Article
Agronomy
Anita Jakubaszek
Summary: The study found that young plants in the rapid growth stage contain the highest levels of total nitrogen and total phosphorus, while the leaves of common reeds have a higher capacity for nitrogen phytoaccumulation. The surface layer of the filtration material in constructed wetland beds has the highest content of total nitrogen and total phosphorus, with accumulation decreasing with depth and outflow direction of sewage.
Article
Ecology
Khaled Amiri, Naceur Eddine Bekkari, Abd Errezak Debbakh, Warda Chaib
Summary: This study aims to compare the evapotranspiration rates in two experimental vertical flow subsurface constructed wetlands and provides the crop coefficient for different macrophytes. The results show that the planted lysimeters have higher cumulative ET values compared to unplanted ones, and the P. australis bed has higher accumulated ET values than the T. latifolia bed.
ECOHYDROLOGY & HYDROBIOLOGY
(2022)
Article
Environmental Sciences
Khaled Amiri, Naceur Eddine Bekkari, Abd Errezak Debbakh, Warda Chaib, Wahida Kherifi
Summary: The study compared the removal efficiency of organic matter and nutrient pollutants from water in arid region between different configurations of pilot-scale vertical subsurface flow constructed wetlands. Results showed that vegetated wetlands were more effective than non-planted ones in removing contaminants, with different plant species and substrate types having varying impacts on water quality parameters.
WATER AIR AND SOIL POLLUTION
(2022)
Article
Environmental Sciences
A. Pascual, J. A. Alvarez, D. de la Varga, C. A. Arias, D. Van Oirschot, R. Kilian, M. Soto
Summary: The influence of bed depth on the performance of aerated horizontal constructed wetlands was investigated at the pilot plant scale. The results showed that a larger bed depth and artificial aeration can improve the loading rate and the removal efficiency of organic matter and nitrogen in the horizontal constructed wetlands.
SCIENCE OF THE TOTAL ENVIRONMENT
(2024)
Article
Environmental Sciences
Thomas Wagner, Fatma Al-Manji, Jie Xue, Koen Wetser, Vinnie de Wilde, John R. Parsons, Huub H. M. Rijnaarts, Alette A. M. Langenhoff
Summary: Petroleum-industry wastewater can be a potential source of reusable water, with constructed wetlands capable of removing harmful fractions. Increasing salinity negatively impacts the efficiency of wetlands in removing harmful substances, with vegetation playing a crucial role in enhancing the removal of certain chemicals.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Engineering, Chemical
Yan Zhang, Hongyun Dong, Xinhua Li, Piet N. L. Lens, Nana Wang, Hongyuan Liu, Yanjun Wang, Ying Li
Summary: A series of constructed wetlands with Phragmites australis were used to evaluate the removal efficiency of nitrogen, phosphorus, and COD in the presence of different Cu2+ or Zn2+ concentrations. The results showed that increasing Cu2+ concentrations improved TN and NH4+-N removal, with an optimal concentration of 2 mg/L for nitrogen removal enhancement. Zn2+ inhibited TN and NO3--N removal due to the formation of complexes with recalcitrant organic matter. However, Zn2+ slightly improved COD removal and affected denitrification processes.
DESALINATION AND WATER TREATMENT
(2023)
Article
Environmental Sciences
Abdulaziz S. Alquwaizany, Ghulam Hussain, Abdullah Al-Zarah
Summary: Saudi Arabia is facing a severe shortage of high-quality water, and exploring alternative methods for water supply is crucial. This research investigated the performance and efficiency of green plants, such as common reed and broadleaf cattail, for wastewater treatment in eastern Saudi Arabia. The results showed that both plants were effective in reducing pollutant concentrations in wastewater.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Agronomy
Paraskevas Parlakidis, Ioanna Gounari, Aristidis Georgiou, George Adamidis, Zisis Vryzas, Georgios D. Gikas
Summary: This study aims to investigate the efficiency of four pilot-scale horizontal subsurface flow constructed wetlands in remediating myclobutanil and triticonazole. The results show that the removal rate of the fungicides is influenced by the wetland design and plant species.
Article
Environmental Sciences
Sule Ozcelik, Selda Tekin-Ozan
Summary: This study investigates the seasonal changes of heavy metals in Phragmites australis and Typha angustifolia grown in Egirdir Lake, and explores their potential for phytoremediation. The results show that both plants have high accumulation abilities for molybdenum and zinc, making them suitable for improving the current situation of the lake.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Engineering, Chemical
Georgios D. Gikas, Vassiliki A. Papaevangelou, Vassilios A. Tsihrintzis, Maria Antonopoulou, Ioannis K. Konstantinou
Summary: The study indicates that biodegradation and adsorption onto substrate were the most prevalent removal routes of the target EPs in CWs.
