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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1016/j.wasman.2021.02.013
|2 doi
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|a pubmed24n1076.xml
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|a (DE-627)NLM322821584
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|a (NLM)33725517
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|a (PII)S0956-053X(21)00076-3
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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1 |
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|a Tumuluru, Jaya Shankar
|e verfasserin
|4 aut
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|a Pilot-scale grinding and briquetting studies on variable moisture content municipal solid waste bales - Impact on physical properties, chemical composition, and calorific value
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|c 2021
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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 29.03.2021
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|a Date Revised 29.03.2021
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2021 Elsevier Ltd. All rights reserved.
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|a Low bulk density, variable moisture content, and particle size of municipal solid waste (MSW) create feeding, handling, storage, and transportation challenges. In this study, MSW bales were size-reduced in stage-1 and stage-2 hammer mill grinders fitted with 50.8-mm and 6.35-, 12.7-, and 19.05-mm screens. Ground MSW was densified further in a pilot-scale briquette press by varying moisture content in the range of 10-25% wet basis (w.b.). At 40% (w.b.) MSW moisture content, the stage-1 grinder fitted with a 50.4-mm screen took about 136kWh/ton, while the stage-2 grinder fitted with a 19.05-mm screen took about 151kWh/ton. The bulk density of MSW after stage-1 and stage-2 grinding was about 25-50 kg/m3. Unit bulk and tapped density were in the range of 680-850 kg/m3, 478-315 kg/m3, and 346-540 kg/m3 post briquetting, and 591-830 kg/m3, 295-458 kg/m3, and 319-519 kg/m3 post five days of storage at 20 °C. The durability was about 93.40-98.54% post briquetting, and after five days of storage. Increasing the moisture content and screen size decreased density and improved durability. Briquetting energy increased to 120 kWh/ton at a higher moisture content and larger grind size. MSW flow characteristics improved after briquetting. Higher lignin content (≈30%) and calorific value (19-21 MJ/kg) suggest MSW is suitable for thermochemical conversion. Ash content in the MSW was in the 11.9-14.8% range. CT-scan images of the briquettes showed a network of interconnected pores formed due to compression of various MSW fractions
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|a Journal Article
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|a Briquetting
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|a CT-scan imaging
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|a Flow indices
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|a Municipal solid waste (MSW)
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|a Physical and chemical properties
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|a Two stage-grinding
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|a Solid Waste
|2 NLM
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| 700 |
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|a Yancey, Neal A
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Kane, Joshua 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 125(2021) vom: 15. Apr., Seite 316-327
|w (DE-627)NLM098197061
|x 1879-2456
|7 nnns
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| 773 |
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|g volume:125
|g year:2021
|g day:15
|g month:04
|g pages:316-327
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|u http://dx.doi.org/10.1016/j.wasman.2021.02.013
|3 Volltext
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