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Selective recovery ...
Selective recovery of nickel over iron from a nickel-iron solution using microbial sulfate reduction in a gas-lift bioreactor
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- Bijmans, Martijn FM (författare)
- Univ Wageningen & Res Ctr, Wageningen, Netherlands
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- van Helvoort, Pieter-Jan (författare)
- Univ Wageningen & Res Ctr, Wageningen, Netherlands
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- Dar, Shabir A (författare)
- Umeå universitet,Institutionen för molekylärbiologi (Teknisk-naturvetenskaplig fakultet),Umeå University
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- Dopson, Mark (författare)
- Umeå universitet,Institutionen för molekylärbiologi (Teknisk-naturvetenskaplig fakultet),Umeå University
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- Lens, Piet NL (författare)
- Univ Wageningen & Res Ctr, Wageningen, Netherlands
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- Buisman, Cees JN (författare)
- Univ Wageningen & Res Ctr, Wageningen, Netherlands
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(creator_code:org_t)
- IWA Publishing, 2009
- 2009
- Engelska.
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Ingår i: Water Research. - : IWA Publishing. - 0043-1354 .- 1879-2448. ; 43:3, s. 853-861
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Process streams with high concentrations of metals and sulfate are characteristic for the mining and metallurgical industries. This study aims to selectively recover nickel from a nickel-iron-containing solution at pH 5.0 using a single stage bioreactor that simultaneously combines low pH sulfate reduction and metal-sulfide formation. The results show that nickel was selectively precipitated in the bioreactor at pH 5.0 and the precipitates consisted of >= 83% of the nickel content. The nickel-iron precipitates were partly crystalline and had a metal/sulfur ratio of 1, suggesting these precipitates were NiS and FeS. Experiments focusing on nickel recovery at pH 5.0 and 5.5 reached a recovery of >99.9%, resulting in a nickel effluent concentration <0.05 mu M. The mixed microbial population included known sulfate reducers and acetogens. This study shows that selective metal precipitation in a single stage sulfate reducing bioreactor operated at low pH has the potential to produce metal-sulfides that can be used by the metallurgical industry as a resource for metal production.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Environmental Sciences (hsv//eng)
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Oceanografi, hydrologi och vattenresurser (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Oceanography, Hydrology and Water Resources (hsv//eng)
- NATURVETENSKAP -- Biologi -- Mikrobiologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Microbiology (hsv//eng)
Nyckelord
- Metal recovery
- Sulfate reduction
- Metal-sulfide
- Hydrogen
- Nickel
- Iron
- Mikrobiologi
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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