The response of a freshwater wetland to long-term “low level” nutrient loads - marsh efficiency

Moustafa, M. Z.; Chimney, Michael J.; Fontaine, Thomas D.; Shih, G.; Davis, Steve

doi:10.1016/0925-8574(95)00063-1

Cited by 60 publications

(25 citation statements)

References 12 publications

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“…In addition, the impacts of these variables on P removal are often confounded by soil and vegetation conditions, regional rainfall, management activities, and other factors. In another study conducted in Florida, Moustafa et al [38] showed that the TP removal efficiency remained relatively constant during their 9-year study. Also N removal may be expected to change, e.g., due to succession in aquatic vegetation and accumulation of organic matter in wetland sediments.…”

Section: Secondary Domestic Wastewater 29mentioning

confidence: 99%

How effective are created or restored freshwater wetlands for nitrogen and phosphorus removal? A systematic review

et al. 2016

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Background: Eutrophication of aquatic environments is a major environmental problem in large parts of the world. In Europe, EU legislation (the Water Framework Directive and the Marine Strategy Framework Directive), international conventions (OSPAR, HELCOM) and national environmental objectives emphasize the need to reduce the input of nutrients to freshwater and marine environments. A widely used method to achieve this is to allow water to pass through a created or restored wetland. However, the large variation in measured nutrient removal rates in such wetlands calls for a systematic review. Methods:Searches for primary studies were performed in electronic databases and on the internet. One author performed the screening of all retrieved articles at the title and abstract level. To check that the screening was consistent and complied with the agreed inclusion/exclusion criteria, subsets of 100 articles were screened by the other authors. When screening at full-text level the articles were evenly distributed among the authors. Kappa tests were used to evaluate screening consistency. Relevant articles remaining after screening were critically appraised and assigned to three quality categories, from two of which data were extracted. Quantitative synthesis consists of meta-analyses and response surface analyses. Regressions were performed using generalized additive models that can handle nonlinear relationships and interaction effects.Results: Searches generated 5853 unique records. After screening on relevance and critical appraisal, 93 articles including 203 wetlands were used for data extraction. Most of the wetlands were situated in Europe and North America. The removal rate of both total nitrogen (TN) and total phosphorus (TP) is highly dependent on the loading rate. Significant relationships were also found for annual average air temperature (T) and wetland area (A). Median removal rates of TN and TP were 93 and 1.2 g m −2 year −1 , respectively. Removal efficiency for TN was significantly correlated with hydrologic loading rate (HLR) and T, and the median was 37 %, with a 95 % confidence interval of 29-44 %. Removal efficiency for TP was significantly correlated with inlet TP concentration, HLR, T, and A. Median TP removal efficiency was 46 % with a 95 % confidence interval of 37-55 %. Although there are small differences in average values between the two quality categories, the variation is considerably smaller among high quality studies compared to studies with lower quality. This suggests that part of the large variation between studies may be explained by less rigorous study designs. Conclusions:On average, created and restored wetlands significantly reduce the transport of TN and TP in treated wastewater and urban and agricultural runoff, and may thus be effective in efforts to counteract eutrophication. However, restored wetlands on former farmland were significantly less efficient than other wetlands at TP removal.

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Section: Secondary Domestic Wastewater 29mentioning

confidence: 99%

How effective are created or restored freshwater wetlands for nitrogen and phosphorus removal? A systematic review

et al. 2016

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“…A parte de todos los usos comentados anteriormente, esta tecnología también se está empleando alrededor del mundo para mejorar la calidad del agua de ríos y lagos contaminados (Pomogyi, 1993;Kadlec & Hey, 1994;Mitsch et al 1995;Spieles and Mitsch, 2000;Jing et al, 2001a,b;Moustafa, 1998;Kadlec et al, 2010aKadlec et al, , 2011Nairn and Mitsch, 2000;Juang & Chen, 2007;Huang et al, 2007;Wu et al, 2010;Jia et al, 2014), así como de aguas eutrofizadas (Coveney et al, 2002;He et al, 2007;Li et al, 2008;Wang et al, 2009;Tang et al, 2009;Dunne et al, 2012Dunne et al, , 2013Dunne et al, , 2015Hernández-Crespo et al, 2017).…”

Section: Aplicación De Los Humedales Artificiales Para El Tratamientounclassified

