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231224s2017 xx |||||o 00| ||eng c |
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|a 10.1016/j.wasman.2016.11.030
|2 doi
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|a pubmed24n0889.xml
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|a (DE-627)NLM266777481
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|a (NLM)27912988
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|a (PII)S0956-053X(16)30689-4
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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1 |
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|a Parés Viader, Raimon
|e verfasserin
|4 aut
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|a Sequential electrodialytic recovery of phosphorus from low-temperature gasification ashes of chemically precipitated sewage sludge
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|c 2017
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 21.06.2017
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|a Date Revised 21.06.2017
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2016 Elsevier Ltd. All rights reserved.
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|a Phosphorus recycling from secondary materials like sewage sludge ashes offers an alternative to mining of phosphates from primary resources and a mean to counteract the current phosphorous rock depletion concern. A separation of P from the bulk ash is normally required, due to its low plant availability and the presence of heavy metals. Previously, more than 80% of P was recovered from incineration sewage sludge ashes using a two-compartment electrodialytic cell. In contrast, the recovery was below 30% for ashes from low-temperature gasification using the same setup. The low recovery was due to a high presence of Al- and Fe(III)-P bindings. In the present study, an electrodialytic process combining sequentially a pair of two-compartment cells allowed a recovery of up to 70% of phosphorus from these ashes. The use of a second cell, where the ash was suspended in an alkaline solution, allowed the P solubilisation from aluminium and ferric phosphates. In addition, P was separated from most metals as they became insoluble under the prevailing chemical environment. The obtained ratio of Al, Fe, Mg and most heavy metals to P was comparable to wet process phosphoric acid. Therefore, this sequential process was found to be suitable to recycle P and potentially use it in the production of common fertilizers like diammonium phosphate
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|a Journal Article
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|a Electrodialysis
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|a Heavy metals
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|a Iron phosphates
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|a Low-temperature gasification
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|a Phosphorus
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|a Sewage sludge ash
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|a Aluminum Compounds
|2 NLM
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|a Ferric Compounds
|2 NLM
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|a Phosphates
|2 NLM
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|a Sewage
|2 NLM
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|a Phosphorus
|2 NLM
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| 650 |
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|a 27YLU75U4W
|2 NLM
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| 650 |
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|a aluminum phosphate
|2 NLM
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| 650 |
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|a F92V3S521O
|2 NLM
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| 650 |
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|a ferric phosphate
|2 NLM
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| 650 |
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|a N6BAA189V1
|2 NLM
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| 700 |
1 |
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|a Jensen, Pernille Erland
|e verfasserin
|4 aut
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| 700 |
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|a Ottosen, Lisbeth M
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Ahrenfeldt, Jesper
|e verfasserin
|4 aut
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|a Hauggaard-Nielsen, Henrik
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Waste management (New York, N.Y.)
|d 1999
|g 60(2017) vom: 05. Feb., Seite 211-218
|w (DE-627)NLM098197061
|x 1879-2456
|7 nnns
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| 773 |
1 |
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|g volume:60
|g year:2017
|g day:05
|g month:02
|g pages:211-218
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| 856 |
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|u http://dx.doi.org/10.1016/j.wasman.2016.11.030
|3 Volltext
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|d 60
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