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231224s2015 xx |||||o 00| ||eng c |
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|a 10.1016/j.wasman.2015.09.037
|2 doi
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|a pubmed25n0844.xml
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|a (PII)S0956-053X(15)30146-X
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|e rakwb
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|a eng
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|a Raga, Roberto
|e verfasserin
|4 aut
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|a Landfill aeration for emission control before and during landfill mining
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|c 2015
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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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|a Date Completed 16.08.2016
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|a Date Revised 10.11.2015
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2015 Elsevier Ltd. All rights reserved.
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|a The landfill of Modena, in northern Italy, is now crossed by the new high velocity railway line connecting Milan and Bologna. Waste was completely removed from a part of the landfill and a trench for the train line was built. With the aim of facilitating excavation and further disposal of the material extracted, suitable measures were defined. In order to prevent undesired emissions into the excavation area, the aerobic in situ stabilisation by means of the Airflow technology took place before and during the Landfill Mining. Specific project features involved the pneumatic leachate extraction from the aeration wells (to keep the leachate table low inside the landfill and increase the volume of waste available for air migration) and the controlled moisture addition into a limited zone, for a preliminary evaluation of the effects on process enhancement. Waste and leachate were periodically sampled in the landfill during the aeration before the excavation, for quality assessment over time; the evolution of biogas composition in the landfill body and in the extraction system for different plant set-ups during the project was monitored, with specific focus on uncontrolled migration into the excavation area. Waste biological stability significantly increased during the aeration (waste respiration index dropped to 33% of the initial value after six months). Leachate head decreased from 4 to 1.5m; leachate recirculation tests proved the beneficial effects of moisture addition on temperature control, without hampering waste aerobization. Proper management of the aeration plant enabled the minimization of uncontrolled biogas emissions into the excavation area
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|a Journal Article
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|a Landfill aeration
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|a Landfill emissions
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|a Landfill mining
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|a Leachate extraction from gas wells
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|a Moisture addition
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|a Waste biological stability
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|a Biofuels
|2 NLM
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|a Cossu, Raffaello
|e verfasserin
|4 aut
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|a Heerenklage, Joern
|e verfasserin
|4 aut
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| 700 |
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|a Pivato, Alberto
|e verfasserin
|4 aut
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| 700 |
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|a Ritzkowski, Marco
|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 46(2015) vom: 01. Dez., Seite 420-9
|w (DE-627)NLM098197061
|x 1879-2456
|7 nnns
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|g volume:46
|g year:2015
|g day:01
|g month:12
|g pages:420-9
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|u http://dx.doi.org/10.1016/j.wasman.2015.09.037
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