Metal Mine Remediation Project

Treatment of non-coal mine water - establishing new pilot trials using alternative technologies

 

This is a 3 year study into the application of carbon materials in metal mine remediation, the project funded by the Department for Environment Food and Rural Affairs (DEFRA) and commissioned by Aberystwyth University. The project  will combine the resources of the Department of Geography and Earth Science (DGES) and those of the Institute of Biological, Environmental and Rural Science (IBERS).

This collaboration will bring together the geochemical knowledge of UK metal mines and the experience in thermochemical conversion of biomass with the aim of producing a low cost adsorption material capable of treating metal rich mine effluents. The project will establish an understanding of the treatment capabilities of biochar through the development and monitoring of field systems.

The issue arises from the exploitation of the UK orefields in the 18th and 19th century which has left widespread pollution and significant ecological harm. In total there are 315 water bodies covering nearly 3000km of rivers that have been identified as at risk of failing EU Water framework directive standards as a direct result of abandoned metal mines. Some of the most recalcitrant environmental pollutants are zinc and cadmium and with no established method of remediation there is a need for research into new technology.  

Key aims and objectives

  • Obtain a realistic understanding of the treatment capabilities of biochar including the effluent quality, size requirement and disposal of contaminated material.
  • Produce a tailored material through the control of feed material and the pyrolysis conditions with the aim of promoting metal retention properties.
  • Manufacture and develop a field trial capable of operating with little maintenance over extended periods.

Further Information