Continuous biological sulfate reduction from phosphogypsum waste leachate

Marja Salo; Jarno Mäkinen; Jason Yang; Matti Kurhila; Pertti Koukkari

doi:10.1016/j.hydromet.2018.06.020

Continuous biological sulfate reduction from phosphogypsum waste leachate

Marja Salo (Corresponding Author), Jarno Mäkinen, Jason Yang, Matti Kurhila, Pertti Koukkari

Geological Survey of Finland (GTK)

Research output: Contribution to journal › Article › Scientific › peer-review

15 Citations (Scopus)

Abstract

This work explores the possibility to utilize biological sulfate reduction in the treatment of phosphogypsum leachate, with a simultaneous removal of sulfate and phosphorus in continuous flow bioreactors. An efficient sulfate reduction was achieved and proof of elemental removal was acquired. The method described in this work is suggested to be applied as a passive type of installment with environmental pollution control as the primary target. In addition to sulfate reduction, rare earth elements (REE) were monitored during the process, as these valuable elements are commonly found in phosphogypsum waste.

Original language	English
Pages (from-to)	1-6
Number of pages	6
Journal	Hydrometallurgy
Volume	180
DOIs	https://doi.org/10.1016/j.hydromet.2018.06.020
Publication status	Published - 2 Jul 2018
MoE publication type	A1 Journal article-refereed

Keywords

phosphogypsum
biological sulfate reduction
rare earth elements

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.hydromet.2018.06.020Licence: CC BY-NC-ND

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AU - Salo, Marja

AU - Mäkinen, Jarno

AU - Yang, Jason

AU - Kurhila, Matti

AU - Koukkari, Pertti

PY - 2018/7/2

Y1 - 2018/7/2

N2 - This work explores the possibility to utilize biological sulfate reduction in the treatment of phosphogypsum leachate, with a simultaneous removal of sulfate and phosphorus in continuous flow bioreactors. An efficient sulfate reduction was achieved and proof of elemental removal was acquired. The method described in this work is suggested to be applied as a passive type of installment with environmental pollution control as the primary target. In addition to sulfate reduction, rare earth elements (REE) were monitored during the process, as these valuable elements are commonly found in phosphogypsum waste.

AB - This work explores the possibility to utilize biological sulfate reduction in the treatment of phosphogypsum leachate, with a simultaneous removal of sulfate and phosphorus in continuous flow bioreactors. An efficient sulfate reduction was achieved and proof of elemental removal was acquired. The method described in this work is suggested to be applied as a passive type of installment with environmental pollution control as the primary target. In addition to sulfate reduction, rare earth elements (REE) were monitored during the process, as these valuable elements are commonly found in phosphogypsum waste.

KW - phosphogypsum

KW - biological sulfate reduction

KW - rare earth elements

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JF - Hydrometallurgy

SN - 0304-386X

ER -

Continuous biological sulfate reduction from phosphogypsum waste leachate

Abstract

Keywords

UN SDGs

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