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Feasibility study on nature based more efficient 2-step bioleaching technology producing methane gas and metal compounds from “low grade” multimetallic European ores/wastes containing organometallics.

Total Cost €


EC-Contrib. €






Project "MetLeach" data sheet

The following table provides information about the project.


Organization address
address: MAEALUSE 4
city: TALLIN
postcode: 12618
website: n.a.

contact info
title: n.a.
name: n.a.
surname: n.a.
function: n.a.
email: n.a.
telephone: n.a.
fax: n.a.

 Coordinator Country Estonia [EE]
 Project website
 Total cost 71˙429 €
 EC max contribution 50˙000 € (70%)
 Programme 1. H2020-EU.3.5. (SOCIETAL CHALLENGES - Climate action, Environment, Resource Efficiency and Raw Materials)
2. H2020-EU.2.3.1. (Mainstreaming SME support, especially through a dedicated instrument)
 Code Call H2020-SMEINST-1-2016-2017
 Funding Scheme SME-1
 Starting year 2017
 Duration (year-month-day) from 2017-08-01   to  2018-01-31


Take a look of project's partnership.

# participants  country  role  EC contrib. [€] 
1    BIOTATEC OU EE (TALLIN) coordinator 50˙000.00


 Project objective

SME is developing new nature based bioleaching routes for different organics and metals containing ores/wastes having metal compounds trapped in metallo-organic complexes. The effectiveness of the bioleaching process of ores considered so far as “low grade” is raised by 3 factors in BiotaTec (BT) approach: higher yield of metals, lower energy costs due to generation of methane gas, no additional costs for cooling of bioleaching. Bioleaching is growingly popular for processing low-grade ores as a cheap, reliable, efficient and environmentally friendly way to extract metals. In many ores, metals are present in 2 forms - as sulphides or in organo-metallic compounds called metallo-porphyrins. Although there is an extensive list of bioleaching studies using sulphide concentrates, much less is known about the microbial decomposition of organo-metallic complexes. The presence of organic material is believed to be the obstacle of efficient bioleaching of metals from specific European ores. The key component of the BT solutions is nutritional medium which is effective in activating special consortia of microorganisms. BT has found and deposited a mixture of hetherotrophic neutrophils and methanogenic archaea - a consortium of microorganisms that degrades the organic complex in anaerobic conditions at neutral pH and also leaches some metal compounds in the same anaerobic process. BiotaTec has drafted a new possible route for a low-grade ore /end of life products bioleaching process. The objective of a project is to evaluate the economic feasibility of the developed technological solution for ores in Europe - in situations where extracting valuable metals from ores has been either impossible or not cost-efficient and environmentally friendly due to large quantities of strong acids needed to break the complex. BiotaTec foresees becoming a provider of proprietary nutritional medium and support services for mining industries.

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The information about "METLEACH" are provided by the European Opendata Portal: CORDIS opendata.

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