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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1080/09593330.2018.1441327
|2 doi
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|a pubmed25n0936.xml
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|a (DE-627)NLM281074909
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|a (NLM)29448891
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Jiang, Guobin
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Impact of landfill density on transport and hydraulic characteristics of recirculated leachate
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|c 2019
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|a Text
|b txt
|2 rdacontent
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| 337 |
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 09.09.2019
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|a Date Revised 09.09.2019
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a To achieve a uniform water distribution and to promote the stabilization of bioreactor landfills, the effects of different density on the transport and hydraulic characteristics of recirculated leachate were studied in a Li+ tracer experiment. The landfill density was related negatively to the maximum production rate of leachate, the percentage of Li+ tracer solution and the cumulative amount of Li+ that washed out in the first recirculation round. The cumulative amount of Li+ that was washed out accounted for 92.61%, 82.07% and 75.25% of the injection volume in three waste columns (1#, 2# and 3#) with landfill densities of 497.5, 726.4 and 970.1 kg m-3 at the thirtieth recirculation, respectively. The results revealed that a greater landfill density yielded a smaller amount of Li+ that was washed out per recirculation cycle and the cumulative amount of Li+ washed out, and a longer contact time between the waste and leachate. Moreover, waste columns 1#, 2# and 3# are reactors with a high dispersion and obvious retention zones, and their Morrill Dispersion Index (MDI) values were 25.00, 34.51 and 24.55, respectively. A short-flow phenomenon is obvious in the reactor with a low landfill density. Furthermore, the plug-flow effect is relatively better in the reactor with a high landfill density. To achieve a uniform distribution of recirculated leachate in the landfill, the MDI of the reactor should be reduced combined with other measures, such as pre-crushing and different recirculation schemes
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|a Journal Article
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|a Bioreactor landfill
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|a hydraulic characteristic
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|a landfill density
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4 |
|a leachate recirculation
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4 |
|a transport characteristic
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| 650 |
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|a Water Pollutants, Chemical
|2 NLM
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| 650 |
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7 |
|a Water
|2 NLM
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| 650 |
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7 |
|a 059QF0KO0R
|2 NLM
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| 700 |
1 |
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|a Liu, Dan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Chen, Weiming
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Qibin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Guangti
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Qi, Yue
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Environmental technology
|d 1993
|g 40(2019), 17 vom: 01. Juli, Seite 2310-2316
|w (DE-627)NLM098202545
|x 1479-487X
|7 nnns
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| 773 |
1 |
8 |
|g volume:40
|g year:2019
|g number:17
|g day:01
|g month:07
|g pages:2310-2316
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| 856 |
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|u http://dx.doi.org/10.1080/09593330.2018.1441327
|3 Volltext
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