A facility for the recovery of valuable materials from sulphide rinsing tailings and their sustainable remediation

Mining activities and ore processing generate huge quantities of mine tailings, which still contain significant amounts of valuable metals. In previous projects, a pilot plant for bioleaching and the extraction of valuable metals was constructed (TRL 5). Within the ReMiningPlus project, the process technology will be enhanced to establish a holistic process, which comprises the recovery of valuable metals, such as In, Zn, Pb, Cu and Co, the reuse of the solid material (e.g. as building material) as well as the immobilization of hazardous elements. The pilot plant is semi-mobile and will be located close to Freiberg at the mine tailing “Davidschachthalde” (TRL 6). Due to the unique concept, it can also be used for comparable studies at any other location.

The ReMiningPlus project demonstrates an innovative solution for the remediation of mine tailings. The pilot facility delivers detailed process data, which enable an assessment of economic and environmental aspects (life cycle assessment). Furthermore, the Ore Mountains region benefits from the project by gaining know-how about the development of pioneering technologies and the construction of advanced pilot faclities for the remediation of mining residues.

Project Overview

  • Time span
    est. from 01.01.2021 to 31.08.2023
  • Pseudonym
  • Project type
    Mine remediation

R & D Locations

Reusable Materials


Dr. Jana Pinka

Telefon: +49 3731 369269

Go back


Helmholtz Institute Freiberg for Resource Technology (HIF) will celebrate its birthday together with Saxonian Minister President Michael Kretschmer and interested guests on September 9, 2021. The number 10 plays an important role for both the Helmholtz-Zentrum Dresden-Rossendorf (HZDR) and the Helmholtz Institute Freiberg for Resource Technology (HIF). In addition to the 10-year affiliation of the HZDR with the Helmholtz Association, the HIF looks back on 10 very successful years at the research location of Freiberg. Furthermore, the HIF inaugurates its new metallurgy pilot plant on September 9, 2021. The inauguration marks another milestone in the development of a unique campus for resource technology and progresses sustainability steadily at HIF. The HIF will celebrate this progress and cordially invites you!

The new metallurgy pilot plant at HIF. ©HZDR/599Media

Can the recycling of mining waste become a new business? That was the main question addressed in the Lunch Event & Debate organised by the Horizon2020 NEMO project on April 27, 2021.

Video link:

You can find more information on the website of the project Nemo (

Eight partner from science and industry participate in the research project “TerZinn – Technologieentwicklung und Erprobung für nachhaltiges Wassermanagement und additive Rohstoffgewinnung am Modellstandort Zinnerzgrube Ehrenfrieders-dorf“: Zinnerz Ehrenfriedersdorf GmbH, G.E.O.S. Ingenieurgesellschaft mbH, Wis-mut GmbH, BIT Tiefbauplanung GmbH, ibes AG, Kurt-Schwabe-Institut für Mess- und Sensortechnik Meinsberg e.V., TU Bergakademie Freiberg and the Fraunhofer Institute for Ceramic Technologies and Systems IKTS. The Federal Ministry of Edu-cation and Research (BMBF) funds the project with around one million euros. TER-ZINN belongs to the alliance “recomine – rethinking resources”, which works on the subject of mining waste at the intersection of environmental technology, resource technology and digitalization.

Complete press release:

On 18th of February 2021 the recomine-project TERZinn starts as the first of currently eight selected projects of the first recomine-call. Over the next three years, a digital underground measurement system will be developed and tested in the historic Ehrenfriedersdorf mine site. Newly developed sensors will record current information from the incoming mine water and pass it on to a modular water treatment system, which will then decide how heavily the water needs to be treated depending on the water contamination (e.g. with Arsenic). The system will then be further developed for use in the Ore Mountains and around the world, and will sustainably improve water quality in many mining regions.