Auflistung nach Mitwirkenden "Noubactep, Chicgoua"
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Arsenic release from a natural rock under near-natural oxidizing conditions
The solubilization of arsenic (As) from an ore material (native Arsenic [As, trig.] with Lollingite [FeAs2, rh.]) was characterized in leaching tests lasting for ≤ 99 days. The experiments were performed with materials of ... -
Characterizing As, Cu, Fe and U solubilization by natural waters
Noubactep, Chicgoua; Schöner, A.; Schubert, M. (Springer-Verlag, Berlin/HeidelbergSpringer, Berlin/Heidelberg2008)The effects of carbonate concentration and the presence of in-situ generated iron oxide and hydroxide phases (iron oxyhydroxides) on arsenic (As), copper (Cu), and uranium (U) release from natural rocks were investigated ... -
Characterizing uranium solubilization under natural near oxic conditions
Noubactep, Chicgoua; Merten, Dirk; Heinrichs, Till; Sonnefeld, Jürgen; Sauter, Martin (Uranium in the Environment, 2006)A 782 d solubilization study using not shaken batch experiments and involving one uranium-bearing rock and three natural carbonate minerals was conducted to characterize uranium (U) leaching under oxic conditions. Results ... -
Comments on "Decontamination of solutions containing EDTA using metallic iron"
This letter presents an improved discussion of the data provided in a recent article on EDTA removal from aqueous solutions using elemental iron (Fe0) by O. Gyliene and his co-workers. It is shown that the authors have ... -
Comments on: "Sorption of triazoles to soil and iron minerals" by Y. Jia et al. [Chemosphere 67 (2007) 250258]
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 Jia et al. ... -
Comments on: "The effect of substituent groups on the reductive degradation of azo dyes by zerovalent iron" by M. Hou, 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 ... -
Comments on: “Decontamination of solutions containing EDTA using metallic iron”
This letter presents an improved discussion of the data provided in a recent article on EDTA removal from aqueous solutions using elemental iron (Fe(0)) by O. Gyliene and his co-workers. It is shown that the authors have ... -
Designing Iron-Amended Biosand Filters for Decentralized Safe Drinking Water Provision
There are ongoing efforts to render conventional biosand filters (BSF) more efficient for safe drinking water provision. One promising option is to amend BSF with a reactive layer containing metallic iron (Fe0). The present ... -
Effect of pumice and sand on the sustainability of granular iron beds for the aqueous removal of CuII, NiII, and ZnII
Bilardi, Stefania; Calabrò, Paolo S.; Caré, Sabine; Moraci, Nicola; Noubactep, Chicgoua (CLEAN - Soil, Air, Water, 2013)Current knowledge of the basic principles underlying the design of Fe0 beds is weak. The volumetric expansive nature of iron corrosion was identified as the major factor determining the sustainability of Fe0 beds. This ... -
Effects of selected ligands on U (VI) immobilization by zerovalent iron
The effect of Cl-, CO32-, EDTA, NO2-, NO3-, PO43-, SO42-, and humic substances (HS)on the U(VI)co-precipitation from aqueous solutions by zerovalent iron (ZVI) was investigated in the neutral pH range.Batch experiments ... -
Effects of the presence of pyrite and carbonate minerals on the kinetics of the uranium release from a natural rock
Noubactep, Chicgoua; Sonnefeld, J.; Merten, D.; Heinrichs, T. (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 iron (Fe0) for better drinking water in rural areas of developing countries
Many of the reasons behind the anthropogenic contamination problems in rural environments of developing countries lie in changes in the traditional way of life and the ignorance on the toxic potential of introduced ...