Valorisation of effluent from metal recovery plant

Marja Nappa, Kaisa Kiipula, Hanna Kyllönen, Tommi Kaartinen, Risto Pajarre, Petteri Kangas

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review


Resource efficiency in a mine was assessed in this study. Two new process concepts were screened; (i) valorising metals from mine raffinate with selective precipitation with different alkalis and with possible CO2 treatment and (ii) calcium removal through precipitation from neutralising pond water for improved performance of reverse osmosis. Both new concepts were evaluated with several alkalis. Concept screening was based on computational assessment and results were verified by experiments. Experiments showed qualitative agreement with findings from computational assessment and simultaneously promoted this computer-aided methodology for rapid screening of new processes.
Original languageEnglish
Title of host publication11th ICARD - IMWA 2018
PublisherCurran Associates Inc.
ISBN (Print)978-0-620-80650-3
Publication statusPublished - 2018
MoE publication typeA4 Article in a conference publication
Event11th ICARD IMWA MWD 2018 Annual Conference - Pretoria, South Africa
Duration: 10 Sep 201814 Sep 2018


Conference11th ICARD IMWA MWD 2018 Annual Conference
CountrySouth Africa

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