Article
Environmental Sciences
Qiang Zhou, Liansheng He, Donghai Yuan, Rui Meng, Hao Zhao, Hangchen Zhao, Yahui Zhang, Shilin Du
Summary: Stormwater wetlands play a crucial role in the urban environment by providing various ecosystem services. This study focused on the effects of different operating conditions, such as hydraulic retention time (HRT) and water depth, on pollutant removal and dissolved organic matter (DOM) characteristics in a stormwater wetland. The results showed that the wetland exhibited excellent pollutant removal performance, with higher removal rates observed at longer HRT and lower water depth. Additionally, UV-VIS spectral analysis indicated a decrease in the humification and aromaticity of DOM after wetland treatment.
ENVIRONMENTAL TECHNOLOGY
(2023)
Article
Engineering, Environmental
Yang Ran, Zheng-rong Fu, Man-ying Ma, Xian Liu
Summary: The study enhanced the nitrogen and phosphorus removal effect in traditional bioretention systems by adding new composite fillers, with the optimal ratio identified. By introducing saturated zones and optimizing media depth, efficient removal of total phosphorus, NO3--N, and TN was achieved.
WATER SCIENCE AND TECHNOLOGY
(2021)
Article
Ecology
Nader Nakhaei, Leon Boegman, Mahyar Mehdizadeh, Mark Loewen
Summary: A three-dimensional coupled hydrodynamic-biogeochemical model was used to study eutrophication in stormwater ponds in Edmonton, Alberta. The model accurately simulated spatial gradients and predicted trophic state, showing potential for improving pond conditions by reducing nutrient loads.
ECOLOGICAL MODELLING
(2021)
Article
Environmental Sciences
Md Nuruzzaman, A. H. M. Faisal Anwar, Ranjan Sarukkalige
Summary: Floating Treatment Wetland (FTW) is a cost-effective and easy-to-retrofit device for stormwater treatment. The study found that the design configurations of FTW, such as geometry, position, and inlet-outlet, significantly affect the hydrodynamics and treatment efficiency. Circular FTW geometry near the inlet with a center inlet-side outlet configuration achieved the highest removal rate, while far side inlet-side outlet configuration performed the worst due to short-circuiting. The results provide valuable insights for practitioners to improve water quality and ecological improvement goals.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Green & Sustainable Science & Technology
Mohammad Nayeb Yazdi, Durelle Scott, David J. Sample, Xixi Wang
Summary: Urban retention ponds are a common stormwater control measure in coastal areas, but can also be a source of pollutants. Research showed that the treatment efficiency of retention ponds improved during warmer months, likely due to increased biological activities. Modeling with SWMM can help assess performance beyond one-year monitoring studies, suggesting additional research to better understand biogeochemical processes within ponds.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Environmental Sciences
Cristina M. Monteiro, Cristina Santos, Paula M. L. Castro
Summary: This study assessed the suitability of a previously developed model for determining the runoff coefficient in green roofs (GRs) and evaluated different time scales for runoff coefficient determination. The results showed that the model did not fit the experimental data from this study, indicating the need for a new model that considers additional variables. The study also found that monthly determination of the runoff coefficient resulted in lower values than weekly or per rain event determination, but there were no significant differences when applied to long-term performance analysis.
Review
Engineering, Environmental
Xinzhu Zheng, Yicheng Zou, Amanda W. Lounsbury, Can Wang, Ranran Wang
Summary: The global popularity of green roofs is increasing due to urban runoff being a major environmental concern. A statistical analysis of 2375 original experimental samples from 21 countries shows that factors such as rainfall intensity, substrate depth, and vegetation type impact the retention performance. There is a need for more research and application of green roofs in certain regions, and potential improvements in retention rates.
