Results 161 to 170 of about 2,042,307 (187)

Potential Application of Nano Zero Valent Iron in Environmental Protection

2017
Nanoscale zero-valent iron particles (nZVI) have been studied intensively in recent years as a new and promising technology for environmental remediation. nZVI is a readily available and low-cost reducing agent, which also has high reactivity towards a broad range of contaminants.
Dragana Tomašević Pilipović, Đurđa Kerkez, Božo Dalmacija, Milena Bečelić-Tomin, Aleksandar Došić   +4 more
openaire   +2 more sources

Electrophoresis enhanced transport of nano-scale zero valent iron

Advances in Water Resources, 2012
Abstract Electrokinetics (EK) has been used extensively to remove heavy metals from low permeability porous media. Electrokinetics (EK) or more specifically electrophoresis (EP) has also been proposed to enhance transport of nanoscale zero valent iron (NZVI) in fine grained porous media in the subsurface. However, increased dissolved oxygen and lower
Ahmed I.A. Chowdhury, Denis M. O’Carroll, Yanqing Xu, Brent E. Sleep   +3 more
openaire   +1 more source

A novel nano zero-valent iron biomaterial for chromium (Cr6+ to Cr3+) reduction

Environmental Science and Pollution Research, 2019
This research work aims to develop a biomaterial entrapped with iron nanoparticles by green synthesis method in which biomass act as both reducing and capping agent. Iron nanoparticles embedded in Citrus limetta peels were characterised using ICP-MS for determination of metal loading, XRD, XPS for crystallinity and oxidation states, TEM followed by ...
Utsav Dalal, Sivamohan N. Reddy
openaire   +2 more sources

Development of an inductive concentration measurement sensor of nano sized zero valent iron

International Multi-Conference on Systems, Sygnals & Devices, 2012
The injection of colloidal nano sized zero valent iron (nZVI) into a contaminated aquifer is a promising new in-situ groundwater remediation technique. An inductive sensor is presented to directly detect and measure the concentration of nZVI in the subsurface.
Hua Li, Cjestmir V. de Boer, Andre Buchau, Norbert Klaas, Wolfgang M. Rucker, Hubert Hermes   +5 more
openaire   +2 more sources

Field-Scale Transport and Transformation of Carboxymethylcellulose-Stabilized Nano Zero-Valent Iron

Environmental Science & Technology, 2013
The fate of nano zerovalent iron (nZVI) during subsurface injection was examined using carboxymethylcellulose (CMC) stabilized nZVI in a very large three-dimensional physical model aquifer with detailed monitoring using multiple, complementary detection methods.
Richard L, Johnson, James T, Nurmi, Graham S, O'Brien Johnson, Dimin, Fan, Reid L, O'Brien Johnson, Zhenqing, Shi, Alexandra J, Salter-Blanc, Paul G, Tratnyek, Gregory V, Lowry   +8 more
openaire   +2 more sources

DECHLORINATION OF CHLORINATED HYDROCARBONS BY ZERO-VALENT IRON NANO-PARTICLES

2007
Nano-particle zero-valent iron has been used for several years by Golder Associates in the United States to reduce chlorinated hydrocarbons. Its first application (in the form of a pilot test) in Europe was successfully performed at a large industrial facility in the Czech Republic.
M. PUPEZA, M. CERNIK, M. GRECO
openaire   +1 more source

Transport of polymer stabilized nano-scale zero-valent iron in porous media

Journal of Contaminant Hydrology, 2018
This study presents a set of laboratory-scale transport experiments and numerical simulations evaluating carboxymethyl cellulose (CMC) polymer stabilized nano-scale zero-valent iron (nZVI) transport. The experiments, performed in a glass-walled two-dimensional (2D) porous medium system, were conducted to identify the effects of water specific discharge
Pulin K, Mondal, Paul D, Furbacher, Ziteng, Cui, Magdalena M, Krol, Brent E, Sleep   +4 more
openaire   +2 more sources

The Use of Nano Zero Valent Iron in Remediation of Contaminated Soil and Groundwater

International Journal of Scientific Research in Environmental Sciences, 2013
Environmental contaminants have been known to be present in many hazardous waste sites, which made an enormous impact on the quality of groundwater, soil and associated ecosystems. Remediation of these contaminated sites is an important challenge for the scientific and technical community.
Maryam Taghizadeh, Daryoush Yousefi Kebria, Golamreza Darvishi, Farshad Golbabaei Kootenaei   +3 more
openaire   +1 more source

Enhancement of hydrogenotrophic methanogenesis for methane production by nano zero-valent iron in soils

Environmental Research
Nanoscale zero-valent iron (nZVI) is attracting increasing attention as the most commonly used environmental remediation material. However, given the high surface area and strong reducing capabilities of nZVI, there is a lack of understanding regarding its effects on the complex anaerobic methane production process in flooded soils.
Weijie, Peng, Jinrong, Lu, Jiajie, Kuang, Rong, Tang, Fengyi, Guan, Kunting, Xie, Lihua, Zhou, Yong, Yuan   +7 more
openaire   +2 more sources

Encapsulating carbon-coated nano zero-valent iron particles with biomass-derived carbon aerogel for efficient uranium extraction from uranium-containing wastewater

Journal of Cleaner Production, 2022
Wenkun Zhu, Kaifu Yu
exaly