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20240601232848.0 |
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240601s2024 xx |||||o 00| ||eng c |
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|a 10.1177/0734242X241252913
|2 doi
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|a pubmed24n1425.xml
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|a (DE-627)NLM373081707
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|a (NLM)38819926
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Nilsson, Charlotte
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Phosphorus speciation in sewage sludge and their ashes after incineration as a function of treatment processes
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| 264 |
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1 |
|c 2024
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| 336 |
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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
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|2 rdacarrier
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|a Date Revised 31.05.2024
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a Phosphorus (P) is a key component in agricultural fertilizers, but it is also a scarce resource, why its recycling has been thoroughly investigated and one promising resources is sewage sludge. Because of stricter regulations in terms of sludge disposal, thermal treatment (e.g. incineration) has become an attractive option. The incineration process alters the chemical speciation of P in favour to calcium-associated (apatite, apatite phosphorus (AP)) species, which is preferred for P recovery. In order to achieve qualitatively transformation, it is important to identify limiting or promoting factors. This study reports on the impact of iron, aluminium and calcium on the transformation of iron- and aluminium-phosphate (NAIP) to AP species, assessed by studying sludge and ash from 10 municipal wastewater treatment plants in Sweden. The effect of iron and aluminium added in the treatment processes was also evaluated. The obtained results show that high calcium concentration favours formation of AP species in both sludge and ashes, whereas high concentration of iron and aluminium favours formation of NAIP species in the sludge. The transformation from NAIP to AP species is hampered by aluminium, irrespectively of its origin, whereas no such correlations could be seen for iron. Therefore, in order to enable efficient P recovery from sewage sludge ash, the amount of aluminium added in the treatment process, as well as its concentration in influent streams to the treatment plants, must be limited
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| 650 |
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4 |
|a Journal Article
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| 650 |
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4 |
|a Sewage sludge
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| 650 |
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4 |
|a aluminium
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| 650 |
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4 |
|a apatite
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| 650 |
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4 |
|a incineration
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| 650 |
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4 |
|a phosphorus
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| 650 |
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4 |
|a recirculation
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| 650 |
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4 |
|a speciation
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| 650 |
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4 |
|a sustainability
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| 700 |
1 |
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|a Karlsson, Stefan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Allard, Bert
|e verfasserin
|4 aut
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| 700 |
1 |
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|a von Kronhelm, Thomas
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA
|d 1991
|g (2024) vom: 31. Mai, Seite 734242X241252913
|w (DE-627)NLM098164791
|x 1096-3669
|7 nnns
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| 773 |
1 |
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|g year:2024
|g day:31
|g month:05
|g pages:734242X241252913
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| 856 |
4 |
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|u http://dx.doi.org/10.1177/0734242X241252913
|3 Volltext
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