RESOURCES CONSERVATION AND RECYCLING
(2021)
Review
Environmental Sciences
Rozi Sharma, Jan Vymazal, Piyush Malaviya
Summary: Floating treatment wetlands (FTWs) are gaining popularity for their ability to remediate wastewater, preserve ecosystem quality, and offer landscape conservation and aesthetic benefits. They can overcome technical challenges in stormwater treatment and enhance system efficiency through understanding hydraulics and other operational parameters.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Hana Sigutova, Petr Pyszko, Jiri Valusak, Ales Dolny
Summary: This study compared the differences between highway stormwater ponds and surrounding ponds using Odonata as a bioindicator. The results showed that stormwater ponds had higher Odonata richness, beta-diversity, and conservation values, but their taxonomic distinctness was lower compared to surrounding ponds. The trophic state, relative tree shading, and fish stocking intensity were found to be the most important factors affecting the differences between the two pond types. The study highlights the potential of stormwater ponds to enhance biodiversity in non-urban areas and suggests management practices to enhance their conservation function.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Engineering, Environmental
Jinhui Zhao, Lisha Shu, Mengke Wu, Jiabi Han, Shuyu Luo, Jixian Tang
Summary: Urban waterlogging and poor water quality caused by stormwater runoff are growing problems. A combined permeable concrete pavement and constructed wetland system was developed to treat and reuse stormwater runoff. The system achieved high removal rates for suspended solids, but the effluent did not meet the standards for rainwater reuse in terms of chemical oxygen demand, total nitrogen, and total phosphorus concentrations. Further optimization of aeration in the wetland allowed the system to meet the standards for stormwater reuse.
WATER SCIENCE AND TECHNOLOGY
(2023)
Article
Environmental Studies
Stephen J. Birkinshaw, Vladimir Krivtsov
Summary: In order to reduce flooding risk in urban and peri-urban river catchments, the optimal location and design of retention ponds are crucial. This study considers the effect of existing and potential ponds on river discharges in the Braid Burn catchment in Edinburgh, Scotland. The results show that the larger Blackford pond is most effective at reducing peak discharge, while the other three ponds have similar designs. The study highlights the importance of considering the location of retention ponds in flood risk reduction.
Article
Ecology
John Awad, Guna Hewa, Baden Robert Myers, Chris Walker, Terry Lucke, Bayram Akyol, Xuanhua Duan
Summary: This study examined the growth of native Australian plants in constructed floating wetlands (CFWs) and their uptake of total nitrogen (TN) and total phosphorus (TP) from synthetic water representing stormwater and municipal wastewater. The results showed that the overall dry weight of roots and shoots, as well as the TN and TP removal, increased with higher nutrient levels in the water. Different plant species had different growth and nutrient removal efficiencies, with Baumea rubiginosa (BR) having higher shoot weight and Phragmites australis (PA) having higher root weight. PA showed higher TN removal efficacy while BR showed higher TP removal efficacy.
ECOLOGICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Erika Olson, Christina L. M. Hargiss, Jack Norland
Summary: Little is known about the spatial and temporal changes of Escherichia coli in urban stormwater systems. This project aimed to assess E. coli in urban stormwater detention basins and retention ponds using microbial source tracking (MST). Results showed higher levels of E. coli during rain events in both detention basins and retention ponds.
WATER ENVIRONMENT RESEARCH
(2022)
Article
Engineering, Civil
A. Raimondi, G. Becciu
Summary: An analytical probabilistic approach was developed to evaluate the performance of green roofs for stormwater control, considering the possibility of pre-filling. Equations for optimum green roof design were proposed, and parameters affecting the runoff process were examined. A case study was conducted to test the goodness of fit of the resulting equations.
