Performance of pilot-scale vertical flow constructed wetlands with and without the emergent macrophyte Spartina alterniflora treating mariculture effluent

Sousa, Wilson Treger Zydowicz de; Panitz, Clarice Maria Neves; Thomaz, Sidinei Magela

doi:10.1590/s1516-89132011000200024

Cited by 15 publications

(2 citation statements)

References 33 publications

(49 reference statements)

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“…The treatment of effluent from Oncorhynchus mykiss farming by the macrophyte Phragmites australis was able to reduce the concentration of total suspended solids by 95.8 to 97.3%, total nitrogen concentration by 49 to 68.5% and total phosphorus concentration by 20.6 to 41.8% (Schulz et al, 2003). A constructed wetland colonized with the emergent macrophyte Spartina alterniflora used to treat the post-larvae effluent of the marine shrimp Litopenaeus vannamei reduced NO 2 -N (75%), NO 3 -N (35 to 55%) and P-orthophosphate concentration (59 to 64%) (Sousa et al, 2011). In addition to reducing the concentration of nutrients and suspended solids, the advantages of constructed wetlands compared to conventional systems (sedimentation ponds or lagoons or aerobic and anaerobic reactors) are lower installation costs, low energy consumption, easy maintenance and operation (Solano et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

Treatment efficiency of effluent prawn culture by wetland with floating aquatic macrophytes arranged in series

Henares

Camargo

2014

Braz. J. Biol.

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The efficiency of a series of wetland colonized with Eichhornia crassipes and Salvinia molesta to treat the effluent of a giant river prawn (Macrobrachium rosenbergii) broodstock pond was evaluated in this study. The experimental design was completely randomized and was performed in 9 rectangular tanks (1.6 m 3 ) with three treatments (constructed wetlands) and three replicates. The treatment types included: a wetland colonized with E. crassipes and S. molesta (EcSm) arranged sequentially, a wetland with E. crassipes only (Ec) and a wetland with S. molesta only (Sm). The means of suspended particulate material (SPM), total inorganic nitrogen (TIN), total Kjeldahl nitrogen (TKN), P-orthophosphate (PO 4 -P) and total phosphorus (TP) of the treated effluents were compared using ANOVA followed by Tukey's test (P<0.05). The effluent treated in Ec and EcSm wetlands exhibited lower SPM concentrations. The Ec wetland reduced TIN, TKN, PO 4 -P and TP by 46.0, 43.7, 44.4 and 43.6%, respectively. In the EcSm wetland, the reduction of TIN (23.0%), TKN (33.7%) and PO 4 -P (26.7%) was similar to the Sm wetland (19.8% TIN, 30.9% TKN and 23.8% PO 4 -P). The Ec wetland was more efficient in treating pond effluent due likely to the higher root surface of E. crassipes, which forms an extensive area favorable to retention and adsorption of debris and absorption of nutrients.Keywords: constructed wetland, Eichhornia crassipes, Macrobrachium rosenbergii, Salvinia molesta. Eficiência de wetland com macrófitas aquáticas flutuantes dispostas em serie para o tratamento do efluente do cultivo de camarão ResumoNeste estudo foi avaliada a eficiência de uma wetland povoada com Eichhornia crassipes e Salvinia molesta para o tratamento do efluente de um viveiro de manutenção de reprodutores do camarão-da-malásia (Macrobrachium rosenbergii). Um experimento totalmente casualizado foi realizado em 9 tanques retangulares (1,6 m 3 ) com 3 tratamentos (wetlands construídas) e 3 repetições. Os tratamentos foram: wetland povoada com E. crassipes e S. molesta (EcSm) dispostas nesta sequência, wetland somente com E. crassipes (Ec) e wetland somente com S. molesta (Sm). Os valores de material particulado em suspensão (MPS), nitrogênio inorgânico total (NIT), nitrogênio Kjeldahl total (NKT), P-ortofosfato (P-PO 4 ) e fósforo total (PT) dos efluentes tratados foram comparados pela ANOVA seguida do teste de Tukey (P<0,05). A wetland Ec reduziu a concentração de NIT, NKT, P-PO 4 e PT em 46,0%, 43,7%, 44,4% e 43,6%. Na wetland EcSm a redução de NIT (23,0%), NKT (33,7%) e P-PO 4 (26,7%) foi semelhante à observada na wetland Sm (19,8% para NIT, 30,9% para NKT e 23,8% para P-PO 4 ). A wetland povoada com E. crassipes é mais eficiente no tratamento do efluente do viveiro, provavelmente devido a maior superfície radicular da macrófita que permite a formação de uma extensa área propícia à retenção e adsorção dos detritos e à absorção dos nutrientes.

