Phytoremediation of Soil Contaminated with Nickel by Lepidium sativum; Optimization by Response Surface methodology

doi:10.30955/gnj.000996

Cited by 15 publications

(1 citation statement)

References 25 publications

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“…Response Surface Methodology (RSM) is a collection of statistical techniques for designing experiments and consists of different stages such as evaluating the effects of variables and finding optimum conditions via generating response surfaces and contour plots 24 . RSM helps to examine the interactive effects between variables and to build a mathematical model that can represent the entire process under study 25 . The central composite design (CCD) is the most commonly used fractional factorial design used in the response surface model.…”

Section: Introductionmentioning

confidence: 99%

Operational parameters optimization for remediation of crude oil-polluted water in floating treatment wetlands using response surface methodology

Rehman

Arslan

Müller

et al. 2022

Sci Rep

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The application of floating treatment wetlands (FTWs) is an innovative nature-based solution for the remediation of polluted water. The rational improvement of water treatment via FTWs is typically based on multifactorial experiments which are labor-intensive and time-consuming. Here, we used the response surface methodology (RSM) for the optimization of FTW’s operational parameters for the remediation of water polluted by crude oil. The central composite design (CCD) of RSM was used to generate the experimental layout for testing the effect of the variables hydrocarbon, nutrient, and surfactant concentrations, aeration, and retention time on the hydrocarbon removal in 50 different FTW test systems planted with the common reed, Phragmites australis. The results from these FTW were used to formulate a mathematical model in which the computational data strongly correlated with the experimental results. The operational parameters were further optimized via modeling prediction plus experimental validation in test FTW systems. In the FTW with optimized parameters, there was a 95% attenuation of the hydrocarbon concentration, which was very close to the 98% attenuation predicted by the model. The cost-effectiveness ratio showed a reduction of the treatment cost up to $0.048/liter of wastewater. The approach showed that RSM is a useful strategy for designing FTW experiments and optimizing operational parameters.

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Section: Introductionmentioning

confidence: 99%

Operational parameters optimization for remediation of crude oil-polluted water in floating treatment wetlands using response surface methodology

Rehman

Arslan

Müller

et al. 2022

Sci Rep

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The influence of compost and nitrilotriacetic acid on mercury phytoextraction by Lepidium sativum L.

Smolińska

2019

J of Chemical Tech & Biotech

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BACKGROUND The investigations on enhanced phytoextraction are focused on both the influence of soil amendments on reclamation efficiency, and processes that occur in plant cells as its response to pollutants. The aim of the present study was to analyze the glutathione content (GSH) as a response of Lepidium sativum L. to substances used in assisted phytoextraction of mercury (Hg) contaminated soil. The simultaneous influence of compost from green wastes and nitrilotriacetic acid (NTA) on Hg accumulation and translocation was investigated. The study also focused on the Hg leaching after assisted phytoextraction. RESULTS The results of the study showed that application of compost and NTA increased Hg translocation to plant shoots over 128–154%. A corresponding increase of GSH was observed. Application of soil enhancements decreased the concentration of leached Hg (LHg) around 24% when compared to Hg treated soil. CONCLUSION Lepidium sativum L. showed the potential as a tolerant plant that can be used in biological soil reclamation process. Simultaneous application of compost and NTA promoted Hg phytoextraction efficiency and at the same time decreased the potential leachable fraction of Hg in soil. The increased Hg translocation to plant shoots was correlated with the growth of GSH content in plants, as a plant response to environmental conditions. © 2019 Society of Chemical Industry

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Heavy Metals Phytoremediation from Urban Waste Leachate by the Common Reed (Phragmites australis)

et al. 2015

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Phytoremediation of Soil Contaminated with Nickel by Lepidium sativum; Optimization by Response Surface methodology

Cited by 15 publications

References 25 publications

Operational parameters optimization for remediation of crude oil-polluted water in floating treatment wetlands using response surface methodology

Operational parameters optimization for remediation of crude oil-polluted water in floating treatment wetlands using response surface methodology

The influence of compost and nitrilotriacetic acid on mercury phytoextraction by Lepidium sativum L.

Heavy Metals Phytoremediation from Urban Waste Leachate by the Common Reed (Phragmites australis)

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