Article
Water Resources
R. Shruthi, G. P. Shivashankara
Summary: The study found that increasing Hydraulic Retention Time can improve the removal efficiency of pollutants in horizontal subsurface flow constructed wetlands, with 6 days of HRT showing good removal of organic matter. The seasonal removal efficiency was in the order of summer > rainy > winter for all parameters, but the difference was not statistically significant.
WATER PRACTICE AND TECHNOLOGY
(2022)
Article
Engineering, Chemical
Georgios D. Gikas, Zisis Vryzas, Ioannis Karametos, Vassilios A. Tsihrintzis
Summary: This study investigated the effectiveness of two pilot-scale constructed wetlands and six gravity filters in removing pyraclostrobin from polluted water. The results showed that constructed wetlands performed better in removing the fungicide compared to gravity filters. The feeding strategy also affected the removal efficiency of pyraclostrobin in the gravity filters.
Article
Environmental Sciences
Valentina Carrillo, Cristobal Collins, Jacques Brisson, Gladys Vidal
Summary: The study evaluated long-term phosphorus retention efficiency in a pilot-scale constructed wetland system over nearly 8 years. Both Schoenoplectus californicus and Phragmites australis showed significant phosphorus removal efficiency, with factors such as phosphorus loading rate, hydraulic loading rate, and dissolved oxygen being correlated with long-term retention. Plant uptake of phosphorus increased with operational years, with warmer seasons showing higher efficiency in phosphorus uptake.
INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
(2022)
Article
Plant Sciences
Lisa Cangioli, Maria Salobehaj, Sara Del Duca, Camilla Fagorzi, Chiara Berardi, Ester Coppini, Donatella Fibbi, Renato Fani, Alberto Vassallo
Summary: This study characterized the bacterial communities associated with P. australis, soils, and permeates in an artificial wetland in Italy using next-generation sequencing. The results showed that P. australis has a specific microbiota that remains consistent across different plant tissues and over time. This ability allows P. australis to survive in the hostile environment of artificial wetlands.
Article
Environmental Sciences
Sylvie Muwanga Tebitendwa, Ashton Keith Cowan
Summary: This study investigated the use of South African bituminous discard as filter bed material for constructed wetlands (CW). The results showed that the discard coal could be successfully used in CW systems, with good plant growth and nutrient removal efficiency.
WATER AIR AND SOIL POLLUTION
(2023)
Article
Ecology
A. S. Kusmer, J. -O. Goyette, G. K. MacDonald, E. M. Bennett, R. Maranger, P. J. A. Withers
Article
Environmental Sciences
Jean-Olivier Goyette, Elena M. Bennett, Roxane Maranger
Article
Environmental Sciences
Graham K. MacDonald, Julie Talbot, Tim R. Moore, Julien Arsenault, Sibeal McCourt, Aidan Goertzen, Max Emile Kessler-Nadeau, Kevin Manaugh, Roxane Maranger, Brian E. Robinson
ENVIRONMENTAL RESEARCH LETTERS
(2020)
Article
Environmental Sciences
Richard LaBrie, Jean-Francois Lapierre, Roxane Maranger
JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
(2020)
Article
Biology
Nicolas F. St-Gelais, Jean-Francois Lapierre, Robert Siron, Roxane Maranger
Article
Limnology
Richard LaBrie, Simon Belanger, Ronald Benner, Roxane Maranger
Summary: This study utilizes empirical data and SpAD modeling to investigate the relationships among DOM compounds, metabolic processes, and prokaryotic diversity. Different SpAD taxonomic groups were found to be associated with specific organic compounds and metabolic rates. The study proposes a framework to bridge the gap between prokaryotic diversity, microbial ecology, and biogeochemistry across scales.
LIMNOLOGY AND OCEANOGRAPHY
(2021)
Article
Limnology
Stephanie Shousha, Roxane Maranger, Jean-Francois Lapierre
Summary: The study found that carbon concentrations were stable along the river continuum, while nitrogen and phosphorus rapidly increased downstream due to urban and agricultural land uses. The dominant form of nitrogen shifted from dissolved organic nitrogen in forested reaches to nitrate in downstream areas. The spatial and temporal variation in stoichiometry of the north temperate river was influenced by human impacts and seasonal trends in temperature and hydrology.
