Experimental designs of field-based constructed floating wetland studies: A review

Lucke, Terry; Walker, Chris; Beecham, Simon

doi:10.1016/j.scitotenv.2019.01.018

Cited by 74 publications

(54 citation statements)

References 34 publications

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“…Two grams of L. minor (Liu et al., 2018) were exposed to MB-contaminated water at room temperature (20 °C–25 °C) under white lamp light at the approximation of 10,000–25,000 lux (Al-Baldawi et al., 2018). The reactor was designed to replicate the floating treatment wetland under batch system reactor (Lucke et al., 2019). The researchers ensured that all plant roots reached the bottom of the reactor during the test to accommodate the root sorption capability and the rhizosphere removal mechanisms (Almuktar et al., 2018).…”

Section: Methodsmentioning

confidence: 99%

Phytoremediation of methylene blue using duckweed (Lemna minor)

Imron

Kurniawan²,

Soegianto

et al. 2019

Heliyon

100

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Azo dyes are the largest class of synthetic dyes and are utilized in several industries. Effluents containing dyes are released to the environment and pose harm to humans who might be exposed to these contaminants. This study aims to investigate the removal of methylene blue (MB) dye using duckweed (Lemna minor). L. minor (2 g) was exposed into 50 mg/L of MB dyes for 24 h. The absorbance values were measured at 0, 0.5, 1, 2, 3, 4, 5, 6, and 24 h with a maximum wavelength of 665 nm. The dye removal percentage and relative growth rate of L. minor during exposure to MB were observed. The removal percentage was 80.56 AE 0.44% for 24 h with a relative growth rate of 0.006/h. L. minor has potential as a phytoremediation agent to remove dyes from wastewater.

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Section: Methodsmentioning

confidence: 99%

Phytoremediation of methylene blue using duckweed (Lemna minor)

Imron

Kurniawan²,

Soegianto

et al. 2019

Heliyon

100

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“…However, this multi-stage process starts with biofilm formation [51]. Biofilm designation, in the context of FWI, is often attributed to the microbial development associated to the plant roots and its role on the water depurative process [7,52]. Therefore, both types of samples were considered.…”

Section: Assessment Of Microbial Diversity In the Fwi And Watermentioning

confidence: 99%

Floating Wetland Islands Implementation and Biodiversity Assessment in a Port Marina

Calheiros

Carecho

Tomasino

et al. 2020

Water

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Floating wetland islands (FWI) are considered nature-based solutions with great potential to promote several ecosystem services, such as biodiversity and water quality enhancement through phytoremediation processes. To our knowledge, the present work is the first to scientifically document the in-situ establishment of an FWI in a seawater port marina. The establishment and performance of a cork floating platform with a polyculture (Sarcocornia perennis, Juncus maritimus, Phragmites australis, Halimione portulacoides, Spartina maritima, Limonium vulgare) was evaluated. The diversity of organisms present in the FWI was undertaken based on the macrofauna assessment, taking into consideration marine water characterization, with a focus on hydrocarbons. Microbial communities were assessed based on metabarcoding approach to study 16S rRNA gene from environmental DNA retrieved from biofilm (from the planting media), marine biofouling (from the submerged platform) and surface marina water. S. perennis was the species with the highest survival rate and growth. The structure of the microbial community showed clear differences between those established in the FWI and those in the surrounding water, showing the presence of some bacterial groups that can be relevant for bioremediation processes (e.g., Saprospiraceae family). Concerning the macrofauna analysis, Mytilus sp. was the predominant taxa. To be of relevance, total petroleum hydrocarbons were detected at the marina up to ca. 6 mg/L. This study gives new insights into broadening FWI application to the saline environments of port marinas and to supporting a management strategy to promote several ecosystem services such biodiversity, species habitat, water quality enhancement and added aesthetic value to the marina landscape.

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“…Bi et al (2019) provided a broad overview of pollutant removal mechanisms and reported removal rates for a wide variety of compounds, and conclude that additional work is needed to understand how treatment efficiencies and other ecosystem effects mediated by FTWs may respond to changes in climate and pollutant delivery. Lucke, Walker, and Beecham (2019) presented a set of recommendations to improve robustness of experimental designs employed for monitoring the performance of FTW stormwater studies based on a review of eight existing field studies. These included designing monitoring studies as a before–after/control–treatment design; characterizing HRTs before and after FTWs are installed; quantifying nutrient uptake in plant biomass above and within the floating mat by sampling plant tissues at the start and end of each growing season; and arranging FTWs to minimize short‐circuiting.…”

Section: Constructed Stormwater Wetlandsmentioning

confidence: 99%

“…Clearly, there is still room to optimize or otherwise enhance the performance functions of CSWs. For example, incorporating baffles (Chai et al, 2019) or optimizing FTW placement (Lucke et al, 2019) to minimize short‐circuiting, and advancing understanding of vegetation and other wetland complexities on HRT distributions through advances in modeling (Sonnenwald et al, 2019) indicated these systems can be further optimized through engineering design. Additional understanding of the role of plant functional traits and survivability in CSWs, as well as their role in attracting animals and other biota and cycling carbon, can also lead to selection of optimal “planting pallets” to jump‐start the self‐organizing capabilities of CSWs.…”

Section: Constructed Stormwater Wetlandsmentioning

confidence: 99%

Urban stormwater characterization, control, and treatment

Rodak

Jayakaran

Moore

et al. 2020

Water Environment Research

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This review summarizes over 280 studies published in 2019 related to the characterization, control, and management of urban stormwater runoff. A summary of quantity and quality concerns is provided in the first section of the review, serving as the foundation for the following sections which focus on the control and treatment of stormwater runoff. Finally, the impact of stormwater control devices at the watershed scale is discussed. Each section provides a self-contained overview of the 2019 literature, common themes, and future work. Several themes emerged from the 2019 literature including exploration of substrate amendments for improved water quality effluent from stormwater controls, the continued study of the role of vegetation in green infrastructure practices, and a call to action for the development of new models which generate reliable, computationally efficient results under the physical, chemical, biological, and social complexity of stormwater management. © 2020 Water Environment Federation • Practitioner points • Over 280 studies were published in 2019 related to the characterization, control, and treatment of urban stormwater. • Studies on bioretention and general stormwater characteristics represented the two most common subtopics in 2019. • Trends in 2019 included novel substrate amendments, studies on the role of vegetation, and advancements in computational models.

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Experimental designs of field-based constructed floating wetland studies: A review

Cited by 74 publications

References 34 publications

Phytoremediation of methylene blue using duckweed (Lemna minor)

Phytoremediation of methylene blue using duckweed (Lemna minor)

Floating Wetland Islands Implementation and Biodiversity Assessment in a Port Marina

Urban stormwater characterization, control, and treatment

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