Results 181 to 190 of about 6,300 (208)
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Journal of Environmental Management, 2020
Antibiotics, one of the most abundant contaminants in the natural water systems possess various difficulties to remediate through conventional water treatment methods. Tetracycline (TC) remains one of the most widely used antibiotics for human and veterinary applications because of its broad-spectrum antibacterial activity.
Geetha Gopal +3 more
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Antibiotics, one of the most abundant contaminants in the natural water systems possess various difficulties to remediate through conventional water treatment methods. Tetracycline (TC) remains one of the most widely used antibiotics for human and veterinary applications because of its broad-spectrum antibacterial activity.
Geetha Gopal +3 more
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Biochar-supported nZVI (nZVI/BC) for contaminant removal from soil and water: A critical review
Journal of Hazardous Materials, 2019The promising characteristics of nanoscale zero-valent iron (nZVI) have not been fully exploited owing to intrinsic limitations. Carbon-enriched biochar (BC) has been widely used to overcome the limitations of nZVI and improve its reaction with environmental pollutants. This work reviews the preparation of nZVI/BC nanocomposites; the effects of BC as a
Shengsen Wang +12 more
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Sulfide-Modified NZVI (S-NZVI): Synthesis, Characterization, and Reactivity
2019Sulfide-modified nanoscale zerovalent iron (S-NZVI) is attracting more and more attention due to its ease of production, improved reactivity with various pollutants (e.g., trichloroethene, diclofenac, cadmium, chromate), and most importantly, the selectivity to pollutants over water.
Yiming Su +3 more
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Environmental Science & Technology, 2018
The mechanisms involved in the activation of persulfate by nanosized zero-valent iron (NZVI) were elucidated and the NZVI transformation products identified. Two distinct reaction stages, in terms of the kinetics and radical formation mechanism, were found when phenol was oxidized by the persulfate/NZVI system. In the initial stage, lasting 10 min, Fe0(
Cheolyong Kim +4 more
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The mechanisms involved in the activation of persulfate by nanosized zero-valent iron (NZVI) were elucidated and the NZVI transformation products identified. Two distinct reaction stages, in terms of the kinetics and radical formation mechanism, were found when phenol was oxidized by the persulfate/NZVI system. In the initial stage, lasting 10 min, Fe0(
Cheolyong Kim +4 more
openaire +2 more sources
Arsenic and chromium removal using nZVI particles and porous PLA/nZVI composites
Environmental resources, sustainable development and food production – OPORPH 2023: Book of Abstracts, 2023Heavy metal pollution poses a great threat for the environment, especially for various bodies of water. Since certain industries produce heavy metals as a byproduct methods for their removal from industrial wastewaters are of huge importance. These inorganic pollutants are very dangerous for living organisms, effecting biological functions and causing ...
Špoljarić, Andrea +2 more
openaire
Using nZVI particles and hydrogel incorporated nZVI for amoxicillin removal
2023Antibiotics have become a great environmental issue of modern world. Their concentrations are gradually rising in wastewater and ground water where they are imposing a risk for aquatic and terrestrial organisms. Various methods for pharmaceutical wastewater treatment including adsorption, filtration and advanced oxidation processes (AOP) have already ...
Špoljarić, Andrea, Vidović, Elvira
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NZVI Synthesis and Characterization
2019This chapter provides an overview of NZVI types used to date for environmental restoration. The particle types are introduced systematically from bare NZVI to the manifold modifications leading to NZVI-containing composites or emulsions. Properties of these NZVI types which are important for the intended use as water treatment reagent and methods for ...
Katrin Mackenzie, Anett Georgi
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nZVI decreases N2O emission from pesticide-contaminated paddy soil
Science of The Total Environment, 2023The abundance and speciation of iron in farmland soils may affect the environmental fate of residual pesticides and their effects on soil N-cycling, which remains unclear. Herein, the roles of nanoscale zero-valent iron (nZVI) and iron oxidates (α-Fe2O3, γ-Fe2O3, and Fe3O4) as exogenous iron in reducing the adverse effect of pesticide pollution on soil
Gangping, Su +5 more
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Korean Journal of Chemical Engineering, 2018
Photocatalytic degradation of 4-chlrophenol (4-CP) using UVA-LED assisted persulfate and hydrogen peroxide activated by the nZVI (Nano Zero Valent Iron) in a batch photocatalytic reactor was investigated. The reaction involved a lab-scale photoreactor irradiated with UVA-LED light emitted at 390 nm.
Abdolmotaleb Seidmohammadi +4 more
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Photocatalytic degradation of 4-chlrophenol (4-CP) using UVA-LED assisted persulfate and hydrogen peroxide activated by the nZVI (Nano Zero Valent Iron) in a batch photocatalytic reactor was investigated. The reaction involved a lab-scale photoreactor irradiated with UVA-LED light emitted at 390 nm.
Abdolmotaleb Seidmohammadi +4 more
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Microbial Perspective of NZVI Applications
2019Nanoscale zero-valent iron (NZVI), due to its small size and high reactivity, is regarded as a promising alternative especially for in situ environmental remediation. There has already been a number of successful in situ contaminant removal/remediation using NZVI.
Panaya Kotchaplai +2 more
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