Does the combination of two plant species improve removal efficiency in treatment wetlands?

Rodríguez, Mariana; Brisson, Jacques

doi:10.1016/j.ecoleng.2016.02.047

Cited by 30 publications

(13 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…coli removal efficiencies whilst the polyculture system planted with warm and cool season Graminae species was more efficient in terms of dissolved organic compound removal. These results differed from those found by other authors [44–46] who investigated monoculture and polyculture wetlands planted with a number of different plant species ( Canna indica L., Cyperus papyrus L., P . australis L., Phalaris arundinacea L., T .…”

Section: Resultscontrasting

confidence: 99%

Research focusing on plant performance in constructed wetlands and agronomic application of treated wastewater – A set of experimental studies in Sicily (Italy)

et al. 2019

View full text Add to dashboard Cite

Constructed wetlands are sustainable technologies for the treatment of wastewater. These biological systems have been widely studied throughout the world for more than 30 years; however, most studies have focused on the effects of design and engineering on pollutant removal from wastewater. Undoubtedly, agro-technical aspects have been given too little consideration by research. This paper reports the main results of a set of experiments carried out on two pilot horizontal subsurface flow systems in Sicily (Italy). Festuca , Lolium and Pennisetum spp. in combination and three emergent macrophytes– Arundo donax L., Cyperus alternifolius L. and Typha latifolia L.–alone, were assessed. The aim of the study was to demonstrate that, under predetermined hydraulic and design conditions, the choice of plant species and the management of the vegetation can significantly affect the pollutant removal performance of constructed wetlands. In addition, wastewater (after treatment) can also be used for agricultural purposes leading to increased sustainability in agricultural systems. Arundo and Typha -planted units performed better than Cyperus -planted units in terms of chemical, physical and microbiological contaminant removal. All the species adapted extremely well to wetland conditions. Polyculture systems were found to be more efficient than monocultures in the removal of dissolved organic compounds. The reuse of treated wastewater for the irrigation of open fields and horticultural crops led to significant savings in the use of freshwater and fertilizers. The results of physical-energy characterization of A . donax above-ground plant residues and pellets highlighted the fact that a constructed wetland could also be a potential source of bioenergy.

show abstract

Section: Resultscontrasting

confidence: 99%

Research focusing on plant performance in constructed wetlands and agronomic application of treated wastewater – A set of experimental studies in Sicily (Italy)

et al. 2019

View full text Add to dashboard Cite

show abstract

“…For example, in one experiment with two species, we showed that combining both species would not improve treatment efficiency for any pollutant taken individually; i.e., the best monoculture was always as efficient as or more efficient at removal than the combination of two plant species. However, combining both plant species represented the best trade‐off between overall high pollutant removal and low nitrate levels in the effluent (Rodriguez and Brisson ). These results raise the more general, yet understudied, question of how plant diversity may simultaneously affect several ecological functions, the so‐called “ecosystem multi‐functionality” (Hector and Bagchi , Gamfeldt et al.…”

Section: Discussionmentioning

confidence: 99%

“…, Rheault et al. , Rodriguez and Brisson ). Complementarity in resource uses between species may result in increased nutrient uptake and water treatment efficiency (Fraser et al.…”

Section: Introductionmentioning

confidence: 98%

See 1 more Smart Citation

Plant diversity effect on water quality in wetlands: a meta‐analysis based on experimental systems

Brisson

Rodríguez

Martin

et al. 2020

Ecological Applications

Self Cite

View full text Add to dashboard Cite

Citation: Brisson, J., M. Rodriguez, C. A. Martin, and R. Proulx. 2020. Plant diversity effect on water quality in wetlands: a meta-analysis based on experimental systems. Ecological Applications 30(4):Note: -, no residual deviance. FIG. 4. Response ratios and 95% confidence intervals of the removal efficiency of mixtures relative to the best monocultures for total nitrogen (TN) and chemical oxygen demand (COD).

show abstract

“…In relation to this, Vymazal [13] describes the regular use of proliferative plants, such as those of the genera Typha, Scirpus, Phragmites, Juncus, and Eleocharis, which are usually planted as monocultures. Monocultures, especially of exotic invasive species, might represent a risk for the conservation of natural biodiversity of aquatic ecosystems downstream, but also misprizes the potential functional complementarity of combining the different plant species [14]. Moreover, some authors pointed out the suitability of using wild plant species for the treatment of effluents in constructed wetlands [15], an issue that had not been sufficiently addressed so far.…”

Section: Introductionmentioning

confidence: 99%

Serial Use of Helosciadum nodiflorum and Typha latifolia in Mediterranean Constructed Wetlands to Naturalize Effluents of Wastewater Treatment Plants

Camacho

Picazo

Rochera

et al. 2018

Water

View full text Add to dashboard Cite

Constructed wetlands are commonly used for sewage treatment. However, as the natural processes operate, these artificial ecosystems can also be used to enhance the equalization of water features to those of the receiving environments, thus reducing the impacts of the treated water on the natural systems. Here, we studied, by a year-round survey, the simultaneous and separated operation of two subsurface wetlands that were used as a tertiary treatment to enhance the naturalization of wastewaters that had already been treated in a waste water treatment plant (WWTP). These wetlands were operating serially, with the first wetland being covered by the riparian plant Helosciadum nodiflorum, which has not been described so far as being used in treatment wetland, whereas the second was covered by Typha latifolia. The changes in the concentrations and transformation among the different types of pollutants and other physical and chemical parameters, as well as in the bacterial abundance and activity, were studied under different operational conditions of serial cooperation or of separately-operating wetlands. Both wetlands were differentially efficient in the reduction and transformation of the remaining pollutants, with very active nitrification and denitrification processes, which reduced the ammonium concentrations by more than 65%, although they changed according to the operational status of each wetland. They also reduced the already low organic matter contents by around 30% and promoted slight shifts in the dominant types of dissolved organic matter to less labile compounds. To a certain extent, the Typha-covered wetland also contributed to phosphorus removal, by up to 35%. Noticeably, both of the wetlands contributed greatly to the reduction of bacterial abundance, which was even 50% lower after the wetland transit, although the resulting community increased its activity, thus keeping the capacity for pollutant removal and transformation. Overall, the wetlands' operation increased the similarity between the poured waters and those of the receiving stream, thus diminishing its environmental impact.

show abstract

Does the combination of two plant species improve removal efficiency in treatment wetlands?

Cited by 30 publications

References 25 publications

Research focusing on plant performance in constructed wetlands and agronomic application of treated wastewater – A set of experimental studies in Sicily (Italy)

Research focusing on plant performance in constructed wetlands and agronomic application of treated wastewater – A set of experimental studies in Sicily (Italy)

Plant diversity effect on water quality in wetlands: a meta‐analysis based on experimental systems

Serial Use of Helosciadum nodiflorum and Typha latifolia in Mediterranean Constructed Wetlands to Naturalize Effluents of Wastewater Treatment Plants

Contact Info

Product

Resources

About