Search Results - "ABDELMOULA, Mustapha"

Role of secondary minerals in the acid generating potential of weathered mine tailings: Crystal-chemistry characterization and closed mine site management involvement by Elghali, Abdellatif, Benzaazoua, Mostafa, Bouzahzah, Hassan, Abdelmoula, Mustapha, Dynes, James J., Jamieson, Heather E.

“…Mine tailings exposed to water and oxygen generate acid mine drainage (AMD) when the neutralizing minerals are insufficient to buffer the acid produced by…”
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Using Ca Fe layered double hydroxide transformation to optimise phosphate removal from waste waters by Al Jaberi, Muayad, Mallet, Martine, Greenwell, H. Chris, Abdelmoula, Mustapha, Ruby, Christian

“…Single phase Casingle bondFe layered double hydroxide (LDH) minerals containing Cl− species in the interlayer was synthesized by coprecipitation with a CaII:…”
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As(V) and As(III) sequestration by starch functionalized magnetite nanoparticles: influence of the synthesis route onto the trapping efficiency by Robinson, Mbolantenaina Rakotomalala, Coustel, Romain, Abdelmoula, Mustapha, Mallet, Martine

“…We report the effect of the synthesis route of starch-functionalized magnetite nanoparticles (NPs) on their adsorption properties of As(V) and As(III) from…”
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Pb-Bearing Ferrihydrite Bioreduction and Secondary-Mineral Precipitation during Fe Redox Cycling by Fatima Meite, Mustapha Abdelmoula, Patrick Billard, Thomas Hauet, Asfaw Zegeye

“…The significant accumulation of Pb from anthropogenic activities threatens environmental ecosystems. In the environment, iron oxides are one of the main…”
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Characterization of Iron-Rich Phyllosilicates Formed at Different Fe/Si Ratios by Dzene, Liva, Dutournie, Patrick, Brendle, Jocelyne, Limousy, Lionel, Le Meins, Jean-Marc, Michelin, Laure, Vidal, Loïc, Gree, Simon, Abdelmoula, Mustapha, Martin, Christelle, Michau, Nicolas

“…The formation of 2:1 and 1:1 phyllosilicates in Fe–Si–O–H systems occurs in various geological and engineering settings; however, the identification and…”
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Nitrite Reduction by Biogenic Hydroxycarbonate Green Rusts: Evidence for Hydroxy-nitrite Green Rust Formation as an Intermediate Reaction Product by Guerbois, Delphine, Ona-Nguema, Georges, Morin, Guillaume, Abdelmoula, Mustapha, Laverman, Anniet M, Mouchel, Jean-Marie, Barthelemy, Kevin, Maillot, Fabien, Brest, Jessica

“…The present study investigates for the first time the reduction of nitrite by biogenic hydroxycarbonate green rusts, bio-GR(CO3), produced from the…”
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Immobilization of P by oxidation of Fe(II) ions leading to nanoparticle formation and aggregation by Châtellier, Xavier, Grybos, Malgorzata, Abdelmoula, Mustapha, Kemner, Kenneth M., Leppard, Gary G., Mustin, Christian, West, M. Marcia, Paktunc, Dogan

“…•We oxidize Fe(II) ions at pH 6.0 in permanently oxic conditions.•Syntheses are performed at P/Fe ratios ranging from 0 to 3.•For P/Fe=0, lepidocrocite,…”
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Biogenic Fe(II-III) Hydroxycarbonate Green Rust Enhances Nitrate Removal and Decreases Ammonium Selectivity during Heterotrophic Denitrification by Georges Ona-Nguema, Delphine Guerbois, Céline Pallud, Jessica Brest, Mustapha Abdelmoula, Guillaume Morin

“…Nitrification-denitrification is the most widely used nitrogen removal process in wastewater treatment. However, this process can lead to undesirable nitrite…”
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Oxidation modes and thermodynamics of FeII–III oxyhydroxycarbonate green rust: Dissolution–precipitation versus in situ deprotonation by Ruby, Christian, Abdelmoula, Mustapha, Naille, Sébastien, Renard, Aurélien, Khare, Varsha, Ona-Nguema, Georges, Morin, Guillaume, Génin, Jean-Marie R.

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Fougerite, a new mineral of the pyroaurite-iowaite group; description and crystal structure by Trolard, Fabienne, Bourrié, Guilhem, Abdelmoula, Mustapha, Refait, Philippe, Feder, Frédéric

“…Fougerite (IMA 2003-057) is a mixed M(II)-M(III) hydroxysalt of the green rust group, where M(II) can be Fe or Mg, and M(III) is Fe. The general structural…”
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Arsenite sequestration at the surface of nano-Fe(OH) 2, ferrous-carbonate hydroxide, and green-rust after bioreduction of arsenic-sorbed lepidocrocite by Shewanella putrefaciens by Ona-Nguema, Georges, Morin, Guillaume, Wang, Yuheng, Menguy, Nicolas, Juillot, Farid, Olivi, Luca, Aquilanti, Giuliana, Abdelmoula, Mustapha, Ruby, Christian, Bargar, John R., Guyot, François, Calas, Georges, Brown, Gordon E.