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Section: Introductionmentioning

confidence: 99%

Treatment efficiency of effluent prawn culture by wetland with floating aquatic macrophytes arranged in series

Henares

Camargo

2014

Braz. J. Biol.

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“…Previous studies on IMTA in marine finfish aquaculture have found large reductions of nitrogen (N) and phosphorus (P) using seaweeds (Shpigel and Neori ; Chopin et al ; Schuenhoff et al ; Neori et al ; Marinho‐Soriano et al ), marine microalgae (Truesdale et al ; Allen and Watanabe ), and salt‐tolerant plants (halophytes) (e.g., Spartina spp., Aster tripolium , Suaeda esteroa , and Salicornia spp.) (Brown et al ; Brown and Glenn ; Sousa et al , ; Webb et al , ; Buhmann and Papenbrock ; Shpigel et al ; Quintã et al ).…”

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Experimental Evaluation of the Halophyte, Salicornia virginica, for Biomitigation of Dissolved Nutrients in Effluent from a Recirculating Aquaculture System for Marine Finfish

Watanabe

Farnell

2017

J World Aquaculture Soc

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The ability of the halophyte, Salicornia virginica, planted in drainage lysimeters to biomitigate dissolved nutrients in effluent from a recirculating aquaculture system (RAS) for marine finfish was evaluated. Seawater effluent from a RAS producing black sea bass, Centropristis striata (filtered to reduce total suspended solids), was used as irrigant. Plant growth and dissolved N and P removal were determined as a function of leachate fraction (LF%) – that is, proportion of irrigant that leaches from the plant‐substrate lysimeter. Lysimeters were irrigated weekly to produce 30, 40, and 50% LF. A control (unplanted) lysimeter was included at the 30% LF. Plant growth was excellent in all LF% treatments until Day 141 when salt buildup in the lysimeter substrate inhibited nutrient uptake. Salt accumulation was mitigated at higher LF%, so that plant biomass and net removal (μg) of dissolved N and P by the p‐s lysimeter remained higher (P < 0.05) at the 40 and 50% than at the 30% LF. On Day 141, percent removal efficiency at the 50% LF was 79.2% for inorganic N and 73.9% for total phosphorus. Through Day 355, substrate salinity was minimized and plant biomass and nutrient removal were maximized at the 50% LF. S. virginica is an effective biofilter for dissolved nutrients in effluent from an RAS for marine finfish.

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Screening of 18 species for digestate phytodepuration

Pavan

Breschigliaro

Borin

2014

Environ Sci Pollut Res

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This experiment assesses the aptitude of 18 species in treating the digestate liquid fraction (DLF) in a floating wetland treatment system. The pilot system was created in NE Italy in 2010 and consists of a surface-flow system with 180 floating elements (Tech-IA®) vegetated with ten halophytes and eight other wetland species. The species were transplanted in July 2011 in basins filled with different proportions of DLF/water (DLF/w); periodic increasing of the DLF/w ratio was imposed after transplanting, reaching the worst conditions for plants in summer 2012 (highest EC value 7.3 mS cm/L and NH4-N content 225 mg/L). It emerged that only Cynodon dactylon, Typha latifolia, Elytrigia atherica, Halimione portulacoides, Salicornia fruticosa, Artemisia caerulescens, Spartina maritima and Puccinellia palustris were able to survive under the system conditions. Halophytes showed higher dry matter production than other plants. The best root development (up to 40-cm depth) was recorded for Calamagrostis epigejos, Phragmites australis, T. latifolia and Juncus maritimus. The highest nitrogen (10-15 g/m(2)) and phosphorus (1-4 g/m(2)) uptakes were obtained with P. palustris, Iris pseudacorus and Aster tripolium. In conclusion, two halophytes, P. palustris and E. atherica, present the highest potential to be used to treat DLF in floating wetlands.

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Performance of pilot-scale vertical flow constructed wetlands with and without the emergent macrophyte Spartina alterniflora treating mariculture effluent

Abstract: Vertical flow constructed wetlands, planted with and without

Cited by 15 publications

References 33 publications

Treatment efficiency of effluent prawn culture by wetland with floating aquatic macrophytes arranged in series

Treatment efficiency of effluent prawn culture by wetland with floating aquatic macrophytes arranged in series

Experimental Evaluation of the Halophyte, Salicornia virginica, for Biomitigation of Dissolved Nutrients in Effluent from a Recirculating Aquaculture System for Marine Finfish

Screening of 18 species for digestate phytodepuration

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