Results 91 to 100 of about 6,176 (256)

Effect of Kaolin particle size on the removal of Pb(II) from aqueous solutions by Kaolin-supported nanoscale zero-valent iron

open access: yesMaterials Research Express, 2020
The removal of Pb(II) from aqueous solutions was investigated using kaolin with two different particle sizes (2.3 and 45 μ m) with and without nanoscale zero-valent iron (nZVI, at a Fe content close to 30%).
Shang-Qun Li   +4 more
doaj   +1 more source

Uranium Removal from Groundwater and Wastewater Using Clay-Supported Nanoscale Zero-Valent Iron

open access: yesMetals, 2020
The peculiarities of sorption removal of uranium (VI) compounds from the surface and mineralized groundwater using clay-supported nanoscale zero-valent iron (nZVI) composite materials are studied.
Borys Kornilovych   +3 more
doaj   +1 more source

Size‐Dependent Catalysis in Fenton‐like Chemistry: From Nanoparticles to Single Atoms

open access: yesAdvanced Materials, Volume 36, Issue 28, July 11, 2024.
The article explores catalyst size evolution in Fenton‐like reactions from nano to atomic scale. The review comprehensively discusses advanced characterization techniques and theoretical calculations for evaluating catalyst properties and reaction mechanisms.
Jirui Guo   +6 more
wiley   +1 more source

Removal of Hexavalent Chromium Using Nanoscale Zero-Valent Iron Stabilized by Poly (?-Glutamic Acid)

open access: yesChemical Engineering Transactions, 2020
Hexavalent chromium (Cr(VI)) is one of the most toxic components in heavy metal pollution. The reduction of highly toxic Cr(VI) into much less toxic trivalent chromium (Cr(III)) is a promising and common method of remediating Cr(VI) contamination ...
Chao Zhang   +5 more
doaj   +1 more source

Removal of Arsenic (III, V) from aqueous solution by nanoscale zero-valent iron stabilized with starch and carboxymethyl cellulose [PDF]

open access: yes, 2014
In this work, synthetic nanoscale zerovalent iron (NZVI) stabilized with two polymers, Starch and Carboxymethyl cellulose (CMC) were examined and compared for their ability in removing As (III) and As (V) from aqueous solutions as the most promising iron
Ahmad Hashemi   +4 more
core   +1 more source

Bioremediation of Chlorate and Chromium in Soil Columns Using Contaminated Site Native Culture

open access: yesGroundwater Monitoring &Remediation, Volume 44, Issue 2, Page 62-71, Spring 2024.
Abstract Chlorate and hexavalent chromium (chromate) are both widely used in different industries, and the improper waste management in the past left many sites with elevated concentrations in groundwater that pose potential risk to human and/or ecological health.
Mehdi Motevasselin   +4 more
wiley   +1 more source

Application of nanoscale zero-valent iron in hexavalent chromium-contaminated soil: A review

open access: yesNanotechnology Reviews, 2020
Chromium (Cr) is a common toxic heavy metal that is widely used in all kinds of industries, causing a series of environmental problems. Nanoscale zero- valent iron (nZVI) is considered to be an ideal remediation material for contaminated soil, especially
Chen Xilu   +4 more
doaj   +1 more source

Continuum-based models and concepts for the transport of nanoparticles in saturated porous media: A state-of-the-science review [PDF]

open access: yes, 2017
Environmental applications of nanoparticles (NP) increasingly result in widespread NP distribution within porous media where they are subject to various concurrent transport mechanisms including irreversible deposition, attachment/detachment (equilibrium
Abdel-Salam   +395 more
core   +2 more sources

Transport and Retention of High Concentrated Nano-Fe/Cu Particles Through Highly Flow-Rated Packed Sand Column [PDF]

open access: yes, 2013
The design of an efficient field-scale remediation based on the use of nanoscale zero valent iron (NZVI) requires an accurate assessment of the mobility of such particles in saturated porous media, both during injection in the subsurface (short-term ...
Bear   +59 more
core   +1 more source

Assessing the aggregation behaviour of iron oxide nanoparticles under relevant environmental conditions using a multi-method approach [PDF]

open access: yes, 2013
Iron nanoparticles are becoming increasingly popular for the treatment of contaminated soil and groundwater; however, their mobility and reactivity in subsurface environments are significantly affected by their tendency to aggregate.
Chekli, L   +5 more
core   +1 more source

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