The unsaturated zone - a neglected component of nature.- Use of stable isotope analysis to assess biodegradation of petroleum hydrocarbons in the unsaturated zone. Laboratory studies, field studies, and mathematical simulations.- A model assessing bioavailability of persistent organic pollutants in soil.- Geochemical changes under variably saturated conditions during artificial recharge via ponded infiltration - A field study.- Transport of Cr(VI), Ni(II) and Mn(II) through metallurgical wastes. Batch and column experiments.- Modeling adsorption-desorption processes of Cu on montmorillonite and the effect of competitive adsorption with a cationic pesticide.- NMR spectroscopy: a tool to study interactions between organic pollutants and soil components?.- Incorporating geomicrobial processes in reactive transport models of subsurface environments.- Consequences of Different Kinetic Approaches for Simulation of Microbial Degradation on Contaminant Plume Development.- Natural Attenuation in the unsaturated zone and shallow groundwater: coupled modeling of vapor phase diffusion, biogeochemical processes and transport across the capillary fringe.- Enhancement of solute spreading in soils due to particle-facilitated transport and preferential flow.- Multiphase and Multi-component Interactions through the Unsaturated Saturated Zone Field and Model Study.- Solute contaminant transport in variably saturated dual-porosity/dual permeability chalk: field tracer experiments and modelling.- Integration of pedotransfer functions and topographical data to obtain soil hydraulic properties at catchment scale.- Analytical Model for Gravity-Driven Drainage.- Hydrogeophysical characterization of subsurface solute transport at the Krauthausen test site: experiments and numericalmodelling.- Tracer Experiments on Field Scale for Parameter Estimation to calibrate Numerical Transport Models.- Biogeochemical modeling of reactive transport applied to laboratory and field studies on jet-fuel contamination.- Assessing the potential for natural or enhanced in-situ bioremediation at a TCE-contaminated site by coupling process analysis and modeling.- Partial source treatment by in-situ technologies - a review of limits, advantages and challenges.
