An investigation of the limits of phosphorus removal in wetlands: a mesocosm study of a shallow periphyton-dominated treatment system

DeBusk, Thomas A.; Grace, Kevin A.; Dierberg, Forrest E.; Jackson, Scott D.; Chimney, Michael J.; Gu, Baojing

doi:10.1016/j.ecoleng.2004.06.009

Cited by 55 publications

(25 citation statements)

References 21 publications

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“…The treatment wetlands in this study appear to be retained phosphate phosphorus (total phosphorus was not measured in this study) near a sustainable rate, according to that range, although it is conceivable that tropical systems could be more effective than the temperate zone estimates reported above. One of the few recent tropical/subtropical studies reported considerably lower phosphorus retention compared to this study; total phosphorus uptake of experimental mesocosm-scale wetlands in Florida was only 0.32 g P m −2 year −1 (DeBusk et al, 2004).…”

Section: Hydraulic Loading and Nutrient Retention Ratesmentioning

confidence: 48%

Tropical treatment wetlands dominated by free-floating macrophytes for water quality improvement in Costa Rica

Nahlik

Mitsch

2006

Ecological Engineering

145

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a b s t r a c tFive tropical treatment wetlands dominated by floating aquatic plants and constructed to deal with a variety of wastewaters were compared for their effectiveness in treating organic matter and nutrients in the Parismina River Basin in eastern Costa Rica. Wastewaters were from a dairy farm, a dairy processing plant, a banana paper plant, and a landfill. Four of the five wetland systems were effective in reducing nutrient levels of effluents before water was discharged into rivers. Ammonia levels in water entering most wetlands were considerably higher than ambient (i.e., riverine) levels; concentrations were reduced by as much as 92% in the wetlands and retained at a maximum rate of 166 g N m −2 year −1 .Nitrate nitrogen removal was variable, but occurred in low concentrations in the inflows (less than 1 mg N L −1 ). Phosphate phosphorus was present in high levels but was effectively reduced through the wetlands (92 and 45% reductions through dairy farm wetlands, 83% reduction through banana paper wetlands, and 80% reduction through dairy processing wetlands). Retention of phosphate phosphorus ranged from 0.1 to 10.7 g P m −2 year −1 in the treatment wetlands. Dissolved oxygen in the wetland outflows were ≤2 mg L −1 in three of the sampled wetlands, most likely a result of the abundant free-floating macrophytes that sheltered the water from diffusion and shaded aquatic productivity. The efficacy of these created wetlands to treat effluents from different sources varied, and modified wetland designs or active management may be necessary to improve water quality even further.Recommendations on tropical wetland design and management are presented, as are suggestions for implementing this ecological engineering approach with farmers in Central America.

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Section: Hydraulic Loading and Nutrient Retention Ratesmentioning

confidence: 48%

Tropical treatment wetlands dominated by free-floating macrophytes for water quality improvement in Costa Rica

Nahlik

Mitsch

2006

Ecological Engineering

145

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“…In this sense, the ability of CWs to remove phosphorus is limited when compared to the nitrogen removal capacity (DeBusK et al, 2004) since no permanent phosphorus loss is observed in these systems.…”

Section: Resultsmentioning

confidence: 99%

Nutrient Removal From Swine Wastewater in a Combined Vertical and Horizontal Flow Constructed Wetland System

Boas

Fia

et al. 2018

Eng. Agríc.

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This study aimed to assess the performance of a combined vertical flow (VFCW) and horizontal subsurface-flow (HFCW) constructed wetland systems built on a pilot scale and submitted to different configurations and organic load application rates of pre-treated swine wastewater (SWW) in anaerobic systems on the nitrogen and phosphorus removal.The average values of redox potential in the systems were between anoxic and aerobic conditions, favoring an increased nitrate concentration in VFCW. Nitrogen removal by VFCW-HFCW system can be considered as satisfactory, reaching removal values of 75%. VFCW and HFCW proved to be limited in phosphorus removal, reaching values of 48%.

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“…Verifica-se na Tabela 5 que não houve diferença significativa na remoção de potássio entre os SACs vegetados (SAC 2 e SAC 3 ) e não vegetados (SAC 1 ), diferentemente do que foi observado por Matos et al (2010a) elemento fósforo e substâncias tóxicas das águas residuárias, tanto pela adsorção, quando o material é utilizado como material suporte, quanto pela precipitação de formas químicas estáveis de fosfato (DeBUSK et al, 2004;TANAKA et al, 2007;KAASIK et al, 2008). pode ter ocorrido nos SACs operados neste experimento e contribuído para a formação da estruvita, reduzindo as concentrações de P, magnésio e amônio efluentes dos SACs.…”

Section: Remoção De Potássio Sódio Cálcio E Magnésiounclassified

Efeito da vegetação em sistemas alagados construídos para tratar águas residuárias da suinocultura

Fia

Matos

Fia

et al. 2016

Eng. Sanit. Ambient.

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RESUMONo presente trabalho, objetivou-se avaliar a influência da vegetação em sistemas alagados construídos (SACs) na remoção de poluentes da água residuária da suinocultura (ARS Artigo TécnicoEfeito da vegetação em sistemas alagados construídos para tratar águas residuárias da suinocultura Keywords: pig manure; wetlands; cattail; bermudagrass. Effect of vegetation in constructed wetlands treating swine wastewater INTRODUÇÃOA suinocultura é uma atividade pecuária que se expandiu muito nas últimas décadas, por conta do aumento da demanda de carnes e de derivados suínos, entretanto o desenvolvimento da suinocultura tem como fator de maior preocupação a quantidade de dejetos produzidos, que apresentam alto poder poluente, especialmente quando lançados sem tratamento em corpos hídricos. Entre as soluções simples propostas para o tratamento de águas residuárias ricas em material orgânico, como é o caso das provenientes de granjas suinícolas, distingue-se a sua disposição em sistemas alagados construídos (SACs) (SEZERINO et al., 2003;GONZÁLEZ et al., 2009;BORGES, 2011;WANG et al., 2014), por ser uma forma viável e barata para o tratamento dessas águas.Entre os componentes dos SACs, destacam-se as macrófitas, que formam uma das comunidades mais produtivas no ambiente aquá-tico, desempenhando importante papel na dinâmica dos nutrientes.Além da alta produtividade de sua biomassa, elas favorecem processos microbiológicos e bioquímicos para a decomposição da matéria

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An investigation of the limits of phosphorus removal in wetlands: a mesocosm study of a shallow periphyton-dominated treatment system

Cited by 55 publications

References 21 publications

Tropical treatment wetlands dominated by free-floating macrophytes for water quality improvement in Costa Rica

Tropical treatment wetlands dominated by free-floating macrophytes for water quality improvement in Costa Rica

Nutrient Removal From Swine Wastewater in a Combined Vertical and Horizontal Flow Constructed Wetland System

Efeito da vegetação em sistemas alagados construídos para tratar águas residuárias da suinocultura

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