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20240811232218.0 |
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240715s2024 xx |||||o 00| ||eng c |
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|a 10.1016/j.wasman.2024.07.002
|2 doi
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|a pubmed24n1498.xml
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|a (DE-627)NLM374916098
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|a (NLM)39003880
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|a (PII)S0956-053X(24)00387-8
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a van den Brink, J M
|e verfasserin
|4 aut
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|a Long-term observations on the hydraulic performance of a combined capillary barrier-methane oxidation landfill cover system
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|c 2024
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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
|b cr
|2 rdacarrier
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|a Date Completed 10.08.2024
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|a Date Revised 10.08.2024
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2024. Published by Elsevier Ltd.
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|a This study quantifies the field hydraulic performance of a dual-functionality landfill cover, combining microbial methane oxidation with water diversion using a capillary barrier. The investigated 500 m2 test field, constructed on a landfill in the Netherlands, consisted of a cover soil optimised for methane oxidation, underlain by a sandy capillary layer and a gravelly capillary block. Outflows from these layers were measured between 2009 and 2023. Average precipitation was 848 mm/a, evapotranspiration, diverted infiltration and breakthrough amounted to 504 (59.4 %), 282 (33.3 %) and 62 (7.3 %) mm/a, respectively. On average, the capillary barrier diverted 82 % of the inflow into the capillary layer. Breakthrough occurred mainly from October to March when evapotranspiration was low and the maximum water storage capacity of the cover soil was reached. During this period, inflow into the capillary barrier exceeded its diversion capacity, caused by the relatively high hydraulic conductivity of the cover soil due to its optimisation for gas transport. The diversion capacity declined drastically in the year after construction and increased again afterwards. This was attributed to suffusion of sand from the capillary layer into the capillary block and subsequent washout to greater depths or the influence of iron precipitates at the bottom of the capillary layer. The effect of a more finely grained methane oxidation layer on the hydraulic and methane oxidation performance should be investigated further. These measures could further improve the combined performance of the dual functionality landfill cover system under the given conditions of a temperate climate
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|a Journal Article
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|a Capillary barrier system
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|a Diversion capacity
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|a Field test
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|a Hydraulic conductivity
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|a Landfill cover
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|a Methane oxidation
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|a Water balance
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|a Methane
|2 NLM
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| 650 |
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|a OP0UW79H66
|2 NLM
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| 650 |
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|a Soil
|2 NLM
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1 |
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|a Scharff, H
|e verfasserin
|4 aut
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|a Steinert, B
|e verfasserin
|4 aut
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|a Melchior, S
|e verfasserin
|4 aut
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|a Hrachowitz, M
|e verfasserin
|4 aut
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|a Heimovaara, T J
|e verfasserin
|4 aut
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|a Gebert, J
|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 187(2024) vom: 01. Aug., Seite 109-118
|w (DE-627)NLM098197061
|x 1879-2456
|7 nnns
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| 773 |
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|g volume:187
|g year:2024
|g day:01
|g month:08
|g pages:109-118
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|u http://dx.doi.org/10.1016/j.wasman.2024.07.002
|3 Volltext
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|d 187
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|h 109-118
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