LIMNOLOGY AND OCEANOGRAPHY
(2021)
Article
Multidisciplinary Sciences
Richard LaBrie, Berangere Pequin, Nicolas Fortin St-Gelais, Igor Yashayaev, Jennifer Cherrier, Yves Gelinas, Francois Guillemette, David C. Podgorski, Robert G. M. Spencer, Luc Tremblay, Roxane Maranger
Summary: The microbial carbon pump (MCP) hypothesis suggests that the transformation of labile dissolved organic carbon (DOC) by prokaryotes contributes to the stability of the deep ocean DOC reservoir. This study provides empirical evidence of the MCP in natural waters, showing that carbon sequestration is more efficient in deeper waters. The higher diversity of prokaryotes from the rare biosphere holds a greater metabolic potential in creating stable dissolved organic compounds.
Article
Environmental Sciences
Stephanie Shousha, Roxane Maranger, Jean-Francois Lapierre
Summary: This study quantified the changes in dissolved organic matter (DOM) composition and nutrient forms along a river with different land use and seasonal patterns. The results showed significant spatial and temporal shifts in DOM composition associated with different nutrient forms. These changes indicated contrasting loading and processing potential depending on land use and seasonal patterns.
Article
Environmental Sciences
M. Botrel, C. Hudon, J. B. Heffernan, P. M. Biron, R. Maranger
Summary: Our study revealed the significant influence of climate conditions on nitrogen pollution removal in large rivers, as well as on the abundance of underwater vegetation. Water temperature and level were found to be critical factors in determining plant abundance, with optimal conditions stimulating the growth of plants and promoting the removal of nitrogen pollution through denitrification by bacteria.
WATER RESOURCES RESEARCH
(2022)
Article
Environmental Sciences
J. O. Goyette, M. Botrel, G. Billen, J. Garnier, R. Maranger
Summary: This study analyzed the nitrogen and phosphorus fluxes in 78 watersheds of the St. Lawrence Basin in eastern Canada from 1901 to 2011 and found that the shift from sustainable to unsustainable agricultural practices over the past century has led to environmental losses. The study suggests reducing nutrient flux and reconnecting crop and animal farming to mitigate these losses.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Biodiversity Conservation
Morgan Botrel, Roxane Maranger
Summary: Submerged aquatic vegetation (SAV) in lake littoral zones is vital for maintaining ecosystem services, but global trends and drivers of SAV quantities remain unclear. This study provides a comprehensive synthesis of SAV trends using long-term time series data, revealing the dominant drivers of change in different regions. It highlights the urgent need for research and management actions to address knowledge gaps and preserve SAV and its crucial role in lake ecosystems.
GLOBAL CHANGE BIOLOGY
(2023)
Article
Limnology
Morgan Botrel, Christiane Hudon, Pascale M. Biron, Roxane Maranger
Summary: Measuring biomass of freshwater submerged aquatic vegetation (SAV) at large spatial scales is challenging. The combination of quadrat-scuba diver technique, fast rake sampling, and large-scale echosounding can provide more accurate estimates. The relationship between quadrat and rake biomass varies with substrate type and SAV growth form, while rake biomass can be accurately estimated from biovolume derived from echosounding. Sequential application of calibrations can yield accurate predictions, with echosounding being more accurate at larger scales. A step-by-step guideline is developed to decide when to use each technique.
LIMNOLOGY AND OCEANOGRAPHY-METHODS
(2023)
Article
Environmental Sciences
Stephanie Shousha, Roxane Maranger, Jean-Francois Lapierre
Summary: This study investigates the long-term trends in carbon (C), nitrogen (N), and phosphorus (P) exports in a river system in Quebec, Canada. The results show that N exports have increased over time, largely driven by changes in precipitation and net anthropogenic N inputs on land. On the other hand, P exports have tended to decrease, despite higher net anthropogenic P inputs. The study also reveals changes in ecosystem stoichiometry over the years, reflecting the differential elemental exports influenced by natural and anthropogenic drivers.
GLOBAL BIOGEOCHEMICAL CYCLES
(2023)
Article
Limnology
Maciej Bartosiewicz, Anna Przytulska, Jean-Francois Lapierre, Isabelle Laurion, Moritz F. Lehmann, Roxane Maranger
LIMNOLOGY AND OCEANOGRAPHY LETTERS
(2019)
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)