“…X-ray Absorption Fine Structure (XAFS) spectroscopy was used in combination with high resolution transmission electron microscopy (HRTEM), electron energy loss…”
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Effect of orthophosphate on the oxidation products of Fe(II)-Fe(III) hydroxycarbonate: the transformation of green rust to ferrihydrite by Benali, Omar, Abdelmoula, Mustapha, Refait, Philippe, Génin, Jean-Marie Robert

“…Hydroxycarbonate green rust GR(CO 3 2−) has been synthesized by oxidation of aqueous suspensions of Fe(OH) 2 by aeration at the air–liquid interface, in the…”
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Iron(II,III) Hydroxycarbonate Green Rust Formation and Stabilization from Lepidocrocite Bioreduction by Ona-Nguema, Georges, Abdelmoula, Mustapha, Jorand, Frédéric, Benali, Omar, Block, Jean-Claude, Génin, Jean-Marie R

“…Bioreduction of the well-crystallized ferric oxyhydroxide γ-FeOOH lepidocrocite was investigated in batch cultures using Shewanella putrefaciens bacterium…”
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Thermodynamic Equilibria in Aqueous Suspensions of Synthetic and Natural Fe(II)−Fe(III) Green Rusts:  Occurrences of the Mineral in Hydromorphic Soils by Génin, Jean-Marie R, Bourrié, Guilhem, Trolard, Fabienne, Abdelmoula, Mustapha, Jaffrezic, Anne, Refait, Philippe, Maitre, Véronique, Humbert, Bernard, Herbillon, Adrien

“…Synthetic green rusts, GRs, are prepared by oxidation of Fe(OH)2 incorporating Cl-, SO4 2-, or CO3 2- ions. E h−pH diagrams are drawn, and thermodynamic data…”
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Iron control by equilibria between hydroxy-Green Rusts and solutions in hydromorphic soils by Bourrié, Guilhem, Trolard, Fabienne, Jaffrezic, Jean-Marie Robert GéninAnne, Maı̂tre, Véronique, Abdelmoula, Mustapha

“…In order to verify Fe control by solution - mineral equilibria, soil solutions were sampled in hydromorphic soils on granites and shales, where the occurrence…”
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Structure and stability of the Fe(II)–Fe(III) green rust “fougerite” mineral and its potential for reducing pollutants in soil solutions by Génin, Jean-Marie R., Refait, Philippe, Bourrié, Guilhem, Abdelmoula, Mustapha, Trolard, Fabienne

“…Fe(II)–Fe(III) layered double hydroxysalt green rusts, GRs, are very reactive compounds with the general formula, [Fe II (1−x) Fe III x (OH) 2] x+·[(x/n) A n−…”
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Coprecipitation of Fe(II) and Fe(III) cations in sulphated aqueous medium and formation of hydroxysulphate green rust by Ruby, Christian, Géhin, Antoine, Abdelmoula, Mustapha, Génin, Jean-Marie R, Jolivet, Jean-Pierre

“…Fe(II)–Fe(III) solutions having a variable Fe(III) molar fraction were titrated with a NaOH solution. Three plateau regions separated by two equivalent points…”
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Formation of Hydroxysulphate Green Rust 2 as a Single Iron(II-III) Mineral in Microbial Culture by Zegeye, Asfaw, Ona-Nguema, Georges, Carteret, Cédric, Huguet, Lucie, Abdelmoula, Mustapha, Jorand, Frédéric

“…Although GR2(SO 4 2- ) can be easily formed by abiotic synthesis, the biotic formation of hydroxysulphate as a single iron(II-III) mineral in microbial culture…”
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Synthesis of Fe(II-III) hydroxysulphate green rust by coprecipitation by Géhin, Antoine, Ruby, Christian, Abdelmoula, Mustapha, Benali, Omar, Ghanbaja, Jaafar, Refait, Philippe, Génin, Jean-Marie R.

“…Iron(II-III) hydroxysulphate precipitates were prepared in absence of other compounds by coprecipitation that consists of mixing solutions of iron(II) and…”
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Cronstedtite: H2 generation and new constraints on its formation conditions by Pignatelli, Isabella, Mugnaioli, Enrico, Mosser-Ruck, Régine, Abdelmoula, Mustapha, Sterpenich, Jérôme

“…This work investigated the formation conditions of cronstedtite, the most Fe-rich serpentine, using a steel autoclave lined with Teflon at 90 °C, over…”
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