The contribution of plant uptake to nutrient removal by floating treatment wetlands

Keizer-Vlek, H.E.; Verdonschot, P.F.M.; Verdonschot, Ralf; Dekkers, Dorine

doi:10.1016/j.ecoleng.2014.09.081

Cited by 140 publications

(71 citation statements)

References 21 publications

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“…In the real conditions, the results will also be affected by many external impacts and input factors. According to the results of Keizer-Vlek et al (2014), CFWs have potential to remove up to 92 % of P tot , or even 98.5 % (Sooknah and Wilkie, 2004). Also positive influence of CFWs on other studied parameters (pH, turbidity, …), implying water quality, is confirmed by many authors (e.g.…”

Section: Discussionsupporting

confidence: 56%

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Possibilities of Small Water Reservoir Impact Improvement on Surface Water Quality in Agricultural Landscape

Dunajský¹,

Němcová²,

Konečná³

et al. 2018

Acta Univ. Agric. Silvic. Mendelianae Brun.

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In the Czech Republic, a significant amount of agricultural landscape nutrients is swept away by surface washes and leakages to subsoil. Subsequently there is a negative influence on surface water quality, where of course also point sources of pollution participate in. Flowing surface water often becomes stagnant while the certain self-purifying processes proceed both in the flowing and stagnant waters. It can be simultaneously stated that the self-purifying process is practically uncontrollable, primarily due to the impact of many entering factors. One of the environmental and technical elements providing quality improvement of water running off a water reservoir is deployment of constructed floating wetlands (CFW). The theoretical background, as well as the laboratory measurements carried out on the test land of the Brno University of Technology in experimental tanks, evidence the significant treatment efficiency of the CFW. Within the research activities, we focused on the general pollution parameters set for surface waters. The first results show that the total phosphorus concentration removal efficiency is 38.8 % after 22 days with employment of the CFW which is a considerably higher value compared to the lysimeter with no CFW where the removal efficiency was only 4.37 %. The results can be large-scale applied to most of the small water reservoirs situated in the agricultural landscape.

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Section: Discussionsupporting

confidence: 56%

“…The lowest efficiency of the P tot removal between 8 and 15 % was published for instance by (Yang et al, 2008). But incomparably more positive values of 92 % were reached by the authors (Keizer-Vlek et al, 2014) or 82 -98.5 % by (Sooknah and Wilkie, 2004).…”

Section: Theoretical Backgroundmentioning

confidence: 96%

Possibilities of Small Water Reservoir Impact Improvement on Surface Water Quality in Agricultural Landscape

Dunajský¹,

Němcová²,

Konečná³

et al. 2018

Acta Univ. Agric. Silvic. Mendelianae Brun.

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“…The plants used in a FTB can usually grow rapidly in nutrient-laden waters and assimilate nutrients from water with their strong roots (Keizer-Vlek et al, 2014;Li et al, 2009). Moreover, the plants in FTBs can be used as animal and human food, bio-fertilizer and for aesthetic purposes (Li et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

“…Planted floating treatment bed (FTB) is an innovative technique adapted from conventional wetlands, in which aquatic or terrestrial plants are grown in a hydroponic floating mass on the surface of waters, such as rivers and lakes (Bu and Xu, 2013;Hu et al, 2010;Keizer-Vlek et al, 2014). The plants used in a FTB can usually grow rapidly in nutrient-laden waters and assimilate nutrients from water with their strong roots (Keizer-Vlek et al, 2014;Li et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

“…For a single ecosystem with only plants, there are diverse nitrogen removal mechanisms including assimilation by plant root and the associated denitrification (Hallin et al, 2015;Hu et al, 2010;Keizer-Vlek et al, 2014). For periphyton, various processes including nitrification-denitrification and ammonification exist in nitrogen removal as well (Wu et al, 2014).…”

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confidence: 99%

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Nutrient removal by up-scaling a hybrid floating treatment bed (HFTB) using plant and periphyton: From laboratory tank to polluted river

Liu

Wang

Liu

et al. 2016

Bioresource Technology

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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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The contribution of plant uptake to nutrient removal by floating treatment wetlands

Cited by 140 publications

References 21 publications

Possibilities of Small Water Reservoir Impact Improvement on Surface Water Quality in Agricultural Landscape

Possibilities of Small Water Reservoir Impact Improvement on Surface Water Quality in Agricultural Landscape

Nutrient removal by up-scaling a hybrid floating treatment bed (HFTB) using plant and periphyton: From laboratory tank to polluted river

Floating Wetlands: A Sustainable Tool for Wastewater Treatment

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