WATER RESOURCES MANAGEMENT
(2021)
Article
Environmental Sciences
R. Andrew Tirpak, Katharina Tondera, Rebecca Tharp, Karine E. Borne, Peter Schwammberger, Jan Ruppelt, Ryan J. Winston
Summary: This study conducted a meta-analysis of eight international FTW studies to investigate the influence of retention pond, catchment, and FTW design characteristics on effluent concentrations. The results showed that pond design features had the most influence on effluent water quality, while the benefits of FTWs were limited to improving the mitigation of phosphorus species and TSS.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Engineering, Civil
W. Lisenbee, Jon Hathaway, L. Negm, M. Youssef, R. Winston
JOURNAL OF HYDROLOGY
(2020)
Article
Environmental Sciences
Andrew Tirpak, Ryan J. Winston, Melissa Feliciano, Jay D. Dorsey
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2020)
Article
Environmental Sciences
Seungjun Lee, Michael Suits, David Wituszynski, Ryan Winston, Jay Martin, Jiyoung Lee
SCIENCE OF THE TOTAL ENVIRONMENT
(2020)
Article
Environmental Sciences
Joseph S. Smith, Ryan J. Winston, R. Andrew Tirpak, David M. Wituszynski, Kathryn M. Boening, Jay F. Martin
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2020)
Article
Engineering, Civil
R. Andrew Tirpak, Ryan J. Winston, Ian M. Simpson, Jay D. Dorsey, Alec G. Grimm, Rachel L. Pieschek, Erik A. Petrovskis, Donald D. Carpenter
Summary: This study demonstrates that the combination of bioretention cells and permeable pavement can significantly reduce runoff from commercial parking lots, but the loading ratio of permeable pavement should be lower for better performance.
JOURNAL OF HYDROLOGY
(2021)
Article
Water Resources
R. Andrew Tirpak, Ryan J. Winston, Melissa Feliciano, Jay D. Dorsey, Thomas H. Epps
Summary: Permeable pavements are designed to treat urban stormwater runoff, and studies have shown that they can reduce runoff volumes and peak flow rates while delaying the occurrence of peak discharge. Additionally, using appropriate modeling methods can help improve design features of permeable pavement systems to enhance their hydrologic performance.
HYDROLOGICAL PROCESSES
(2021)
Article
Environmental Sciences
Ian M. Simpson, Ryan J. Winston, R. Andrew Tirpak
Summary: Permeable pavements are used to mitigate negative hydrologic outcomes, but clogging in joint openings hinders their hydraulic function. Various maintenance techniques were tested on PICPs in Ohio, with some improving surface infiltration rates significantly, although restoring hydraulic conditions to initial levels was challenging.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2021)
Article
Environmental Sciences
Kay Bernard, Angela Davis, Ian M. Simpson, Vanessa L. Hale, Jiyoung Lee, Ryan J. Winston
Summary: This study aimed to detect the presence of SARS-CoV-2 in stormwater using RT-ddPCR, finding the virus in the majority of samples tested. The research also discovered that rainfall characteristics impact virus gene concentrations and different cities have varying levels of SARS-CoV-2 gene in stormwater.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Correction
Environmental Sciences
Ian M. Simpson, Ryan J. Winston, Michael R. Brooker
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Robert Furen, Kelsey Flanagan, Ryan J. Winston, R. Andrew Tirpak, Jay D. Dorsey, Maria Viklander, Godecke-Tobias Blecken
Summary: The study investigates the occurrence and accumulation of organic pollutants in older bioretention facilities used for stormwater treatment. The results show that these pollutants tend to accumulate in the upper media layers of the filter material and their concentrations decrease with depth. The variation in pollutant concentrations between different sites is likely due to differences in pollutant sources and land uses.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Ecology
Joseph S. Smith, Ryan J. Winston, David M. Wituszynski, R. Andrew Tirpak, Kathryn M. Boening-Ulman, Jay F. Martin
Summary: Urban stormwater is a significant source of nutrients and sediment to aquatic ecosystems. Green infrastructure (GI) is an effective method to treat stormwater pollutants, using soil and plants as natural filters. Blueprint Columbus, a project in Ohio, USA, successfully utilized GI to eliminate sanitary sewer overflows and remove suspended solids from developed areas. The study found that GI was effective at reducing nutrient and sediment concentrations and loads at the watershed scale.
