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240615s2024 xx |||||o 00| ||eng c |
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|a 10.1016/j.wasman.2024.06.002
|2 doi
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|a pubmed24n1467.xml
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|a (DE-627)NLM373639716
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|a (NLM)38875913
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|a (PII)S0956-053X(24)00355-6
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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 |
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|a González-Cortés, J J
|e verfasserin
|4 aut
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| 245 |
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|a Effect of toluene on siloxane biodegradation and microbial communities in biofilters
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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
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|2 rdacarrier
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|a Date Completed 10.07.2024
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|a Date Revised 10.07.2024
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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 The removal of volatile methyl siloxanes (VMS) from landfill biogas is crucial for clean energy utilization. VMS are usually found together with aromatic compounds in landfill biogas of which toluene is the major representative. In the present study, two biofilters (BFs) packed with either woodchips and compost (WC) or perlite (PER) were used to study the (co-) removal of octamethyltrisiloxane (L3) and octamethylcyclotetrasiloxane (D4) from gas in presence and absence of toluene, used as a representative aromatic compound. The presence of low inlet toluene concentrations (315 ± 19 - 635 ± 80 mg toluene m-3) enhanced the VMS elimination capacity (EC) in both BFs by a factor of 1.8 to 12.6. The highest removal efficiencies for D4 (57.1 ± 1.1 %; EC = 0.12 ± 0.01 gD4 m-3 h-1) and L3 (52.0 ± 0.6 %; EC = 0.23 ± 0.01 gL3 m-3 h-1) were observed in the BF packed with WC. The first section of the BFs (EBRT = 9 min), where toluene was (almost) completely removed, accounted for the majority (87.7 ± 0.6 %) of the total VMS removal. Microbial analysis revealed the impact of VMS and toluene in the activated sludge, showing a clear selection for certain genera in samples influenced by VMS in the presence (X2) or absence (X1) of toluene, such as Pseudomonas (X1 = 0.91 and X2 = 12.0 %), Sphingobium (X1 = 0.09 and X2 = 4.04 %), Rhodococcus (X1 = 0.42 and X2 = 3.91 %), and Bacillus (X1 = 7.15 and X2 = 3.84 %). The significant maximum EC values obtained by the BFs (0.58 gVMS m-3 h-1) hold notable significance in a combined system framework as they could enhance the longevity of traditional physicochemical methods to remove VMS like activated carbon in diverse environmental scenarios
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|a Journal Article
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|a Biofilter
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|a Microbial population
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|a Pseudomonas
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|a Toluene
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|a Volatile methyl siloxanes
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|a Toluene
|2 NLM
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|a 3FPU23BG52
|2 NLM
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| 650 |
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|a Siloxanes
|2 NLM
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| 650 |
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|a Air Pollutants
|2 NLM
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| 700 |
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|a Lamprea-Pineda, P A
|e verfasserin
|4 aut
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|a Valle, A
|e verfasserin
|4 aut
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|a Ramírez, M
|e verfasserin
|4 aut
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|a Van Langenhove, H
|e verfasserin
|4 aut
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|a Demeestere, K
|e verfasserin
|4 aut
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|a Walgraeve, C
|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 186(2024) vom: 15. Juli, Seite 119-129
|w (DE-627)NLM098197061
|x 1879-2456
|7 nnns
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| 773 |
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|g volume:186
|g year:2024
|g day:15
|g month:07
|g pages:119-129
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|u http://dx.doi.org/10.1016/j.wasman.2024.06.002
|3 Volltext
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