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After a short introduction to the program PhreeqC and existing data bases simple thermodynamic equilibrium reactions between aqueous, gaseous, and solid phases will be the focus.

Date: 09.10.2013 - 12.10.2013
National/International: International
Language:
Type: Training course
Location: Universität Bayreuth, Germany
Contact: Scientific Organisation:

Prof. Dr. Britta Planer-Friedrich
University Bayreuth
Environmental Geochemistry
95440 Bayreuth
phone 0921 552370 or 552252
Fax 0921 552334
http://www.umweltgeochemie.uni-bayreuth.de

Technical Organisation:

BayCEER
University Bayreuth
95440 Bayreuth
phone: 0921/55-5701
Fax: 0921/55-5709
phreeqc@bayceer.uni-bayreuth.de
Conference web site at:   http:⁄⁄www.bayceer.uni-bayreuth.de⁄phreeqc⁄index.p
hp?lang=en


This will demonstrate how changes in environmental conditions affect the composition of natural waters, the distribution of redoxsensitive species and the saturation with regard to certain gas or mineral phases by dissolution and/or precipitation. Drinking water treatment using open and closed aeration, addition of limestone or mixing of different types of waters will be modeled as well as processes of groundwater rehabilitation, e.g. nitrate reduction by addition of methanol, the determination of the half life of reactive iron barriers, or carbonate buffering of acidic groundwaters. Finally, we will turn to more complex examples, considering kinetic processes and reactive transport, e.g. tritium degradation in the unsaturated zone, sorption in a lysimeter, surface complexation of arsenic on iron hydroxides and regeneration of a double porosity aquifer in a former uranium in-situ leaching mine (with WPhast). All exercises will be introduced with some theoretical background and hints for their realization in PhreeqC; afterwards all participants can work on their own computer with fulltime individual supervision.

Deadlines

September 22,2013Payment of registration fee










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