C
C. Annette Johnson
Researcher at Swiss Federal Institute of Aquatic Science and Technology
Publications - 56
Citations - 8370
C. Annette Johnson is an academic researcher from Swiss Federal Institute of Aquatic Science and Technology. The author has contributed to research in topics: Solubility & Leachate. The author has an hindex of 34, co-authored 55 publications receiving 7238 citations. Previous affiliations of C. Annette Johnson include École Polytechnique Fédérale de Lausanne & ETH Zurich.
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Acid Neutralizing Capacity of Municipal Waste Incinerator Bottom Ash
TL;DR: One of the main concerns in relation to municipal solid waste incinerator (MSWI) bottom ash is the longterm mobility of heavy metals, which depends on leachate pH and thus on the acid neutralizing capacity of MSWI bottom ash, which appears to be predominantly buffered by Ca minerals.
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Oxidation of Sb(III) to Sb(V) by O2 and H2O2 in aqueous solutions
TL;DR: In this paper, the rates of Sb(III) oxidation by O2 and H2O2 were determined in homogeneous aqueous solutions, and the relationship between kobs and pH was: log k o b s = 1.0 ( ± 0.3 ) p H − 18.5 ( ± 3.4 ) R 2 = 0.89
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Hydrological and geochemical factors affecting leachate composition in municipal solid waste incinerator bottom ash. Part II. The geochemistry of leachate from Landfill Lostorf, Switzerland
TL;DR: In this paper, the leachate composition of the Landfill Lostorf, Buchs, Switzerland has been examined as a function rain events and dry periods between November 1994 and November 1996.
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The oxidation of chromium(III) to chromium(VI) on the surface of manganite (γ-MnOOH)
C. Annette Johnson,Aglaia G Xyla +1 more
TL;DR: In this paper, the authors investigated the oxidation kinetics of Cr(III) to Cr(VI) on the surface of manganite (γ-MnOOH) and showed that the reaction is first order with respect to the manganites adsorption density and also to Cr (III) concentration up to a critical adsoreption density (02 μmol m−2) above this concentration the reaction appears to be inhibited.
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Uptake of fluoride from aqueous solution on nano-sized hydroxyapatite: examination of a fluoridated surface layer.
Vanessa Sternitzke,Vanessa Sternitzke,Ralf Kaegi,Jean-Nicolas Audinot,Erik Lewin,Janet G. Hering,Janet G. Hering,Janet G. Hering,C. Annette Johnson +8 more
TL;DR: Results of XPS and NanoSIMS analyses indicate that a fluoridated surface layer with a thickness of several nanometers is formed on nanosized HAP, which was consistent with F(-) uptake from solution.