Floating treatment wetlands for heavy metal removal in highway stormwater ponds

Ladislas, Séverine; Gérente, Claire; Chazarenc, Florent; Brisson, Jacques; Andrès, Yves

doi:10.1016/j.ecoleng.2014.09.115

Cited by 93 publications

(56 citation statements)

References 19 publications

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“…Likewise, a pond with floating plant mats showed 41% more reduction in TSS than a pond without any FTW system . The average TSS removal rates in many earlier studies were reported between 2.7 and 7.1 g m −2 per day with a highest removal rate of 45 g m −2 per day . Besides entrapment, role of microbial community is evident only when a major portion of suspended solid is organic …”

Section: Pollutants Removal Mechanismmentioning

confidence: 85%

Floating Wetlands: A Sustainable Tool for Wastewater Treatment

Shahid

Arslan

Ali

et al. 2018

CLEAN Soil Air Water

102

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Floating treatment wetland (FTW) is an effective and sustainable technology for wastewater treatment. It has been widely adopted for treating various kinds of polluted water including agricultural runoff, stormwater, industrial effluents, etc. In FTWs, plants are vegetated on a floating mat while their roots are extended down to the contaminated water hence acting as biological filters. Nutrients and potentially toxic metal(s)/element(s) are taken up from the wastewater by plants through their roots whereas organic matter is degraded by the microorganisms forming biofilms on the roots and mat surface. Additionally, organic contaminants which are already taken up by the plants are degraded by endophytic bacteria in planta. This article provides an overview of FTWs and their application for wastewater treatment. The key factors which have an impact on the performance of FTWs are also described. Lastly, the potential role of combined use of plants and bacteria in FTWs for the maximum remediation of polluted water is emphasized.

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Section: Pollutants Removal Mechanismmentioning

confidence: 85%

Floating Wetlands: A Sustainable Tool for Wastewater Treatment

Shahid

Arslan

Ali

et al. 2018

CLEAN Soil Air Water

102

View full text Add to dashboard Cite

show abstract

“…Accordingly, the lower redox conditions and slightly higher organic loading of a wetland receiving the effluent of an HUSB reactor resulted in CH 4 emissions twelve times higher than those of the wetland fed with primary settled wastewater. Ladislas et al (2015) investigated the efficiency of a floating treatment wetland (basin surface 375 m 2 ) for removing dissolved metals from stormwater runoff from a section of highway (27,000 vehicles d À1 ) in northeast Nantes, France. Three floating marshes were anchored in the retention pond, each raft with a surface area of 1.5 m 2 supporting Juncus and Carex plants.…”

Section: This Special Issuementioning

confidence: 99%

Wetland pollutant dynamics and control

Mander

Chazarenc

2015

Ecological Engineering

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“…In response to the rapid increase in the number of vehicles in the world, an increasing amount of surface water and soil near highways is contaminated by road transport pollution via highway runoff (Viard, Pihan, Promeyrat, & Pihan, ). As one of the most common sources of pollution, highway stormwater runoff typically contains heavy metals (i.e., copper (Cu), lead (Pb), zinc (Zn), chromium (Cr), cadmium (Cd), nickel (Ni), and iron (Fe)) and nutrients (nitrogen (N), phosphorus (P), and potassium (K)), all of which are discharged into the natural surface, where they impair both ecosystems and human health (Huang, Pedersen, Fischer, Richard White, & Young, ; Kasaraneni, Schifman, Boving, & Oyanedelcraver, ; Ladislas, Gérente, Chazarenc, Brisson, & Andrès, ; Terzakis et al, ). The presence of different heavy metal species in highway stormwater runoff can mainly be attributed to both automobile‐use activities and industrial activities, and particularly prevalent sources are the disintegration of vehicle brakes and tires as well as atmospheric deposition (Gunawardana, Goonetilleke, & Egodawatta, ; Zhao, Li, & Wang, ).…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of various wetland vegetation species on mitigating water pollution from highway runoff

Luo

Sun

Zhang

2019

Water Environment Research

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This study selected and tested five submerged aquatic vegetation‐based (SAV) wetlands to improve highway runoff treatment in best management practices. The removal efficiencies of suspended solid (SS), chemical oxygen demand (COD), total nitrogen (TN), ammonia nitrogen (NH4+-N), and total phosphorus (TP) in the five SAV wetlands were analyzed. Furthermore, the lead (Pb) and zinc (Zn) accumulation capabilities of five submerged macrophytes were determined. The obtained results show that Ceratophyllum demersum wetlands achieved the highest nutrient removal and had the heavy metal accumulation property. Vallisneria natans showed the highest bioaccumulation of Pb among all tested species. Ceratophyllum demersum wetlands showed the highest average removal efficiencies of SS (82.97%), COD (62.08%), TN (77.63%), NH4+-N (76.24%), TP (77.55%), Pb (96.24%), and Zn (91.23%). The tendencies of contaminant removal showed seasonal variation, and SAV wetlands performed better in summer than in spring and autumn. Consequently, SAV wetlands showed selectivity for contaminant removal. Practitioner points Chemical oxygen demand (COD), total nitrogen (TN), and total phosphorus (TP) in highway runoff were removed by submerged aquatic vegetation (SAV). Ceratophyllum demersum and Myriophyllum spicatum wetlands performed well on heavy metal removing. Ceratophyllum demersum showed the highest removal efficiencies of TSS, COD, TN, NH4+-N, and TP. The SAV wetlands performed better in summer than in other seasons.

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Floating treatment wetlands for heavy metal removal in highway stormwater ponds

Cited by 93 publications

References 19 publications

Floating Wetlands: A Sustainable Tool for Wastewater Treatment

Floating Wetlands: A Sustainable Tool for Wastewater Treatment

Wetland pollutant dynamics and control

Effectiveness of various wetland vegetation species on mitigating water pollution from highway runoff

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