“…Como se ha comentado anteriormente, las celdas no fueron impermeabilizadas pero la textura del suelo (arcilloso-limoso) le confirió una conductividad hidráulica baja . Otros autores han publicado tasas de infiltraciones de este orden (inferiores al 10%) (Moustafa et al, 1998;Bachand & Horne, 2000a,b;Coveney et al, 2002) y de ordenes de magnitud mucho mayores, del entorno del 50% del agua de entrada o superiores (Reilly et al, 2000;Kadlec et al, 2010a. ) Figura 6-6: Reparto del volumen total de agua de entrada entre los diferentes HAFSTP.…”

Section: Datos Climáticos Del áRea De Estudiounclassified

“…En el caso del PID, fue en promedio mayor en el segundo año en el BP y en el tercer año en el PC. Moustafa et al (1996) Escor. agríc.…”

Section: 6unclassified

“…Ello se corroboraa en FG, donde la carga eliminada incrementó linealmente con la concentración y con la carga de entrada (Tabla 6-33, Figura 6-54, Figura 6-55), en línea con otros autores (Mitsch et al, 1995;Tanner et al, 1995a;Moustafa et al, 1996;Reddy et al, 1999;Nairn & Mitsch, 2000;Kadlec, 2005a;Bojcevska & Tondereski, 2007;Lu et al, 2009a;Dunne et al, 2012;Moustafa et al, 2012;Dunne et al, 2015).…”

Section: Cargas Eliminadas Y Factores Influyentesunclassified

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Estudio de los Humedales Artificiales de Flujo Superficial del Tancat de la Pipa como instrumentos para la restauración ambiental del lago de l'Albufera de Valencia

Rajadel¹

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Wetland phosphorus dynamics and phosphorus removal potential

Skinner

2022

Water Environment Research

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Wetlands are typically defined as inundated areas with hydric soils forming a transitional zone between terrestrial and aquatic systems. Wetlands have numerous ecosystem benefits, one of which is the potential to mitigate or reverse eutrophication of surface water bodies. The physical, chemical, and biological processes governing phosphorus cycling in wetlands are nuanced and complex; understanding these has direct relevance to the restoration of wetlands, particularly for projects aimed at improving water quality in adjacent water bodies. This literature review summarizes these processes and provides recommendations relevant to restoration of permanent and semipermanent flow‐through wetlands, such as those in the Upper Klamath Basin of Oregon. It also reviews several wetland restoration studies assessing phosphorus removal. In summary, appropriately designed and managed wetlands can remove 25% to 44% of inflowing total phosphorus. Deposition of particulate matter, adsorption, uptake by biomass, and peat accretion are the primary phosphorus sequestration mechanisms in wetlands, depending on site‐specific conditions (e.g., growing season length, vegetation communities, and soil type). In areas with relatively short growing seasons and where wintertime loads are targeted for treatment, as in the Upper Klamath Basin, deposition of particulate matter will be the primary mechanism for phosphorus sequestration in wetlands given that two of the three remaining processes occur during the growing season. Recommendations to maximize phosphorus sequestration in wetlands include the following: designing wetlands for hydraulic residence time of several days to weeks, managing wetlands for rapid establishment of wetland vegetation with limited decomposition potential (e.g., tule [hardstem bulrush] to facilitate peat accretion), and flooding during periods with low water temperatures and initially isolating restored wetlands from adjacent water bodies (both to minimize diffusive flux of phosphorus from wetland sediment to the water column). Relevant to the Upper Klamath Basin, there is also justification to prioritize areas with relatively high particulate phosphorus load given the potential limited capacity for phosphorus treatment associated with other sequestration mechanisms. Finally, a combination of mitigation and restoration strategies is necessary to achieve water quality objectives, meaning that wetland restoration alone may not be sufficient. Monitoring is advised to facilitate application of adaptive management principles. Practitioner Points Appropriately designed and managed wetlands can remove 25% to 44% of inflowing total phosphorus. Deposition of particulate matter, adsorption, uptake by biomass, and peat accretion are the primary phosphorus sequestration mechanisms in wetlands, depending on site‐specific conditions (e.g., growing season length, vegetation communities, and soil type). Recommendations to maximize phosphorus sequestration in wetlands include designing wetlands for hydraulic residence tim...

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The response of a freshwater wetland to long-term “low level” nutrient loads - marsh efficiency

Cited by 60 publications

References 12 publications

How effective are created or restored freshwater wetlands for nitrogen and phosphorus removal? A systematic review

How effective are created or restored freshwater wetlands for nitrogen and phosphorus removal? A systematic review

Estudio de los Humedales Artificiales de Flujo Superficial del Tancat de la Pipa como instrumentos para la restauración ambiental del lago de l'Albufera de Valencia

Wetland phosphorus dynamics and phosphorus removal potential

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