Science, Space and Technology News 2023
“In theory, geothermal power plants in the Upper Rhine Valley and Northern German Basin might cover between 2 and 12 percent of Germany’s annual lithium demand,” says Valentin Goldberg from KIT’s Institute of Applied Geosciences .
“The model developed for our study describes lithium extraction in the Upper Rhine Valley. But parameters are chosen such that they can also be transferred to other joint systems.” “The lithium dissolved in water exists in a widely branched network of joints and cavities in the rock. However, it can only be accessed at certain points via individual wells,” says Dr. Fabian Nitschke, AGW, who was also involved in this study. “The reservoir dimension, hence, depends on the amount of water that can be accessed hydraulically via wells.”
“We use a dynamic transport model adapted to underground conditions in the Upper Rhine Valley. It couples thermal, hydraulic, and chemical processes. Similar models are known from petroleum and gas industry, but have not yet been applied to lithium,” Nitschke points out.
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