Results 31 to 40 of about 6,176 (256)

Competitive reaction modelling in aqueous systems. The case of contemporary reduction of dichromates and nitrates by nZVI [PDF]

open access: yes, 2017
In various Countries, Cr(VI) still represents one of the groundwater pollutant of major concern, mainly due to its high toxicity, furthermore enhanced by the synergic effect in presence of other contaminants.
Di Palma, Luca   +2 more
core   +1 more source

Chemical reduction of hexavalent chromium (VI) in soil slurry by nano zero valent iron [PDF]

open access: yes, 2015
The increasing industrial development of recent decades has lead to the production of increasing quantities of waste containing heavy metals, elements often harmful to the environment, which in the past were not properly disposed of, thus inducing soil
DI PALMA, Luca   +2 more
core   +1 more source

Activation process of air stable nanoscale zero-valent iron particles [PDF]

open access: yes, 2017
Nanoscale Zero Valent Iron (nZVI) represents a promising material for subsurface water remediation technology. However, dry, bare nZVI particles are highly reactive, being pyrophoric when they are in contact with air.
Benito Páramo, José Antonio   +4 more
core   +2 more sources

Integration of nanoscale zero-valent iron and functional anaerobic bacteria for groundwater remediation: A review

open access: yesEnvironment International, 2019
The technology of integrating nanoscale zero-valent iron (nZVI) and functional anaerobic bacteria has broad prospects for groundwater remediation. This review focuses on the interactions between nZVI and three kinds of functional anaerobic bacteria ...
Haoran Dong   +8 more
doaj   +1 more source

Effect of remediation of polychlorinated biphenyls (PCBs) contaminated soil by combined treatment of nanoscale zero-valent iron and PCBs-degrading strain

open access: yes浙江大学学报. 农业与生命科学版, 2023
Polychlorinated biphenyls (PCBs) are typical pollutants in soil. Nanoscale zero-valent iron (nZVI) can effectively dechlorinate high-chlorinated PCBs into low-chlorinated PCBs which can be more easily degraded by microorganisms.
SHAO Lyuyang, CHEN Xi, SHEN Chaofeng
doaj   +1 more source

Surface coating with Ca(OH)2 for improvement of the transport of nanoscale zero-valent iron (nZVI) in porous media [PDF]

open access: yes, 2013
A novel thermal deposition method was developed to coat Ca(OH)2 on the surface of nanoscale zero-valent iron (nZVI). The nZVI particles with the Ca(OH)2 coating layer, nZVI/Ca(OH)2, had a clear core-shell structure based on the transmission electron ...
Li, XY, Wei, CJ
core   +1 more source

Substantially enhanced anaerobic reduction of nitrobenzene by biochar stabilized sulfide-modified nanoscale zero-valent iron: Process and mechanisms

open access: yesEnvironment International, 2019
Nanoscale zero-valent iron (nZVI), although being increasingly used in anaerobic systems for strengthening the removal of various refractory pollutants, is limited by various inherent drawbacks, such as easy precipitation, passivation, poor mass and ...
Dejin Zhang   +8 more
doaj   +1 more source

Palygorskite-supported sulfide-modified nanoscale zero-valent iron for Congo red removal

open access: yesEnvironmental Pollutants & Bioavailability, 2019
In this work, the optimum conditions for the synthesis of nano zero valent iron sulfide were studied in detail using orthogonal experiment. The palygorskite-supported sulfide-modified nanoscale zero-valent iron (S-nZVI/P) was prepared, characterized, and ...
Guixiang Quan   +4 more
doaj   +1 more source

Improved longevity of nanoscale zero-valent iron with a magnesium hydroxide coating shell for the removal of Cr(VI) in sand columns

open access: yesEnvironment International, 2019
Nanoscale zero-valent iron (NZVI) has been engineered as an attractive tool for in-situ groundwater remediation. However, the poor mobility and aqueous corrosion of NZVI in the porous subsurface have hindered its practical applications. In this research,
Yi-bo Hu, Miaoyue Zhang, Xiao-yan Li
doaj   +1 more source

Response surface design for removal of Cr(VI) by hydrogel-supported sulfidated nano zero-valent iron (S-nZVI@H)

open access: yesWater Science and Technology, 2021
In this study, a new sulfidated nanoscale zero-valent iron (S-nZVI) supported on hydrogel (S-nZVI@H) was successfully synthesized for the removal of chromium (Cr) (VI) from groundwater.
Qi Jing   +5 more
doaj   +1 more source

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