Water Rock Interaction

Characterisation of waste materials

• C.A. Johnson (1994) Das Langzeitverhalten von Müllschlacke im Hinblick auf die Mobilität von Schwermetallen und Salzen. In Entsorgung von Schlacken und sonstigen Restsoffen, D.O. Reimann (Ed.), Beiheft zu Müll und Abfall 31.

• C.A. Johnson, S. Brandenberger and P. Baccini (1995) The acid neutralising capacity of municipal waste incinerator bottom ash. Environ. Sci. Technol., 29, 142-147.

• C.A. Johnson, F. Ziegler, M. Kersten and H.C. Moor (1996) Leaching behaviour and solubility-controlling solid phases of heavy metals in municipal solid waste incinerator ash. Waste Management. 16(1-3), 129-134.

• C.A. Johnson, H. Moench and S. Brandenberger (1999) The characterization and long-term behaviour of the fine fraction of sorted demolition wastes. J. Environ. Qual. 28, 1061-1067.

Landfill studies

• C.A. Johnson, G.A. Richner, T.Vitvar, N. Schittli and M. Eberhard (1998) Hydrological and geochemical factors affecting leachate composition in municipal solid waste incinerator bottom ash. Part I: The hydrology of Landfill Lostorf, Switzerland. J. of Contaminant Hydrol., 33 (3-4), 361-376.

• C.A Johnson, M. Kaeppeli, S. Brandenberger, A. Ulrich and W. Baumann (1999) Hydrological and geochemical factors affecting leachate composition in municipal solid waste incinerator bottom ash. Part II: The geochemistry of leachate from Landfill Lostorf, Switzerland. J. Contam. Hydrol. 40(3), 239-259.

• C. Ludwig, C.A. Johnson, M. Kaeppeli, A. Ulrich and S. Riediker (2000) Hydrological and geochemical factors controlling the weathering of cemented MSWI filter ashes: A lysimeter field study. J. Contam. Hydrol. 42(2-4), 253-272.

• C.A. Johnson, M.K. Schaap and K. Abbaspour, (2000) Modelling of flow through a municipal solid waste incinerator ash landfill. Submitted to Journal of Hydrology.

Metal binding in the cement matrix

• C.A. Johnson and M. Kersten (1999) A possible mechanism of Zn binding to Ca silicate hydrates. J. Environ. Sci. Technol. 33(13), 2296-2298.

• F. Ziegler, A.M. Scheidegger, C.A. Johnson, R.Dähn and Erich Wieland (2000) The sorption mechanisms of zinc to calcium silicate hydrate: An X-ray absorption fine structure (XAFS) investigation. Submitted to Environ. Sci. Technol..

• F. Ziegler and C.A. Johnson (2000) The solubility of calcium zincate (CaZn2(OH)6.2H2O). Submitted to Cem. Concr. Res..

• F. Ziegler, R. Gieré and C.A. Johnson (2000) The sorption mechanisms of zinc to calcium silicate hydrate: Sortion studies and microscopic investigations. Submitted to Environ. Sci. Technol.

Heavy-metal Geochemistry

• C.A. Johnson. (1986) The regulation of trace element concentrations in river and estuarine waters contaminated with acid mine drainage: the adsorption of Cu and Zn on amorphous Fe oxyhydroxides. Geochim. Cosmochim. Acta, 50, 2433-2438.

• C.A. Johnson and I. Thornton (1987) Hydrological and chemical factors controlling the concentrations of Fe, Cu, Zn and As in a river system contaminated by acid mine drainage. Wat. Res., 21(3), 359-365.

• C.A. Johnson (1990) A rapid technique for the separation and preconcentration of Cr(VI) and Cr(III) in natural waters. Anal. Chim. Acta, 238, 273-278.

• C.A. Johnson and A.G. Xyla (1991) The oxidation of chromium(III) to chromium(VI) on the surface of manganite (g-MnOOH). Geochim. Cosmochim. Acta, 55, 2861-2866.

• L. Sigg, C.A. Johnson and A. Kuhn (1991) Redox conditions and alkalinity generation in a seasonally anoxic lake. Mar. Chem., 36, 9-26.

• C.A. Johnson, M. Ulrich, L. Sigg and D. Imboden (1991) A mathematical model of the manganese cycle in a seasonally anoxic lake. Limnol. Oceanogr., 36(7), 1415-1426.

• A. Kuhn, C.A. Johnson and L. Sigg (1992) Cycle of trace elements in a lake with a seasonally anoxic hypolimnion. In Advances in Chemistry No. 237, "The environmental Chemistry of reservoirs and lakes". L.A. Baker (Ed.), 473-498.

• C.A. Johnson, L. Sigg and U. Lindauer (1992) The chemical behaviour of chromium in Lake Greifen, Switzerland. Limnol. Oceanogr., 37(2), 315-321.

• M. Kersten, H.C. Moor and C.A. Johnson (1997) Speciation of trace metals in leachate from a MSWI bottom ash landfill. Appl. Geochem.,12 , 675-683.

• M. Kersten, B. Schulz-Dorrick, T. Lichtensteiger and C.A. Johnson (1998) Speciation of Cr in leachates of a MSWI bottom ash landfill. Environ. Sci. Technol., 32, 1398-1403.

Contaminated sites

• A. Amirbahman, H.R. Zweifel, R. Schoenenberger and C.A. Johnson (1998) The role of Fe in the redox buffer capacity of a subsurface system affected by landfill leachate. J. Environ. Sci. Technol., 32, 1933-1940.

• K. Abbaspour, V. Matta, P. Huggenberger and C.A. Johnson (1999) A contaminated site investigation: Comparison of information gained from geophysical measurements and hydrogeological modeling. J. Contam. Hydrol. 40(4), 365-380.

• H.-R. Zweifel and C.A. Johnson (1999) Langzeitanalysen der Hauptelemente von Sickerwässern aus Altdeponien.. Müll und Abfall, 12, 727-732.

• E. Hoehn, C.A. Johnson, A. Amirbahman, P. Huggenberger, H.-R. Zweifel, A. Ulrich and A. Ammann (2000) Optimising investigation procedures for the long term assessment of old contaminated sites. Accepted by J. Waste Manag. Res.

Acid precipitation

• C.A. Johnson and L. Sigg.(1985) Acidity of rain and fog; Conceptual definitions and practical measurements of acidity, Chimia, 39(2-3), 59-61.

• C.A. Johnson, L. Sigg and J. Zobrist (1987) Case studies on the chemical composition of fogwater: the influence of local gaseous emissions. Atmospheric Environment, 21(11), 2365-2374.

Studies on hydrophobicity

• J.C. Westall, C.A. Johnson and W. Zhang (1990) The distribution of simple inorganic salts between octanol and water. Environ. Sci. and Technol., 24(12), 1803-1810.

• C.A. Johnson and J.C. Westall (1990) The effect of pH and ionic strength on the aqueous-nonaqueous distribution of methylanilines. Environ. Sci and Technol., 24(12), 1869-1875.