A review on the application of constructed wetlands for the removal of priority substances and contaminants of emerging concern listed in recently launched EU legislation

Gorito, Ana M.; Ribeiro, Ana R.; Almeida, C. Marisa R.; Silva, Adrián M.T.

doi:10.1016/j.envpol.2017.04.060

Cited by 210 publications

(97 citation statements)

References 168 publications

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“…Removal of different heavy metals along with other contaminants through the application of aquatic plants is the most proficient and profitable method [52,119]. Constructed wetlands along with aquatic plants were extensively applied throughout the world for the treatment of wastewater [120,121]. The selection of aquatic plant species for the accumulation of heavy metal is a very important matter to enhance the phytoremediation [71,122].…”

Section: Aquatic Plants and Phytoremediationmentioning

confidence: 99%

“…Over the years, aquatic plants have gained an overwhelming reputation because of their capacity to clean up contaminated sites throughout the world [120,123]. Aquatic plants always develop an extensive system of roots which helps them and makes them the best option for the accumulation of contaminants in their roots and shoots [124,125].…”

Section: Aquatic Plants and Phytoremediationmentioning

confidence: 99%

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Application of Floating Aquatic Plants in Phytoremediation of Heavy Metals Polluted Water: A Review

et al. 2020

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Heavy-metal (HM) pollution is considered a leading source of environmental contamination. Heavy-metal pollution in ground water poses a serious threat to human health and the aquatic ecosystem. Conventional treatment technologies to remove the pollutants from wastewater are usually costly, time-consuming, environmentally destructive, and mostly inefficient. Phytoremediation is a cost-effective green emerging technology with long-lasting applicability. The selection of plant species is the most significant aspect for successful phytoremediation. Aquatic plants hold steep efficiency for the removal of organic and inorganic pollutants. Water hyacinth (Eichhornia crassipes), water lettuce (Pistia stratiotes) and Duck weed (Lemna minor) along with some other aquatic plants are prominent metal accumulator plants for the remediation of heavy-metal polluted water. The phytoremediation potential of the aquatic plant can be further enhanced by the application of innovative approaches in phytoremediation. A summarizing review regarding the use of aquatic plants in phytoremediation is gathered in order to present the broad applicability of phytoremediation.

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Section: Aquatic Plants and Phytoremediationmentioning

confidence: 99%

Section: Aquatic Plants and Phytoremediationmentioning

confidence: 99%

Application of Floating Aquatic Plants in Phytoremediation of Heavy Metals Polluted Water: A Review

et al. 2020

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“…In addition to the removal of traditional pollutants such as suspended solids, organic matter and nutrients (Zhang et al 2014a(Zhang et al , 2014bMachado et al 2017;Arden & Ma 2018), CWs are capable of removing organic and inorganic pollutants (Verlicchi & Zambello 2014;Krzeminski et al 2019). Among these, the removal of pesticides (Barceló & Petrovic 2008), heavy metals (Wang et al 2017), pharmaceuticals (Li et al 2014;Zhang et al 2014aZhang et al , 2014bIlyas & van Hullebusch 2019;Zraunig et al 2019) and various other contaminants of emerging concern (CEC) (Imfeld et al 2009;Matamoros et al 2010;Gorito et al 2017;Talib & Randhir 2017) have been explored in the last decade. The observed removal of heavy metals was between 23 and 97% depending on the heavy metal, CWs' type, type of water matrix and others (Malaviya & Singh 2012).…”

