Mineral extraction from geothermal brines in New Zealand: 2016 update

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Climo, M.; Mrockzek, E.K.; Carey, B.S. 2016 Mineral extraction from geothermal brines in New Zealand: 2016 update. Lower Hutt, N.Z.: GNS Science. GNS Science report 2016/28 26 p.; doi: 10.21420/G29G60

Abstract: New Zealand’s geothermal brines offer potential for the extraction of various metals and minerals, given both the fluid compositions and volumes discharged. The realisation of commercial value from the extracted constituents could create new industries, support economic development, and potentially provide additional revenue streams for geothermal energy generation and related industries. This 2013-2015 New Zealand Government-funded research programme “From Waste to Wealth” (Ministry of Business, Innovation and Employment research contract C05X1307), identified potential processing technologies and sought to develop a greater understanding of the barriers and success factors likely to influence the implementation of such technologies. This report is the final summary and compilation of this research programme. It summarises the four core studies completed to date and compiles stakeholder feedback on the findings. Also, recommendations are made for New Zealand’s future research and investment in this area. (auth)