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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1177/0734242X20904430
|2 doi
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|a pubmed24n1023.xml
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|a (DE-627)NLM306910683
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|a (NLM)32098593
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|a DE-627
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|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Solinger, Rebecca
|e verfasserin
|4 aut
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| 245 |
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|a STARx Hottpad for smoldering treatment of waste oil sludge
|b Proof of concept and sensitivity to key design parameters
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|c 2020
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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 05.05.2020
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|a Date Revised 05.05.2020
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Growing stockpiles of waste oil sludge (WOS) are an outstanding problem worldwide. Self-sustaining Treatment for Active Remediation applied ex situ (STARx) is a treatment technology based on smoldering combustion. Pilot-scale experiments for the STARx Hottpad prove this new concept for the mobile treatment of WOS mixed intentionally with sand or contaminated soil. The experiments also allowed for the calibration and validation of a smoldering propagation numerical model. The model was used to systematically explore the sensitivity of Hottpad performance to system design, operational parameters, and environmental factors. Pilot-scale (~1.5 m width) simulations investigated sensitivity to injected air flux, WOS saturation, heterogeneity of intrinsic permeability, and heterogeneity of WOS saturation. Results reveal that Hottpad design is predicted to be successful for WOS treatment across a wide range of scenarios. The operator can control the rate of WOS destruction and extent of treatment by increasing the air flux injected into the bed. The potential for smoldering channeling to develop was demonstrated for the first time. Under certain conditions, such as WOS saturations of 80%, high heterogeneity of WOS saturations, or moderate to high heterogeneity of soil permeability, smoldering channeling was predicted to accelerate to the point that remedial performance was degraded. Field-scale simulations (~10 m width) predicted successful treatment, with WOS destruction rates an order of magnitude higher than the pilot-scale and treatment times increasing only linearly with bed height. This work is a key step toward the design and effective operation of field STARx Hottpad systems for eliminating WOS
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|a Journal Article
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|a Thermal treatment
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|a contaminated soil
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|a numerical modeling
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|a smoldering combustion
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|a waste oil sludge
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|a Sewage
|2 NLM
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|a Soil
|2 NLM
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| 650 |
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|a Soil Pollutants
|2 NLM
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| 700 |
1 |
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|a Grant, Gavin P
|e verfasserin
|4 aut
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| 700 |
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|a Scholes, Grant C
|e verfasserin
|4 aut
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| 700 |
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|a Murray, Cody
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gerhard, Jason I
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Waste management & research : the journal of the International Solid Wastes and Public Cleansing Association, ISWA
|d 1991
|g 38(2020), 5 vom: 10. Mai, Seite 554-566
|w (DE-627)NLM098164791
|x 1096-3669
|7 nnns
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| 773 |
1 |
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|g volume:38
|g year:2020
|g number:5
|g day:10
|g month:05
|g pages:554-566
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|u http://dx.doi.org/10.1177/0734242X20904430
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