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231224s2016 xx |||||o 00| ||eng c |
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|a 10.1080/09593330.2016.1146341
|2 doi
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|a pubmed25n0856.xml
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|a (DE-627)NLM256966699
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|a (NLM)26824137
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
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|a Vemic, M
|e verfasserin
|4 aut
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| 245 |
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|a Recovery of molybdenum, nickel and cobalt by precipitation from the acidic leachate of a mineral sludge
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|c 2016
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 03.02.2017
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|a Date Revised 03.02.2017
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a The objective of this study was to investigate the recovery potential of molybdenum (Mo), nickel (Ni) and cobalt (Co) from synthetic and real acidic leachate of a mineral sludge from a metal recycling plant by sulfide precipitation. The operational parameters (metal sulfide (M/S) ratio 0.1-1, agitation speed 0-100 rpm, contact time 15-120 min and pH 1-5) were optimized in batch conditions on synthetic metal leachate (0.5 M HNO3, Mo = 101.6 mg L(-1), Ni = 70.8 mg L(-1), Co = 27.1 mg L(-1)) with a 0.1 M Na2S solution. Additionally, recovery of the target metals was theoretically simulated with a chemical equilibrium model (Visual MINTEQ 3.0). The optimized Na2S precipitation of metals from the synthetic leachate resulted in the potential selective recovery of Mo at pH 1 (98% by modeling, 95% experimental), after simultaneous precipitation of Ni and Co as sulfide at pH 4 (100% by modeling, 98% experimental). Metal precipitation from the real leachate (18 M H2SO4, Mo = 10,160 mg L(-1), Ni = 7,080 mg L(-1), Co = 2,710 mg L(-1)) was performed with 1 M Na2S, and resulted in a maximal Mo recovery at pH 2 (50%), while maximal recoveries of Ni and Co were observed at pH 4 (56% and 60%, respectively). Real leachate gave a lower metals recovery efficiency compared with synthetic leachate, which can be attributed to changes in the pH, nature of leachant, co-precipitation of Zn and competition for S(2-) ions
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|a Journal Article
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|a Molybdenum
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|a cobalt
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|a nickel
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|a recovery
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4 |
|a sulfide precipitation
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|a Industrial Waste
|2 NLM
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|a Metals, Heavy
|2 NLM
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| 650 |
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|a Sewage
|2 NLM
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| 700 |
1 |
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|a Bordas, F
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Comte, S
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Guibaud, G
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Lens, P N L
|e verfasserin
|4 aut
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| 700 |
1 |
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|a van Hullebusch, E D
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Environmental technology
|d 1998
|g 37(2016), 17 vom: 26. Sept., Seite 2231-42
|w (DE-627)NLM098202545
|x 1479-487X
|7 nnns
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| 773 |
1 |
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|g volume:37
|g year:2016
|g number:17
|g day:26
|g month:09
|g pages:2231-42
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|u http://dx.doi.org/10.1080/09593330.2016.1146341
|3 Volltext
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