Auflistung Geologie nach Mitwirkenden "Noubactep, C."
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Comments on “Sorption of triazoles to soil and iron minerals” by Y. Jia et al. [Chemosphere 67 (2007) 250-258].
This letter suggests possible improvements on the discussion of the adsorptive removal of triazoles by iron minerals which are possible corrosion products of elemental iron materials (Fe0) in a recent article by Y. Jia and ... -
Comments on: “The effect of substituent groups on the reductive degradation of azo dyes by zerovalent iron.” By Hou M. et al. [J. Hazard. Mater. 145 (2007) 305]
This letter discusses possible improvements in experimental conditions to enable a purposeful discussion on the effect of substituent groups on the reductive degradation of azo dyes by elemental iron (Fe0) in a recent ... -
Dimensioning metallic iron beds for efficient contaminant removal
Remediation of contaminated groundwater is an expensive and lengthy process. Permeable reactive barrier of metallic iron (Fe0 PRB) is one of the leading technologies for groundwater remediation. One of the primary challenges ... -
Effects of mixing granular iron with sand on the efficiency of methylene blue discoloration
The influence of granular sand on the efficiency of metallic iron (Fe0) for the discoloration of a methylene blue (MB) solution was investigated in the current work. The initial MB concentration was 10 mg L-1 and mass ... -
Effects of the Presence of Pyrite and Carbonate Minerals on the Kinetics of the Uranium Release from a Natural Rock
Noubactep, C.; Sonnefeld, J.; Merten, D.; Heinrichs, T.; Sauter, M. (Journal of Radioanalytical and Nuclear Chemistry, 2006)The influence of calcite, dolomite, pyrite and vaterite on the kinetics of uranium (U) release from a natural rock under relevant i.e. field conditions has been investigated. The time dependence of the U release has been ... -
Elemental metals for environmental remediation: learning from cementation process.
The further development of Fe(0)-based remediation technology depends on the profound understanding of the mechanisms involved in the process of aqueous contaminant removal. The view that adsorption and co-precipitation ... -
Elemental metals for environmental remediation: lessons from hydrometallurgy
In the mining industry, the separation of economically valuable metals from gangue materials is a well established process. As part of this field, hydrometallurgy uses chemical fluids (leachates) of acidic or basic pH ... -
Enhancing sustainability of household water filters by mixing metallic iron with porous materials
This study conceptually discusses the feasibility of enhancing the sustainability of conventional iron/sand filter (Fe0/sand filter) for safe drinking water by partially or totally substituting sand (quartz) by porous ... -
Evaluation of the effects of shaking intensity on the process of methylene blue discoloration by metallic iron.
The term mixing (shaking, stirring, agitating) is confusing because it is used to describe mass transfer in systems involving species dissolution, species dispersion and particle suspension. Each of these mechanisms requires ... -
Impact of Fe0 amendment on methylene blue discoloration by sand columns
The influence of metallic iron (Fe0) amendment on the efficiency of sand to discolor a 2.0 mg L-1 methylene blue (MB) solution was investigated in column studies. MB was used as an indicator to identify the optimum Fe0/sand ... -
Impact of MnO2 on the efficiency of metallic iron for the removal of dissolved CrVI, CuII, MoVI, SbV, UVI and ZnII
The idea that manganese oxide (MnO2) sustains the reactivity of metallic iron (Fe0) is investigated in this study. A multi-elemental aqueous system containing CrVI, CuII, MoVI, SbV, UVI, and ZnII (each about 100 μM) was ... -
Investigating the Release of Co-precipitated Uranium from Iron Oxides
Noubactep, C.; Schöner, A.; Dienemann, H.; Sauter, M. (Journal of Radioanalytical and Nuclear Chemistry, 2006)The removal of uranium (VI) in zerovalent iron permeable reactive barriers and wetlands can be explained by its association with iron oxides. The long term stability of this immobilized U is yet to be addressed. The ... -
Mechanism of Uranium Removal from the Aqueous Solution by Elemental Iron
The effectiveness of elemental iron (Fe0) to remove uranium (U) from the aqueous phase has been demonstrated. While the mitigation effect is sure, discrepancies in the removal mechanism have been reported. The objective ...