Results 181 to 190 of about 2,042,339 (210)

Textile dye degradation using nano zero valent iron: A review

Journal of Environmental Management, 2016
Water soluble unfixed dyes and inorganic salts are the major pollutants in textile dyeing industry wastewater. Existing treatment methods fail to degrade textile dyes and have limitations too. The inadequate treatment of textile dyeing wastewater is a major concern when effluent is directly discharged into the nearby environment.
Chandra Devi, Raman, S, Kanmani
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Effects of Nano Zero-Valent Iron on Klebsiella oxytoca and Stress Response

Microbial Ecology, 2013
Nano zero-valent iron (NZVI) is a new option for contaminated soil and groundwater treatment, despite little is known on their impact on environmental microorganisms. Klebsiella oxytoca K5 strain, isolated from the NZVI-treated soil, was used to investigate the bacterial, phenotypical and molecular response to commercial NZVI exposure.
Maria Ludovica, Saccà, Carmen, Fajardo, Mar, Nande, Margarita, Martín   +3 more
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Enhancing anaerobic digestion of sulphate wastewater by adding nano-zero valent iron

Environmental Technology, 2022
In this paper, the effects of nano-zero valent iron (nZVI) on anaerobic digestion of sulphate wastewater with different SO42-/COD ratios, including the COD removal rate, methane yield, intermediate products and the change of microbial community structure, were investigated. The results showed that nZVI could effectively enhance the treatment efficiency
Jiacheng, Liu, Yongyu, Ding, Wen, Qiu, Qunpeng, Cheng, Chenxi, Xu, Guozhi, Fan, Guangsen, Song, Bo, Xiao   +7 more
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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
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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
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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
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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