PHREEQC COURSES

The courses are intended to introduce the powerful capacity of PHREEQC for modeling practical hydrogeochemical problems. Lectures during the course provide an overview of the important processes in water quality. Hand and computer exercises from the 2nd edition of Appelo and Postma's 'Geochemistry, Groundwater and Pollution form an integral part of the course.

During the course you will learn:

• How to model laboratory experiments, such as determination of exchangeable cations, oxidation of pyrite with surface complexation of heavy metals released.
• To calculate the dissolution of CO₂-gas and gas-mixtures at high pressures with the Peng-Robinson equation of state.
• How to model hydrochemical reactions during artificial recharge, aquifer thermal energy storage, in situ iron removal.
• To deduce reaction patterns along groundwater flowlines via inverse modeling, incl. data uncertainties, isotopes.
• How to model any kinetic reaction, such as feldspar weathering, denitrification via sequential Monod kinetics.

The day-to-day program entails:

day 1:	Overview of Hydrogeochemical Reactions and Processes. Basics of PHREEQC, Input & output files, Mineral equilibration, Solid & Liquid solutions, Pressure-effects, Mixing.
day 2:	Exchange, Surface complexation, Simulation of laboratory analyses. Exchangers/surfaces connected to (reacting) minerals. Pyrite oxydation, release/sorption of Arsenic.
day 3:	Advective, Reactive and Dispersive (1D) Transport Chromatographic separations. Modeling of Artificial Recharge
day 4:	Dual porosity calculations, Exchange with Stagnant zones Data optimization with PHREEQC and PEST Multicomponent diffusion in clays
day 5:	Inverse Modeling of Water Quality along Groundwater Flowlines How to cope with Uncertainties, Isotopes Generalized Kinetics in PHREEQC Examples and exercises: Denitrification, Quartz/feldspar dissolution, Kinetics of exchange and surface complexation, Monod kinetics

The course fee is  € 1963,50 (incl. 19% VAT) and includes:

• a CD-ROM with PHREEQC, incl. source codes and the updated manual
• The 2nd edition of Appelo and Postma's 'Geochemistry, Groundwater and Pollution' that is fully rewritten and updated with examples and exercises showing applications of PHREEQC
• specific course exercises, and the answers
• certificate of attendance
• desktop PC's to work on
• refreshments and luncheons during the 5 days of the course

Max. Participants in the course: 12. For further info: contact Tony Appelo, appt@xs4all.nl

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