Journal ArticleDOI
The kinetics of hexavalent chromium reduction by metallic iron
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TLDR
In this article, the rate reduction of hexavalent chromium (Cr(VI) by metallic iron under a range of conditions was studied in batch systems and the rate constant was evaluated and found to have a value of 5.45 × 10−5 1 cm−2 min−1.About:
This article is published in Water Research.The article was published on 1982-01-01. It has received 147 citations till now. The article focuses on the topics: Hexavalent chromium & Reaction rate constant.read more
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Nanoscale zero valent iron and bimetallic particles for contaminated site remediation
Denis M. O'Carroll,Denis M. O'Carroll,Brent E. Sleep,Magdalena M. Krol,Hardiljeet K. Boparai,C. M. Kocur +5 more
TL;DR: The use of nano zero valent iron (nZVI) for groundwater remediation has been investigated for its potential to reduce subsurface contaminants such as PCBs, chlorinated solvents, and heavy metals.
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The limitations of applying zero-valent iron technology in contaminants sequestration and the corresponding countermeasures: the development in zero-valent iron technology in the last two decades (1994-2014).
TL;DR: The key to improving the rate of contaminants removal by ZVI and broadening the applicable pH range is to enhance ZVI corrosion and to enhance the mass transfer of the reactants including oxygen and H(+) to the ZVI surface.
Journal ArticleDOI
Multicomponent reactive transport modeling in variably saturated porous media using a generalized formulation for kinetically controlled reactions
TL;DR: A generalized formulation for kinetically controlled reactions has been developed and incorporated into a multicomponent reactive transport model to facilitate the investigation of a large variety of problems involving inorganic and organic chemicals in variably saturated media as mentioned in this paper.
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An overview of preparation and applications of stabilized zero-valent iron nanoparticles for soil and groundwater remediation.
TL;DR: This work provides an update on the latest development of stabilized nZVI for various environmental cleanup uses, and overviews the evolution and environmental applications of stabilization, as well as revealing some critical knowledge gaps and research needs.
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Montmorillonite-supported magnetite nanoparticles for the removal of hexavalent chromium [Cr(VI)] from aqueous solutions
TL;DR: Fundamental results demonstrate that the montmorillonite-supported magnetite nanoparticles are readily prepared, enabling promising applications for the removal of hexavalent chromium from aqueous solution.
References
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Book
Standard methods for the examination of water and wastewater
TL;DR: The most widely read reference in the water industry, Water Industry Reference as discussed by the authors, is a comprehensive reference tool for water analysis methods that covers all aspects of USEPA-approved water analysis.
Kinetic model for chromate reduction in cooling tower blowdown
TL;DR: In this paper, a kinetic model for reduction of chromate by SO2 at low pH is presented, which con siders the desired reaction with Cr (VI), the competitive reaction with dissolved oxygen, and reoxygenation.