Salt Contaminated Water Phytotreatment by Constructed Wetland

Morteau, B.

doi:10.1007/978-3-319-27093-7_14

Cited by 8 publications

(2 citation statements)

References 53 publications

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“…The result showed that in one season, Atriplex accumulated an average of 300 kg/ha of Na + and Cl À (Silva et al 2016). It is reported that Salicornia europaea species accumulate about 139 g of Na + /kg dry weight and up to 180 g of Cl/kg dry weight (Morteau 2016). Recently, Rao et al (2017) tested four halophytic perennial forage grass species, namely, Distichlis spicata, Paspalum vaginatum, Sporobolus virginicus, and S. arabicus, for their growth in three saltdegraded and abandoned farms in the United Arab Emirates (UAE).…”

Section: Success Stories: Phytodesalination and Bio-saline Agriculturementioning

confidence: 97%

Halophytes as a Potential Resource for Phytodesalination

Saddhe¹,

Manuka²,

Nikalje³

et al. 2020

Handbook of Halophytes

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Section: Success Stories: Phytodesalination and Bio-saline Agriculturementioning

confidence: 97%

Halophytes as a Potential Resource for Phytodesalination

Saddhe¹,

Manuka²,

Nikalje³

et al. 2020

Handbook of Halophytes

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“…On the other hand, Eichhornia crassipes was able to reduce by 70% the Na + content in domestic sewage having an initial concentration of 2.3 mg Na + L -1 (Ajibade et al, 2013), while the removal efficiency was 9% for kitchen wastewater having an initial concentration of 17 mg Na + L -1 (Parwin and Paul, 2019). The use of hybrid wetland systems combined with large areas of macrophytes having a high potential to accumulate Na + (e.g., T. latifolia up to 8.2 g Na + kg -1 dry weight accumulated in biomass, Atriplex prostrate up to 21 g Na + kg -1 dry weight and Salicornia europaea up to 38 g Na + kg -1 dry weight) could then be a sustainable approach to remove the Na + content occurring in the nutrient solution of closed growing systems (Morteau, 2016).…”

Section: Phosphate and Others Element Removalmentioning

confidence: 99%

Type of constructed wetlands influence nutrient removal and nitrous oxide emissions from greenhouse wastewater

Lévesque¹,

Antoun²,

Rochette³

et al. 2020

Europ.J.Hortic.Sci

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In the current study, three constructed wetlands (CWs) were tested as a sustainable method of treating highly ion charged greenhouse wastewater before disposal. Because of their anaerobic conditions, it was hypothesized that free water surface flow (FWS) and horizontal-subsurface flow (HSS) CWs would be more efficient at removing NO 3 and SO 4 2from greenhouse wastewater than the vertical-flow (VSS) CW, but that FWS and HSS would emit more greenhouse gases. To test this hypothesis and propose the most sustainable CW for the greenhouse industry, this study compared three types of CWs (FWS, HSS and VSS) for their nutrient removal performance and nitrous oxide (N 2 O) emissions. The experiment was conducted in a greenhouse and consisted of 36 wetland units (12 replicates) of 0.8 m 3 operated with reconstituted greenhouse wastewater enriched with sucrose (C:N ratio of 2.9) at a 10-day hydraulic retention time, corresponding to the effluent loading rate coming from commercial greenhouse vegetable crops. The CWs were filled with water (FWS), gravel (HSS), or sand (VSS) and planted with Eichhornia crassipes (FWS) or Typha latifolia (HSS, VSS), two macrophytes largely used to treat wastewaters heavily loaded in nutriment. Results showed that HSS performed better than the FWS and VSS at reducing pollutants from the greenhouse wastewater, with 45% total N load removed. Although 59% of the NO 3-N load was removed in the FWS and HSS, a high accumulation of NO 2-(1.28 g N m-2 d-1) occurred in FWS. The removal of ammonium (NH 4-N) (~26%) loadings was similar in all CWs. Only 4% of the SO 4-S load was removed in the FWS and HSS, and no SO 4-S reduction was observed in VSS. Mean cumulative N 2 O emissions were 7 and 59 times higher in FWS (1.59 g m-2 d-1) than in HSS and VSS, respectively. Although VSS emitted less N 2 O than the other CWs tested in this study, HSS was the best option in terms of reducing CO 2 emissions and nutrient pollutants from greenhouse wastewater before disposal.

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