Removal of cesium, lead, nitrate and sodium from wastewater using hydroponic constructed wetland

Moogouei, Roxana; Chen, Y.

doi:10.1007/s13762-020-02627-x

Cited by 13 publications

(4 citation statements)

References 40 publications

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“…Constructed wetlands are a low-cost and environmentally friendly option for removing trace contaminants and improving water quality . There is a great deal of evidence in the literature demonstrating the efficacy of constructed wetlands in the removal of nutrients, trace elements, antibiotic resistance genes, and organic contaminants. ,− However, most recent studies have only considered vegetated wetlands where vegetative filtration, plant uptake, and enhanced degradation in the rhizosphere play significant roles in contaminant retention and attenuation . Vegetated wetlands have drawbacks such as the need to remove vegetation periodically to prevent overgrowth, clogging, channelization, accumulation, and decomposition of organic matter and strong seasonal performance dependence.…”

Section: Introductionmentioning

confidence: 99%

Removal of Urban-Use Insecticides in a Large Open-Water Wetland Pond

et al. 2022

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Worsening freshwater scarcity has heightened the need for treatment technologies capable of eliminating chemical and biological contaminants to allow for the beneficial use of traditionally underutilized water resources. In urbanized arid and semiarid regions such as California, urban drainage represents an increasingly important water source for augmenting water supply. However, monitoring shows that urban streams are contaminated ubiquitously with urban-use insecticides (e.g., pyrethroids and fipronil) that have broad-spectrum toxicity. In this study, a large open-water wetland pond (OWWP), characterized by shallow water depth and the absence of permanent vegetation, was evaluated for the removal of pyrethroids and fipronil (and its biologically active degradates). Concentration-based removal and changes in the pesticide mass flux were calculated to determine the efficacy of the OWWP. Toxic units for indicator aquatic invertebrates were estimated before and after the OWWP treatment to determine reductions in potential aquatic toxicity. Contaminant concentrations in water and sediment consistently decreased as the water was moving through the OWWP. Concentration-based removals were 44.2–100% for fipronil compounds, 61.8–100% for bifenthrin, and 47.3–92.7% for cyfluthrin, and the removal was attributed to sedimentation, in situ microbial degradation, and photolysis. The mitigation of these urban-use insecticides by the OWWP was similar to that of a densely vegetated constructed wetland at the same site. Therefore, OWWPs represent a low-maintenance and effective wetland configuration for large-scale water reclamation and may be particularly useful for arid and semiarid regions with favorable meteorological conditions (e.g., intense sunshine and high temperature).

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Section: Introductionmentioning

confidence: 99%

Removal of Urban-Use Insecticides in a Large Open-Water Wetland Pond

et al. 2022

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“…The present study particularly focused on Cs distribution in aquatic environments and accumulation by macrophytes for the development of water treatment technologies, including wetlands, ponds, hydroponics, and other approaches [13,16]. In 1993, the overall accumulation of Cs-137 by macrophytes in a small, drainless lake in Belarus constituted 5% of its stock in the lake's water mass [8].…”

Section: Introductionmentioning

confidence: 99%

Caesium-133 Accumulation by Freshwater Macrophytes: Partitioning of Translocated Ions and Enzyme Activity in Plants and Microorganisms

et al. 2022

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The potential of aquatic plants to accumulate Cs may be of notable importance in the environmental monitoring of radioactive wastes. This study aimed to evaluate the accumulation of Cs-133 by freshwater macrophytes Bacopa amplexicaulis, Elodea densa, Ceratophyllum submersum, and Limnobium laevigantum after a 10-day incubation period with CsCl (1–1000 μM). The partitioning of Cs and other elements, including 21 metals, such as P, B, and As, was analyzed using inductively coupled plasma mass spectrometry combined with principal component analysis (PCA). The enzymatic activity of plant crude extracts and aquatic microorganisms was characterized. The transfer factor (TF) reached the highest values of 0.13 and 0.10 for C. submersum and L. laevigantum, respectively, at 1000 μM Cs. The TFs in the other sets were below 0.1. In the presence of Cs-133, there was a significant increase in dehydrogenase activity (p < 0.05) and a decrease in the activity of the Folin–Ciocalteu assay. A three-fold decrease in culturable microorganisms was found in plants with 1000 μM Cs. PCA analysis revealed the species-specific elemental distribution in plant biomass and the aquatic phase. A negative correlation between Na, Ca (2.0–2.5, PC1) and Mg, K, and P (−2, PC1) was found. Certain enzyme groups can serve as bioindicators of Cs pollution in aquatic ecosystems.

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“…Phytoremediation has appeared as the most successful method of biological wastewater treatment (Kumar et al 2017;Eid et al 2019a, b;Kumar et al 2019a, b;Moogouei and Chen 2020). Recent developments in phytoremediation techniques give its wide scope in evacuating the hazardous elements from contaminated wastewaters and soils to plant biomass (Yadav et al 2018;Saxena et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Kinetics and prediction modeling of heavy metal phytoremediation from glass industry effluent by water hyacinth (Eichhornia crassipes)

Singh

Kumar

2021

Int. J. Environ. Sci. Technol.

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This study aimed to explore the effectiveness of water hyacinth (Eichhornia crassipes) for heavy metals reduction from highly toxic glass industry effluent. Based on a 40 days laboratory-scale experiment, a total of five diluted concentrations of glass industry effluent were selected to cultivate water hyacinth. Furthermore, the kinetics and prediction models were used to analyze the metals reduction data to understand the plant behavior during the phytoextraction of heavy metals. Results suggested that water hyacinth was capable to reduce Cd (91.30%), Cu (93.55%), Fe (92.81%), Mn (93.45%), Pb (89.66%), and Zn (94.44%) metals most efficiently in 25% glass industry effluent concentration, respectively. Moreover, the growth performance of the water hyacinth plant exhibited the maximum fresh plant biomass (254.90 ± 3.75 g), chlorophyll (3.53 ± 0.11 mgg −1 fwt.), and relative growth rate (0.0026 gg −1 d −1 ) using 25% dilution treatment, respectively. Additionally, the firstorder model gave the best fitting results in terms of the coefficient of determination (R 2 > 0.82) and rate constant (k > 0.023 mgL −1 d −1 ). Besides this, prediction modeling using multiple regression helped to construct mathematical equations to predict the heavy metals absorbed by water hyacinth plant tissues which were further supported by model efficiency (> 0.80) and normalized error tools (< 0.02). The results of this report are novel and have the utmost importance for the eco-friendly and sustainable treatment of glass industry effluent.

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Removal of cesium, lead, nitrate and sodium from wastewater using hydroponic constructed wetland

Cited by 13 publications

References 40 publications

Removal of Urban-Use Insecticides in a Large Open-Water Wetland Pond

Removal of Urban-Use Insecticides in a Large Open-Water Wetland Pond

Caesium-133 Accumulation by Freshwater Macrophytes: Partitioning of Translocated Ions and Enzyme Activity in Plants and Microorganisms

Kinetics and prediction modeling of heavy metal phytoremediation from glass industry effluent by water hyacinth (Eichhornia crassipes)

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