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From Waste to Wealth

2013-2015: GNS Science, University of Waikato, University of Auckland, Hill Technology & Management Ltd
Funding: MBIE; Contact: Ed Mroczek

This two-year research programme aimed to determine practical methods for economically recovering minerals, metals, gases and trace elements from geothermal fluids. Rather than injecting ‘waste’ fluids from geothermal power stations back into the ground, the project team aimed to support the realisation of commercial value from these waste products, and make geothermal energy generation and related industries more sustainable.

The research assessed opportunities and barriers to investment, and identified simple cost-effective processing technologies for mineral extraction from geothermal fluid sources. It also provided greater understanding of the economic viability, market drivers, and regulatory framework likely to influence the successful implementation of such technologies. The interdisciplinary team has expertise in chemistry, process engineering, materials, law, marketing, economics, and financial modelling. The programme is supported by geothermal production companies, regional councils, Māori trusts, regional development groups, and other industries.


February 2015:
May 2015:
June 2015:
July 2015:
July 2015:
December 2016:

Conference Papers

World Geothermal Congress 2015: Overview of the research programme

NZ Geothermal Workshop 2015: Final results and summary of forward path for research


Download: W2W Workshop Flier July 2015.pdf (609.74 kB)