Remediation Symposium 2006 PDF Print
 
 
5th Symposium on remediation in Jena (“Jenaer Sanierungskolloqium”):
„Bio-Geo-Interactions and reactive transport“

The 5th symposium on remediation focuses on reactive transport, especially of heavy metals and radionuclides, within the aqueous phase at acid mine drainage influenced sites. Reactive transport is achieved by chemical, physical and geological processes, mainly involving solution and precipitation, colloidal transport and complex formation. Especially with a heterogeneous geo-substrate, which shows varying transmissivities and storage coefficients, these processes are of special importance. Additionally, reactive transport is influenced by biological factors, modifying it considerably, which has been ignored widely so far. Prominent examples would be enzymes which are able to accelerate the reaction kinetics by several orders of magnitude, or bio-filtration, which can determine the uptake of heavy metal species into the plant, or finally, microbes that can transform the inert carbon within rocks to dissolved organic carbon (DOC) and thus supply material for effective complex formation. These examples show that reactive transport is finely interwoven in a complex manner with the microbial metabolism. This year’s remediation symposium is dedicated to such bio-geo-interactions. The former uranium mining district of Eastern Thuringia represents one of the most cost intensive remediation projects world-wide, and at the same time also provides a perfect research area for basic and applied sciences in bio-geo-interactions. In the alluvial loam that was contaminated with seepage water for 40 years, a number of microbes have adapted to the harsh environment by developing resistance mechanisms. In substrates that are only slightly contaminated, the use of these adjusted and subsequently cultivated strains can lead to a cost-effective, on site application which considerably reduces the need for technological soil-improving processes by use of bioremediation for defined target sites. At the same time, the possibility of improving the quality of seeping water and groundwater is enforced. Thus, this symposium aims at improving the knowledge for biologically influenced geological, chemical and physical processes.
In session 1, case studies for acid mine drainage are presented. Session 2 deals with specific application examples in the area of soil and plant. In session 3, geomicrobiological processes are viewed in the light of their influence on the reactive transport. Session 4 gives examples in the area of radionuclides. Session 5 is dedicated to the contributions of biological processes to the fractionation of elements, e.g. rare earth elements. The final session 6 reveals effects of bio-geo-interactions in the saturated zone of soils.
 
Bio-geo-interactions is a subject for which the University of Jena has set an interdisciplinary focus across departments. The Ph.D. program “Alteration and element mobilization at the interface between minerals and microbes” funded by the German Research Foundation (DFG), as well as associated research projects, mainly supported by the German Ministry of Education and Technology, contribute efficiently to this development. The recently installed and accredited study courses BSc and MSc “Biogeosciences” provide the background for this research.

We welcome you warmly to the 5th remediation symposium in Jena and invite you to participate.

Gerorg Büchel, Erika Kothe & Hans Bergmann

Conference location
Friedrich-Schiller-University Jena
Institute of Earth Sciences
Wöllnitzer Str. 7
07749 Jena
Germany


Program

Thursday, 5th October


09:00 Field trip to the former uranium mining area in Eastern Thuringia
Starting point in front of building Wöllnitzer Str. 7 (conference location)

Excursion points
  • Tailings near Culmitzsch (Eastern Thuringia) and valley of the Lerchenbach creek
  • Boundary of the former waste rock dump "Nordhalde" near Ronneburg (Eastern Thuringia)
  • Acid Mine Drainage sites originating from seepage water from the former uranium leaching dump "Gessenhalde" near Ronneburg (Eastern Thuringia)
  • Test-field site of the Friedrich-Schiller university near Ronneburg (Eastern Thuringia)

We will return at about 13:30.

