RECOBIO
Recycling of sequestrated CO2 by microbial-Biogeochemical transformation in the deep subsurface
The worldwide increasing energy demand, which will be mainly covered by fossil resources, calls for novel ideas for CO2 removal from the atmosphere by sequestration into the deep subsurface. CO2 transformation within the storage units by either mineral or microbial reactions could considerably improve sustainability of sequestrations concepts. The overall objective of the joint research project is to study the impact of sequestrated CO2 on the microbial biocenosis of relevant deep geological formations. Main focus is on the autothrophic methane formation, which provides the possibility of CO2 recycling to CH4 as a »fossil« energy resource. Furthermore, other biogeochemical processes, which either stimulate methanogenesis (e.g. hydrogen formation by water reduction at mineral surfaces) or yield a net CO2 reduction by itself (e.g. autotrophic sulphate reduction and mineral trapping in carbonates) will be investigated.
Project co-ordination:
Prof. Häfner und Dr. Hoth
Technische Universität Bergakademie Freiberg
Partners:
Technische Universität Bergakademie Freiberg
GEOS-Freiberg Ingenieurgesellschaft mbH
Dresdner Grundwasserforschungszentrum e.V. (DGFZ)