Section: Urban Water Pollution Control: Constructed Wetlandsmentioning

confidence: 99%

A review of nature-based solutions for urban water management in European circular cities: a critical assessment based on case studies and literature

et al. 2020

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Nature-based solutions (NBS) can protect, manage and restore natural or modified ecosystems. They are a multidisciplinary, integrated approach to address societal challenges and some natural hazards effectively and adaptively, simultaneously providing human well-being and biodiversity benefits. NBS applications can be easily noticed in circular cities, establishing an urban system that is regenerative and accessible. This paper aims to offer a review on NBS for urban water management from the literature and some relevant projects running within the COST Action ‘Implementing nature-based solutions for creating a resourceful circular city’. The method used in the study is based on a detailed tracking of specific keywords in the literature using Google Scholar, ResearchGate, Academia.edu, ScienceDirect and Scopus. Based on this review, three main applications were identified: (i) flood and drought protection; (ii) the water-food-energy nexus; and (iii) water purification. The paper shows that NBS provide additional benefits, such as improving water quality, increasing biodiversity, obtaining social co-benefits, improving urban microclimate, and the reduction of energy consumption by improving indoor climate. The paper concludes that a systemic change to NBS should be given a higher priority and be preferred over conventional water infrastructure.

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“…The removal of emerging organic contaminants (EOCs), including pharmaceuticals and personal care products (PPCPs), and other priority substances has also been lately explored, displaying a remarkable degradation capacity, mainly owed to the complex microbial interactions occurring within the bed media and the rhizosphere promoted by a large range of redox conditions [5][6][7][8]. However, more studies are still needed for a complete and thorough understanding of the behavior of these micropollutants in CW systems, which should also shed some light into the transformation pathways of these contaminants in treatment systems and the environment.…”

Section: Introductionmentioning

confidence: 99%

Removal of organic carbon, nitrogen, emerging contaminants and fluorescing organic matter in different constructed wetland configurations

Sgroi

Pelissari

Roccaro

et al. 2018

Chemical Engineering Journal

120

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The elimination of organic carbon, nitrogen, five emerging organic contaminants (EOCs) and fluorescence signature was evaluated in two treatment lines comprising different constructed wetland (CW) configurations: (i) partially saturated vertical subsurface flow (SVF) wetland (treatment line 1) and (ii) unsaturated vertical subsurface flow (UVF), horizontal subsurface flow (HF) and free water surface (FWS) wetlands in series (treatment line 2). Results showed important differences between the different CW configurations. The highest removal of BOD5 (81%), COD (67%), TOC (72%) and fluorescing organic matter were observed in the UVF wetland, whereas the HF and FWS wetlands were the most efficient units for total nitrogen removal (60 and 69%, respectively).The SVF wetland showed a greater performance in the reduction of total nitrogen than the UVF bed (52 vs 35%). In addition, the SVF wetland exhibited a higher removal of the EOCs caffeine (95 vs 90%), trimethoprim (99 vs 87%) and sulfamethoxazole (64 vs 4%), as opposed to DEET (34 vs 63%), whose removal was superior in the UVF unit. Sucralose was negligibly removed in all the CWs. PARAFAC analysis of fluorescence measurements revealed that the proteinaceous tryptophan-like fluorescent component was the most highly removed one in all the investigated CWs (>28%) and, particularly, in the UVF wetland (66%), whereas humic and fulvic-like components resulted recalcitrant to decomposition. Increases of fluorescence intensities were often observed for fulvic-like substances in CWs operating with saturation of the bed, and these were particularly relevant in the SVF unit. Finally, important correlations (r>0.7) between the tryptophanlike fluorescent component and the water quality parameters COD and BOD5 suggest fluorescence spectroscopy as an useful monitoring tool for water treatment efficiency in CW systems.

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A review on the application of constructed wetlands for the removal of priority substances and contaminants of emerging concern listed in recently launched EU legislation

Cited by 210 publications

References 168 publications

Application of Floating Aquatic Plants in Phytoremediation of Heavy Metals Polluted Water: A Review

Application of Floating Aquatic Plants in Phytoremediation of Heavy Metals Polluted Water: A Review

A review of nature-based solutions for urban water management in European circular cities: a critical assessment based on case studies and literature

Removal of organic carbon, nitrogen, emerging contaminants and fluorescing organic matter in different constructed wetland configurations

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