A Comparison of Models Describing Residual NAPL Formation in the Vadose Zone

Modelling the seasonal variation in bioavailability of residual NAPL in the vadose zone

A multiphase model (UTCHEM v.6) has been modified to account for boundary conditions present in the vadose zone, as well as adding an analytic solution for the soil temperature profile, the temperature dependence of physicochemical properties, and revised interphase mass transfer correlations. The model also includes biodegradation, which is limited by moisture content, oxygen and pollutant ava...

Biodegradation in the Vadose Zone

comparison of catalytic activity of heteropoly compounds in the synthesis of bis(indolyl)alkanes.

heteropoly acids (hpa) and their salts have advantages as catalysts which make them both economically and environmentally attractive, strong br?nsted acidity, exhibiting fast reversible multi-electron redox transformations under rather mild conditions, very high solubility in polar solvents, fairly high thermal stability in the solid states, and efficient oxidizing ability, so that they are imp...

comparison of the amount of debris extruded apically in two rotary techniques: flexmaster and m2

چکیده ندارد.

Simulation of solute transport in a heterogeneous vadose zone describing the hydraulic properties using a multistep stochastic approach

[1] The simulation of conservative solute transport in a heterogeneous unsaturated soil depends on the description of spatial variability of soil hydraulic and chemical properties. The data from the Las Cruces Trench Site were used to explore the impact of alternative ways of describing the variability of hydraulic properties. Three different approaches were considered: Miller and Miller scalin...