ECOLOGICAL ENGINEERING
(2023)
Article
Water Resources
Stacy K. Luell, Ryan J. Winston, William F. Hunt
Summary: This study presented a grassed swale in Knightdale, North Carolina, and its water quality treatment efficiency during over 30 runoff events. The results indicated that the swale could effectively reduce the discharge of nitrogen, phosphorus, and suspended solids, but had limitations for certain particle sizes.
JOURNAL OF SUSTAINABLE WATER IN THE BUILT ENVIRONMENT
(2021)
Article
Environmental Sciences
Ryan J. Winston, Kristi Arend, Jay D. Dorsey, William F. Hunt
BLUE-GREEN SYSTEMS
(2020)
Article
Water Resources
Ryan J. Winston, Kristi Arend, Jay D. Dorsey, Jeffrey P. Johnson, William F. Hunt
JOURNAL OF SUSTAINABLE WATER IN THE BUILT ENVIRONMENT
(2020)
Article
Engineering, Environmental
Laila C. Soberg, Ryan Winston, Maria Viklander, Godecke-Tobias Blecken
Article
Ecology
Alexander M. Cancelli, Frank A. P. C. Gobas
Summary: A mechanistic model was developed to assess the removal efficiency of pollutants in a wetland system, particularly in oil sands process-affected water (OSPW). The model simulated wetland mechanisms of chemical removal and showed that sustained wetland treatment is feasible. It is a helpful tool to evaluate the feasibility of treatment systems and to assess trade-offs in wetland design and operation.
ECOLOGICAL ENGINEERING
(2024)
Article
Ecology
Prakash Singh Thapa, Hiromu Daimaru, Seiji Yanai
Summary: This study assessed the vegetation recovery and erosion condition in a landslide area in central Japan. The results show that the upper slope, where reforestation activities were implemented, has seen significant vegetation recovery and no significant erosion, while the lower slope lacks vegetation and has experienced continued erosion.
ECOLOGICAL ENGINEERING
(2024)
Article
Ecology
Mike Jerauld, Forrest Dierberg, Thomas DeBusk, Scott Jackson, Kevin Grace, John Juston
Summary: The Everglades Stormwater Treatment Areas (STAs) are constructed wetlands built to remove phosphorus (P) from agricultural and urban runoff in support of Everglades restoration. Research shows that the levels of calcium (Ca) and alkalinity (Alk) have an impact on phosphorus removal in these wetlands.
ECOLOGICAL ENGINEERING
(2024)
Article
Ecology
Kalindhi Larios, Stefan Gerber, Rafael Munoz-Carpena, Patrick Inglett, K. Ramesh Reddy, Michael Chimney
Summary: This study modeled the phosphorus biogeochemical dynamics in one of the best performing Everglades treatment wetlands and found that the complexity of the hydrological system significantly affected the simulated water column P concentration. The modeling tool developed in this study can guide future data collection and optimization efforts for treatment wetlands in the Everglades.
ECOLOGICAL ENGINEERING
(2024)
Article
Ecology
Jing Hu, Benjamin Baiser, R. Thomas James, K. Ramesh Reddy
Summary: This study examined the long-term phosphorus retention in Stormwater Treatment Areas (STAs) and identified the factors influencing their performance. The results showed that the operational performance of STAs improved over time. There were notable differences among individual STAs, with the co-precipitation of phosphorus with calcium playing a critical role in one of the STAs. This highlights the complexity of phosphorus removal in STAs and the need for site-specific management strategies.
ECOLOGICAL ENGINEERING
(2024)
Article
Ecology
Odi Villapando, K. R. Reddy, J. King
Summary: The biogeochemical response to different flow conditions within two parallel flow-ways in Everglades Stormwater Treatment Area (STA)-2 was studied. It was found that there was a gradual decrease in the total phosphorus (TP) concentration from inflow to outflow for both emergent aquatic vegetation (EAV) and submerged aquatic vegetation (SAV) dominated systems, with EAV showing a higher reduction rate. Significant increase in TP concentration was observed in the SAV system under no flow condition, possibly due to the production of particulate phosphorus (PP) through various mechanisms.
ECOLOGICAL ENGINEERING
(2024)