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Zerovalent Iron
Zerovalent iron (ZVI) is jargon that describes forms of iron metal used for Groundwater remediation. ZVI serves as a reducing agent.Gillham, Robert, John Vogan, Lai Gui, Michael Duchene, and Jennifer Son. "Iron Barrier Walls for Chlorinated Solvent Remediation." ''In Situ'' Remediation of Chlorinated Solvent Plumes. Ed. Hans F. Stroo and C. Herb Ward. New York, NY: Springer Science+Business Media, 2010. ZVI operates by electron transfer from Fe0 to the pollutant. For organochlorine pollutants, Fe2+ and Cl− are produced.Tratnyek, Paul, and Rick Johnson. "Remediation with Iron Metal." Center for Groundwater Research. Oregon Health and Science University, 04 Feb. 2005. Type of metal *Bulk Fe. Cast iron, consisting of scrap iron of construction grade, has been used as a reactive material for permeable reactive barriers for groundwater remediation. Reactions are generally believed to occur on the Fe (oxide) surface; however, graphite inclusions have been shown can also serve as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iron Wall Venn Diagram
Iron () is a chemical element with symbol Fe (from la, ferrum) and atomic number 26. It is a metal that belongs to the first transition series and group 8 of the periodic table. It is, by mass, the most common element on Earth, right in front of oxygen (32.1% and 30.1%, respectively), forming much of Earth's outer and inner core. It is the fourth most common element in the Earth's crust. In its metallic state, iron is rare in the Earth's crust, limited mainly to deposition by meteorites. Iron ores, by contrast, are among the most abundant in the Earth's crust, although extracting usable metal from them requires kilns or furnaces capable of reaching or higher, about higher than that required to smelt copper. Humans started to master that process in Eurasia during the 2nd millennium BCE and the use of iron tools and weapons began to displace copper alloys, in some regions, only around 1200 BCE. That event is considered the transition from the Bronze Age to the Iron Age ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
