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231224s2012 xx |||||o 00| ||eng c |
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|a 10.1016/j.wasman.2012.06.009
|2 doi
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|a pubmed24n0731.xml
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|a (NLM)22796015
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|a (PII)S0956-053X(12)00279-6
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|a DE-627
|b ger
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|a eng
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1 |
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|a Takahashi, Fumitake
|e verfasserin
|4 aut
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|a The weathering of municipal solid waste incineration bottom ash evaluated by some weathering indices for natural rock
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|c 2012
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Completed 22.04.2013
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|a Date Revised 25.11.2016
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2012 Elsevier Ltd. All rights reserved.
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|a The weathering of municipal solid waste incineration (MSWI) residues consists of complicated phenomena. This makes it difficult to describe leaching behaviors of major and trace elements in fresh/weathered MSWI bottom ash, which was relevant interactively to pH neutralization and formation of secondary minerals. In this study, mineralogical weathering indices for natural rock profiles were applied to fresh/landfilled MSWI bottom ash to investigate the relation of these weathering indices to landfill time and leaching concentrations of component elements. Tested mineralogical weathering indices were Weathering Potential Index (WPI), Ruxton ratio (R), Weathering Index of Parker (WIP), Vogt's Residual Index (V), Chemical Index of Alternation (CIA), Chemical Index of Weathering (CIW), Plagioclase Index of Alternation (PIA), Silica-Titania Index (STI), Weathering Index of Miura (Wm), and Weatherability index of Hodder (Ks). Welch's t-test accepted at 0.2% of significance level that all weathering indices could distinguish fresh and landfilled MSWI bottom ash. However, R and STI showed contrasted results for landfilled bottom ash to theoretical expectation. WPI, WIP, Wm, and Ks had good linearity with reclamation time of landfilled MSWI bottom ash. Therefore, these four indices might be applicable as an indicator to identify fresh/weathered MSWI bottom ash and to estimate weathering time. Although WPI had weak correlation with leachate pH, other weathering indices had no significant correlation. In addition, all weathering indices could not explain leaching concentration of Al, Ca, Cu, and Zn quantitatively. Large difficulty to modify weathering indices correctly suggests that geochemical simulation including surface sorption, complexation with DOM, and other mechanisms seems to be the only way to describe leaching behaviors of major and trace elements in fresh/weathered MSWI bottom ash
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Environmental Pollutants
|2 NLM
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| 650 |
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|a Waste Products
|2 NLM
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| 700 |
1 |
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|a Shimaoka, Takayuki
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Waste management (New York, N.Y.)
|d 1999
|g 32(2012), 12 vom: 20. Dez., Seite 2294-305
|w (DE-627)NLM098197061
|x 1879-2456
|7 nnns
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| 773 |
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|g volume:32
|g year:2012
|g number:12
|g day:20
|g month:12
|g pages:2294-305
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|u http://dx.doi.org/10.1016/j.wasman.2012.06.009
|3 Volltext
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