Treatment performances of floating wetlands: A decade of studies in North Italy

Barco, Alberto; Borin, Maurizio

doi:10.1016/j.ecoleng.2020.106016

Cited by 30 publications

(14 citation statements)

References 87 publications

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“…The ortho-P values in all tests were in the range of 0.042-0.105 mg/L. FTW/B did not contribute to the reduction of phosphorus, as observed in the study of Barco and Borin [2020]. Normally, phosphorus is reduced by sorption, precipitation, and plant uptake processes [Maucieri et al, 2020].…”

Section: Performance Of the Integrated Ftw And Biofi Lter (Ftw/b)supporting

confidence: 52%

“…In the control and experimental tests, the COD, BOD, TKN, NH 4 , ortho-P, and SS at S6 and S7 were lower than those in the other tests due to the aeration by the turbine. The concentrations of all parameters pollutants by the microorganisms in the biofi lms attached to the plant roots and biofi lters [Barco and Borin, 2020]. Some organic matter was also fi ltered out by the plant roots [Barco and Borin, 2020].…”

Section: Performance Of the Integrated Ftw And Biofi Lter (Ftw/b)mentioning

confidence: 99%

“…The concentrations of all parameters pollutants by the microorganisms in the biofi lms attached to the plant roots and biofi lters [Barco and Borin, 2020]. Some organic matter was also fi ltered out by the plant roots [Barco and Borin, 2020]. Moreover, the activity of microorganisms was supported and accelerated by the release of oxygen passing through the aerenchyma tissue of plants into the rhizosphere area [ Pavlineri et al, 2017].…”

Section: Performance Of the Integrated Ftw And Biofi Lter (Ftw/b)mentioning

confidence: 99%

“…Moreover, they can be applied on fish farms due to their ability to move with the water level. Macrophytes are usually planted in FTWs, such as Iris pseudacorus L., Canna indica L., [Wu et al, 2016], Cyperus alternifolius [Zhang et al, 2014] [Abed et al, 2017], and agricultural runoff [Barco and Borin, 2020].…”

Section: Introductionmentioning

confidence: 99%

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Implementation of an Integrated Floating Wetland and Biofilter for Water Treatment in Nile Tilapia Aquaculture

Somprasert¹,

Mungkung²,

Kreetachat³

et al. 2021

J. Ecol. Eng.

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Due to the high nutrient and organic matter contents of fish pond water, the water must be treated before disposal to prevent the eutrophication and deterioration of natural receiving waters. Floating wetlands (FTWs) and biofilters are environmentally friendly ecological treatments that can be used for this water. Thus, this study aimed to investigate the performance of FTWs with biofilters (FTW/Bs) for nutrient and organic compound removal. Two FTW/ Bs were applied in a pond with 5,000 Nile tilapia. The macrophyte species in the FTWs were Cyperus (Cyperus spp.) and Heliconia (Heliconia spp.). The buoyant mats of the FTWs were made from bamboo, and 200 bioballs were loaded below the mats. The water quality parameters in the pond were monitored for 5 weeks between the control test without the FTW/Bs and the experimental test with FTW/Bs at sites 1 (S1) to 8 (S8). The FTW/Bs were located at sites 2 (S2) and 3 (S3). The results showed reductions in all water quality parameters except orthophosphate (ortho-P) at S2 and S3. The COD, BOD, NH 4 -N, and SS at S2 and S3 parameters during the experimental test were significantly lower than those during the control test, in the ranges

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Section: Performance Of the Integrated Ftw And Biofi Lter (Ftw/b)supporting

confidence: 52%

Section: Performance Of the Integrated Ftw And Biofi Lter (Ftw/b)mentioning

confidence: 99%

Section: Performance Of the Integrated Ftw And Biofi Lter (Ftw/b)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Implementation of an Integrated Floating Wetland and Biofilter for Water Treatment in Nile Tilapia Aquaculture

Somprasert¹,

Mungkung²,

Kreetachat³

et al. 2021

J. Ecol. Eng.

View full text Add to dashboard Cite

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“…Nonetheless, plants may also pose a hazard to the survival of microbes. For instance, the alkaloids released by Nuphar lutea inhibit the action of microbes, and even the phenolic compounds generated by certain plants are toxic to microbes [86].…”

