in nutrient availability, phosphorus (P) resorption by EAV  ...  Acknowledgements We would like to SFWMD and UF Wetland Biogeochemistry Laboratory staff members for field and analytical support.  ... 
doi:10.1101/221465 fatcat:ka4gdjn425hjvhk2tqxw7jwtgi

Adaptive measurements of urban runoff quality

Brandon P. Wong, Branko Kerkez
2016 Water Resources Research  
The study watershed did not exhibit a strong first flush and intra-event concentration variability was driven by flow acceleration, wherein the largest loadings of TSS and total phosphorus corresponded  ...  water quality dynamics when in-situ sensors are not available.  ...  Data and source code, as well as hardware and sensor schematics used to produce the figures in this paper can be obtained by directly contacting the authors or visiting their website (www.tinyurl.com/bkerkez  ... 
doi:10.1002/2015wr018013 fatcat:xerjaq36ubb2nm2lb6xwnya5au

The ecological–societal underpinnings of Everglades restoration

Fred H. Sklar, Michael J. Chimney, Susan Newman, Paul McCormick, Dale Gawlik, ShiLi Miao, Christopher McVoy, Winifred Said, Jana Newman, Carlos Coronado, Gaea Crozier, Michael Korvela (+1 others)
2005 Frontiers in Ecology and the Environment  
This uncertainty is associated with sizing and operating STAs and with soil P dynamics downstream in the marsh.  ...  In addition, high phosphorus (P) loads in runoff from developed areas have damaged portions of the historically nutrient-poor Everglades (McCormick et al. 2002) .  ... 
doi:10.1890/1540-9295(2005)003[0161:teuoer]2.0.co;2 fatcat:wzweniap6vc5hezgxehib25rzq
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