G.E.O.S. Ingenieurgesellschaft mbH

G.E.O.S. Ingenieurgesellschaft mbH is an independent, mining & environmental consulting and engineering company and operates as a service provider for other companies and government authorities in many countries of Europe, Asia and Africa for more than 20 years. The company’s core activities are service solutions in the fields of geological exploration and evaluation of natural mineral and energetic resources, mine planning and approval processes, environmental impact assessments as well as maintenance and revitalisation after finished exploitation (remediation investigations and planning for mining legacies and contaminated sites, concepts for site development, landfill site planning). Besides many others, the company is highly active in the fields of mine water treatment, raw material processing and geobiotechnology, which are conducted by the department Process Development and Biotechnology. The department was and currently is actively involved in several national and European research projects and has successfully planned, operated and/or optimised several pilot plants resulting in valuable experiences for the EcoMetals project (see below).

The work of the department is focused on the physicochemical and biotechnological treatment/processing of mine water, sludge and waste as well as primary and secondary raw materials. The department’s special services are 1) the design, engineering, consulting, process development and optimisation of active/passive treatment systems and pilot plants, 2) optimisation and improvement of existing water treatment plants including technology consulting and process supervision and 3) the application of physicochemical and microbial (bioleaching) processes for treatment, recycling and remediation techniques (feasibility studies and process development for primary and secondary raw materials (tailings, ash), extraction of valuable metals and/or separation of impurities and/or harmful/toxic substances). Relevant projects/pilot plants (selection): Bioshale (EU, 2004-2007); EHS (2005-2007); SURFTRAP (BMBF, 2008-2011; E. Janneck et al., Microbial synthesis of schwertmannite from lignite mine water and its utilization for removal of arsenic from mine waters and for production of iron pigments, IMWA, Canada, 2010); ProMine (EU, 2009-2013), Hybrid lithium recovery (2010-2013), Recovery of strategic metals from Saxon mining dumps (r3-project, 2012-2015), Rosia Montana Gold Project (2011/2012, pilot plant; E. Janneck et al.: Ettringite Precipitation vs. Nano-Filtration for Efficient Sulphate Removal, IMWA, Western Australia, 2012)

Work packages

  • Work package 1: Involved in description and selection of resources (Task 1.1) and chemical pretreatment such as carbonate dissolution with inorganic/ organic acids, biologically produced acids, chemical leaching under elevated CO2 pressure (task 1.3)

  • Work package 3: WP leader; development of a (bio)hydrometallurgical strategy (incl. large-scale application as pilot plant) for 1) stepwise separation and precipitation of metals from the leaching solution, 2) dissolution of remaining valuable metals from leaching residues and 3) minimization of toxic elements content; enable the recovery of precious metals as complete as possible

  • Work package 5: involved in process integration and sustainability assessment: life cycle analysis (task 5.4), economic analysis (task 5.5) and compliance with current environmental regulations (task 5.7)

G.E.O.S. Ingenieurgesellschaft mbH
Schwarze Kiefern 2
09633 Halsbrücke


Dr. René Kermer

+49 3731 369271

Helmholtz-Institut Freiberg für Ressourcentechnologie

Halsbrücker Str. 34
09599 Freiberg, Germany


BRGM - Bureau de Recherches Géologiques et Minières

avenue Claude Guillemin, BP 36009
45060 Orléans Cedex 2, France


EcoMetals is a transnational research project aiming at the development of innovative biohydrometallurgical processes for the extraction of copper and other (associated) metals from coppershale.. The project receives funding from the French ANR (L’Agence nationale de la recherche) and the German Ministry of Education and Research BMBF (Bundesministerium für Bildung und Forschung) under the reference number 033RF001.

In total, 17 partners from science and industry collaborate in this project. Start of the project was in February 2014 and it will run until June 2017. 

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