Section: The Interaction Among Substrates Plants and Microbesmentioning

confidence: 99%

Towards Effective, Sustainable Solution for Hospital Wastewater Treatment to Cope with the Post-Pandemic Era

Liu

Zhao

Cai

et al. 2023

IJERPH

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Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) has spread across the globe since the end of 2019, posing significant challenges for global medical facilities and human health. Treatment of hospital wastewater is vitally important under this special circumstance. However, there is a shortage of studies on the sustainable wastewater treatment processes utilized by hospitals. Based on a review of the research trends regarding hospital wastewater treatment in the past three years of the COVID-19 outbreak, this review overviews the existing hospital wastewater treatment processes. It is clear that activated sludge processes (ASPs) and the use of membrane bioreactors (MBRs) are the major and effective treatment techniques applied to hospital wastewater. Advanced technology (such as Fenton oxidation, electrocoagulation, etc.) has also achieved good results, but the use of such technology remains small scale for the moment and poses some side effects, including increased cost. More interestingly, this review reveals the increased use of constructed wetlands (CWs) as an eco-solution for hospital wastewater treatment and then focuses in slightly more detail on examining the roles and mechanisms of CWs’ components with respect to purifying hospital wastewater and compares their removal efficiency with other treatment processes. It is believed that a multi-stage CW system with various intensifications or CWs incorporated with other treatment processes constitute an effective, sustainable solution for hospital wastewater treatment in order to cope with the post-pandemic era.

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An assessment of nutrient removal by harvesting constructed floating wetlands in two coastal lagoons in the SE Baltic Sea

Lesutienė,

Bielecka,

Petkuvienė

et al. 2024

Ecohydrology

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In the last decades, so‐called internal or sea‐based mitigation measures have been suggested as nature‐based solutions to remove nutrients and improve water quality in semi‐enclosed coastal waters. However, these have rarely been tested in the field, especially in colder climates where winter ice cover is common. The aim of this experimental research was to investigate plant growth conditions in such an environment, as well to estimate nutrient removal capacity by harvesting constructed floating wetlands (CFWs). We tested small (24–28 m2) CFWs (Biomatrix®, Scotland, UK) at two demonstration sites: the Curonian lagoon (CL, Lithuania) and Szczecin lagoon (SL, Poland). In the CL, CFWs were planted predominantly with Carex acutiformes (Ehrh.), while the SL CFW was planted mainly with the reed Phragmites australis (Cav.) Trin. ex Steud. We aimed to test the amount of nutrient removal by plant harvesting over three subsequent years (2019–2021). We investigated carbon storage capacity and plant nutrient stoichiometry as indicators of potential nutrient limitation in the brackish coastal waters. Plant biomass increased annually, stabilising at 2.5–3.7 kg wet weight m−2. The total nutrient uptake per installed island area varied with the plant species composition. In the successive years, the harvested plants from the CL CFW dominated by Carex accumulated 10.4–13.1 g N m−2, 0.6–0.8 g P m−2 and 318–431 g C m−2 per year. The harvest from the SL CFW dominated by Phragmites contained a two‐times higher amount of nutrients, the respective figures being 21.2 g N m−2, 1.6 g P m−2 and 704 g C m−2. The nutrient stoichiometry in the vegetation did not suggest the presence of sub‐optimal growth conditions due to nitrogen limitation. However, the CL's dissolved nutrient supply was very low during the summer cyanobacteria bloom and indicated a severe nitrogen deficiency (as reflected in the dissolved inorganic nitrogen:dissolved inorganic phosphorus [DIN:DIP] molar ratio of 6). We suggest that to maximise nutrient removal capacity, tall plants with high biomass should be selected and/or plants with fine root systems to efficiently uptake the limiting nutrient from the water.

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Treatment performances of floating wetlands: A decade of studies in North Italy

Cited by 30 publications

References 87 publications

Implementation of an Integrated Floating Wetland and Biofilter for Water Treatment in Nile Tilapia Aquaculture

Implementation of an Integrated Floating Wetland and Biofilter for Water Treatment in Nile Tilapia Aquaculture

Towards Effective, Sustainable Solution for Hospital Wastewater Treatment to Cope with the Post-Pandemic Era

An assessment of nutrient removal by harvesting constructed floating wetlands in two coastal lagoons in the SE Baltic Sea

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