Modeling biogechemical reactive transport in a fracture zone

Conference · Fri Jan 14 00:00:00 EST 2005

OSTI ID:842960

Molinero, Jorge; Samper, Javier; Guoxiang, Zhang

A coupled model of groundwater flow, reactive solute transport and microbial processes for a fracture zone of the Aspo site at Sweden is presented. This is the model of the so-called Redox Zone Experiment aimed at evaluating the effects of tunnel construction on the geochemical conditions prevailing in a fracture granite. It is found that a model accounting for microbially-mediated geochemical processes is able to reproduce the unexpected measured increasing trends of dissolved sulfate and bicarbonate. The model is also useful for testing hypotheses regarding the role of microbial processes and evaluating the sensitivity of model results to changes in biochemical parameters.

• Research Organization: Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 842960
• Report Number(s): LBNL-53205; TRN: US0503783
• Resource Relation: Conference: 10th International High-Level Radioactive Waste Management Conference, Las Vegas, NV, March 30-April 3, 2003
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE WASTES, AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
CONSTRUCTION
FRACTURES
HIGH-LEVEL RADIOACTIVE WASTES
MANAGEMENT
SENSITIVITY
SIMULATION
SOLUTES
SULFATES
SWEDEN
TESTING
TRANSPORT