15:00 Opening of the meeting by the vice-rector for research of the Friedrich-Schiller University Prof. Dr. H.-J. Witte

Session 1 – Acid Mine Drainage: case studies

Chair: Georg Büchel

15:20 Bernhard Dold (University of Lausanne)
Hydrological model and the effect of the installation of a wetland on the marine shore porphyry copper deposit, Bahia de Ite, Peru

15:55 Dieter Rammlmair (Bundesanstalt für Geowissenschaften und Rohstoffe, Germany)
Processes of hardpan formation in extreme pH environments

16:30 Hans-Jörg Fengler (Wismut GmbH, Germany)
Die hydrogeologisch-hydrologischen Verhältnisse in der Endphase der Flutung im Ronneburger Bergbaurevier

16:55 Martin Lonschinski (University of Jena, Germany)
Bioremediation testing site Gessenwiese: heavy metals & radionuclides in the system soil-pore water


Session 2 – Rhizosphere interactions

Chair: Hans Bergmann

17:35 Wolfgang Merbach (Halle, Germany)
P-Erschließung durch Pflanzenwurzeln und ihre mögliche Bedeutung für die Ermittlung des pflanzenverfügbaren Phosphats im Boden

18:10 Rishi Kumar Behl (India)
Harnessing plant-microbe interactions in sustainable plant production

18:30 Felicia Gherghel (University of Jena, Germany)
Ectomycorrhiza community on Quercus petraea: diversity in a mining area

18:50 Kerstin Zirr (University of Jena, Germany)
Physiological and biochemical characterisation of the stress and adaptation situation of plants under the strain of competition



Get-together in the collection of mineralogy with
typical thuringian food and refreshments


Friday, 6th October

Session 3 – Geomicrobiology in reactive transport

Chair: Kirsten Küsel

08:30 Ron McLaren (University of Lincoln, New Zealand)
Transport of heavy metals through intact soil lysimeters

09:05 Maria Amoroso (University of Tucuman, Argentina)
Organochlorine pesticides biodegradation by actinomycetes

09:25 Götz Haferburg (University of Jena, Germany)
Impact of nickel on the metabolism of a metal resistant Streptomyces isolate from a mining area

09:45 Andre Schmidt
(University of Jena, Germany)
Heavy metal resistance mechanisms in Actinobacteria of the former uranium mining area near Ronneburg



Session 4 – Radionuclide retention

Chair: Georg Büchel

10:45
Manfred Anke (Jena, Germany)
Vorkommen und Transfer des Urans in der Nahrungskette in Deutschland und im Zwickau-Ronneburger Lebensraum

11:20 Virgil Iordache (University of Bucharest, Romania)
Mathematical modelling and bioremediation: potential and limits

11:40 Martin Reinicke (University of Jena, Germany)
Microbial monitoring in a heavy metal affected field site with cultivation-dependent (ADRA) and independent methods (Microarray)

12:00 Angelika Schöner (University of Jena, Germany)
Studies on the processes of uranium accumulation in wetlands



Session 5 – Biological fractionation

Chair: Erika Kothe

13:15
Khageshwar Singh Patel (Pt. Ravishkar Shukla University, India)
Phytoremediation of metals with medicinal and herbal plants

13:50 Lars Zeggel (University of Jena, Germany)
Phytoexctraction on alkaline substrates

14:10 Christian Lorenz (University of Jena, Germany)
Laboratory investigations on the interactions of soil, water and microorganisms with heavy metals and radionuclides

14:30 Dirk Merten
(University of Jena, Germany)
Bioavailability and fractionation of rare earth elements in a former uranium mining area affected by acid mine drainage



Session 6 – Transfer from unsaturated to saturated zone

Chair: Kai Uwe Totsche

15:25 Aurora Neagoe (University of Bucharest, Romania)
The effect of bioremediation methods involving different degrees of soil disturbance on the export of metals by leaching and by plant uptake

16:00
Anja Grawunder (University of Jena, Germany)
Groundwater hydrochemistry of the test site Gessenwiese

16:20 Markus Wehrer (University of Jena, Germany)
Mobilisation of heavy metals from technogenic porous materials - Process-quantification by column experiments and inverse simulations





17:30 Sightseeing: the famous castles in Dornburg and conference dinner


Saturday, 7th  October

09:00 Project discussions


 Graduiertenkolleg


 

 
Home Remediation Symposium Remediation Symposium 2006