Table of Contents

Foreword of the Editors. Acknowledgements. PART: INORGANIC CONTAMINANTS. 1. Mobilization of Nickel, Cobalt and Arsenic in a Multi--aquifer Formation of the Lower Rhine Valley: Identification and Modeling of the Processes Controlling Metal Mobility (N. Cremer, et al.). 2. Experimental and Theoretical Investigations of Oxygen Release by a Trapped Gas Phase (H. Geistlinger, et al.). 3. The Application of Stable Isotopes to the Determination of the Origin of Sulfate in the Drinking Water Catchment Area of Torgau--Mockritz (Germany) (K. Knoller, et al.). 4. Groundwater Leakage Through a Confining Unit Beneath a Municipal Well Field, Memphis, Tennessee, USA (D. Larsen, et al.). 5. Iron--Cyanide Complexes in Soil and Groundwater (T. Mansfeldt and T. Rennert). 6. A FTIR Spectroscopical Study to Explain Bonding Structures of Arsenate and Chromate Associated with Schwertmannite (S. Regenspurg and S. Peiffer). 7. P rotection of the Groundwater Resources of Metropolis Cebu (Philippines) in Consideration of Saltwater Intrusion into the Coastal Aquifer (O. Scholze, et al.). 8. Temporal Variability of Element Concentrations and Fluxes in a Strongly Acidified Cambic Arenosol (H. Wetzel, et al.). PART II: ORGANIC CONTAMINANTS. 9. Short Chained Alkyl Phenols (SCAP) in the Environment Chemical Analysis and Field Studies (T. Licha, et al.). 10. Concept and First Results of Studying Natural Attenuation at a Site in Northern Bavaria Contaminated with Chlorinated Ethenes (S. Marczinek and S. Peiffer). 11. Effects of Interspecies Competition on the Design of Permeable Reactive Iron Barriers (D. Schafer, et al.). 12. Influence of Colloids and Suspended Particles on PAH--Transport in Groundwater (U. Schulte--Ebbert and U. Schottler). 13. Combined d 13 C and d 2 H Monitoring of in situ Biodegradation of Aromatic Hydrocarbons in a Contaminated Aquifer (A. Steinbach and W. Michaelis). 14. Fate of PAH at Contaminated Sites: Facts and Concepts for the Unsaturated Soil Zone (K. Uwe, et al.). 15. Natural Attenuation Compounds Related to Volatilisation (K. Weber, et al.). 16. Assessment of Enhanced Natural Attenuation Processes in a BTEX--contaminated Aquifer: Field and Column Experiments and its Modeling (F. Wisotzky and P. Eckert). 17. Analysis and Occurrence of Nitrogen--Heterocyclic and Polyaromatic Compounds and their Transformation Products in the Subsurface at a Contaminated Site (C. Zwiener, et al.). PART III: WATER IN MINING AREAS. 18. Deposition of Organic Matter and Schwertmannite Controls Neutralization Rates in Sediments of Acidic Mine Lakes (C. Blodau and S. Peiffer). 19. Mobilisation of Arsenic from Tin Mill Tailings (B. Daus, et al.). 20. Pyrite Weathering in the Unsaturated Zone of Lignite Mine Tailings: Release of As, Cd, Ni and Pb in a Soil Column Experiment (H. Hecht, et al.). 21. Sources, Migration Forms and Sinks of Trace Elements in Drainage and Pore Waters from Waste Rock Dumps of Former Lignite Mines (Germany) (H. Heinrichs, et al.). 22. Arsenic Cycling in a Covered Mine Tailings Deposit, Northern Sweden (G. Jacks, et al.). 23. Modelling Ion Composition in Seepage Water from Column and Batch Experiments with Open Cut Coal Mine Sediments (B. Ludwig, et al.). 24. Effect of Pyrite Oxidation on Dynamic Sulphate Concentrations in an Alluvial Aquifer (V. Schmalz, et al.). 25. Sulphate Reduction in Lignite Mining Dumps: Insights from Stable Isotope Studies (G. Strauch, et al.). 26. Sulfide Oxidation at the Polymetallic Sulfide Deposit Freiberg (Germany) and Consequences for Heavy Metal Mobilisation (M. Tichomirowa, et al.). PART IV: KINETICS, TRANSPORT AND MODELS. 27. Calculating the Fractionation of Isotopes in Hydrochemical (transport) Processes with PHREEQC--2 (C. Appelo). 28. Experiments and Modelling on Mobility of Copper (Cu) and Antimony (Sb) in Buffered and Non--buffered Aquifer Sediments (G. Fohrmann, et al.). 29. A Reactive Transport Model for Redox Components -- Verification of Transport and Test of Field Data (E. Holzbecher and C. Horner). 30. Calibration of Tortuosity and Effective Diffusion Based on Oxygen Measurements in a Column Experiment Using a One--dimensional Reaction Transport Model (C. Kohfahl, et al.). 31. Predicting the Source Strength of Different Recycling Materials -- Methods and Preliminary Results (T. Lager, et al.). 32. Reactive Transport Modelling for Variably Saturated Groundwater Systems: The State of the Art (K. Mayer and E. Frind). PART V: UPSCALING OF PROCESSES. 33. Biogeochemistry of a Deep Aquifer--Systems I: Hydrogeochemistry (A. Bergmann, et al.). 34. Biogeochemistry of a Deep Aquifer--System II: Stable Isotopes (U. Schulte and H. Strauss). 35. Biogeochemistry of a Deep Aquifer System III: Microbiology (J. Kuever and J. Detmers). 36. Degradation of Microcystins: Scaling up from Test--Tube to Natural Conditions (G. Bottcher, et al.). 37. Fundamentals of Spatial Resolved Transport Studies in Soil Columns by Positron Emission Tomography ( M. Richter, et al.). 38. Positron Emission Tomography (PET) for Investigation of Water Flow in Soil Columns (M. Grundig, et al.). 39. Infiltration of River Water into the Groundwater -- Quantifying 250 Years of Iron Reduction in an Anoxic Aquifer (Oderbruch, Germany) (G. Massmann, et al.). 40. Identification and Quantification of Hydrochemical Processes at the Contact Zone between Anoxic Groundwater and Surface Water in the Oderbruch Polder (C. Merz, et al.). 41. Geochemical Processes in the Salt--Freshwater Transition Zone -- Exchanger Reactions in a 2D--Sand--Tank Experiment (B. Panteleit, et al.).