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231224s2017 xx |||||o 00| ||eng c |
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|a 10.1016/j.wasman.2017.05.029
|2 doi
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|a pubmed25n0908.xml
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|a (PII)S0956-053X(17)30352-5
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|a eng
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|a Alam, Qadeer
|e verfasserin
|4 aut
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|a A two-stage treatment for Municipal Solid Waste Incineration (MSWI) bottom ash to remove agglomerated fine particles and leachable contaminants
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|c 2017
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|a Text
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|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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|a Date Completed 17.01.2018
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|a Date Revised 02.12.2018
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2017 Elsevier Ltd. All rights reserved.
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|a In this lab study, a two-stage treatment was investigated to achieve the valorization of a municipal solid waste incineration (MSWI) bottom ash fraction below 4mm. This fraction of MSWI bottom ash (BA) is the most contaminated one, containing potentially toxic elements (Cu, Cr, Mo and Sb), chlorides and sulfates. The BA was treated for recycling by separating agglomerated fine particles (≤125µm) and soluble contaminants by using a sequence of sieving and washing. Initially, dry sieving was performed to obtain BA-S (≤125µm), BA-M (0.125-1mm) and BA-L (1-4mm) fractions from the original sample. The complete separation of fine particles cannot be achieved by conventional sieving, because they are bound in a cementitious matrix around larger BA grains. Subsequently, a washing treatment was performed to enhance the liberation of the agglomerated fine particles from the BA-M and BA-L fractions. These fine particles were found to be similar to the particles of BA-S fraction in term of chemical composition. Furthermore, the leaching behavior of Cr, Mo Sb, chlorides and sulfates was investigated using various washing parameters. The proposed treatment for the separation of agglomerated fine particles with dry sieving and washing (L/S 3, 60min) was successful in bringing the leaching of contaminants under the legal limit established by the Dutch environmental norms
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|a Journal Article
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|a Chloride leaching
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|a MSWI bottom ash
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|a Potentially toxic elements
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|a Washing
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|a Coal Ash
|2 NLM
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|a Solid Waste
|2 NLM
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|a Florea, M V A
|e verfasserin
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|a Schollbach, K
|e verfasserin
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|a Brouwers, H J H
|e verfasserin
|4 aut
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|i Enthalten in
|t Waste management (New York, N.Y.)
|d 1999
|g 67(2017) vom: 15. Sept., Seite 181-192
|w (DE-627)NLM098197061
|x 1879-2456
|7 nnns
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|g volume:67
|g year:2017
|g day:15
|g month:09
|g pages:181-192
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|u http://dx.doi.org/10.1016/j.wasman.2017.05.029
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