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The mechanism of aqueous contaminant removal by elemental iron (Fe 0) materials (e.g., in Fe 0-H 2 O systems) has been largely discussed in the " iron technology " literature. Two major removal mechanisms are usually discussed: (i) contaminant adsorption onto Fe 0 oxidation products, and (ii) contaminant reduction by Fe 0 , Fe II or H/H 2. However, a closer(More)
The amendment of the subsurface with nanoscale metallic iron particles (nano-Fe(0)) has been discussed in the literature as an efficient in situ technology for groundwater remediation. However, the introduction of this technology was controversial and its efficiency has never been univocally established. This unsatisfying situation has motivated this(More)
The coprecipitation of U (VI) with iron corrosion products from aque-ous solutions by zero valent iron was investigated. The evidence of coprecipitation was demonstrated by conducting experiments with well characterized scrap iron, pyrite and a mixture of both materials with experimental durations of up to four months. Results indicate that under anoxic(More)
Metallic iron (Fe(0)) is currently used in subsurface and above-ground water filtration systems on a pragmatic basis. Recent theoretical studies have indicated that, to be sustainable, such systems should not contain more than 60% Fe(0) (vol/vol). The prediction was already validated in a Fe(0)/sand system using methylene blue as an operational tracer. The(More)
10 The amendment of the subsurface with nanoscale metallic iron particles (nano-Fe 0) has been 11 discussed in the literature as an efficient in-situ technology for groundwater remediation. 12 However, the introduction of this technology was controversial and its efficiency has never 13 been univocally established. This unsatisfying situation has motivated(More)
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