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231224s2014 xx |||||o 00| ||eng c |
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|a 10.1016/j.wasman.2014.04.008
|2 doi
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|a pubmed25n0792.xml
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|a (DE-627)NLM237847973
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|a (NLM)24785363
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|a (PII)S0956-053X(14)00148-2
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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 |
1 |
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|a Lu, Duian
|e verfasserin
|4 aut
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|a Speciation of Cu and Zn during composting of pig manure amended with rock phosphate
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|c 2014
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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
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|2 rdacarrier
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|a Date Completed 28.01.2015
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|a Date Revised 16.11.2017
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2014 Elsevier Ltd. All rights reserved.
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|a Pig manure usually contains a large amount of metals, especially Cu and Zn, which may limit its land application. Rock phosphate has been shown to be effective for immobilizing toxic metals in toxic metals contaminated soils. The aim of this study work was to investigate the effect of rock phosphate on the speciation of Cu and Zn during co-composting of pig manure with rice straw. The results showed that composting process and rock phosphate addition significantly affected the changes of metal species. During co-composting, the exchangeable and reducible fractions of Cu were transformed to organic and residue fractions, thus the bioavailable Cu fractions were decreased. The rock phosphate addition enhanced the metal transformation depending on the level of rock phosphate amendment. Zinc was found in the exchangeable and reducible fractions in the compost. The bioavailable Zn fraction changed a little during the composting process. The composting process converted the exchangeable Zn fraction into reducible fraction. Addition of an appropriate amount (5.0%) of rock phosphate could advance the conversion. Rock phosphate could reduce metal availability through adsorption and complexation of the metal ions on inorganic components. The increase in pH and organic matter degradation could be responsible for the reduction in exchangeable and bioavailable Cu fractions and exchangeable Zn fraction in rock phosphate amended compost
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Composting
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|a Pig manure
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|a Rock phosphate
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|a Toxic metal
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|a Manure
|2 NLM
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|a Metals
|2 NLM
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|a Organic Chemicals
|2 NLM
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|a Phosphates
|2 NLM
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| 650 |
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|a Soil
|2 NLM
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| 650 |
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|a Copper
|2 NLM
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| 650 |
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|a 789U1901C5
|2 NLM
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| 650 |
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|a Zinc
|2 NLM
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| 650 |
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|a J41CSQ7QDS
|2 NLM
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| 700 |
1 |
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|a Wang, Lixia
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yan, Baixing
|e verfasserin
|4 aut
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| 700 |
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|a Ou, Yang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Guan, Jiunian
|e verfasserin
|4 aut
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| 700 |
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|a Bian, Yu
|e verfasserin
|4 aut
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| 700 |
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|a Zhang, Yubin
|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 34(2014), 8 vom: 11. Aug., Seite 1529-36
|w (DE-627)NLM098197061
|x 1879-2456
|7 nnns
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| 773 |
1 |
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|g volume:34
|g year:2014
|g number:8
|g day:11
|g month:08
|g pages:1529-36
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|u http://dx.doi.org/10.1016/j.wasman.2014.04.008
|3 Volltext
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|d 34
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