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231224s2014 xx |||||o 00| ||eng c |
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|a 10.1016/j.wasman.2013.10.025
|2 doi
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|a pubmed25n0777.xml
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|a (DE-627)NLM233175199
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|a (NLM)24287299
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|a (PII)S0956-053X(13)00511-4
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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 Abood, Alkhafaji R
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Non-biodegradable landfill leachate treatment by combined process of agitation, coagulation, SBR and filtration
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|c 2014
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| 336 |
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|a Text
|b txt
|2 rdacontent
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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 15.09.2014
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|a Date Revised 20.01.2014
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Copyright © 2013 Elsevier Ltd. All rights reserved.
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|a This study describes the complete treatment of non-biodegradable landfill leachate by combined treatment processes. The processes consist of agitation as a novel stripping method used to overcome the ammonia toxicity regarding aerobic microorganisms. The NH3-N removal ratio was 93.9% obtained at pH 11.5 and a gradient velocity (G) 150 s(-1) within a five-hour agitation time. By poly ferric sulphate (PFS) coagulation followed the agitation process; chemical oxygen demand (COD) and biological oxygen demand (BOD5) were removed at 70.6% and 49.4%, respectively at an optimum dose of 1200 mg L(-1) at pH 5.0. The biodegradable ratio BOD5/COD was improved from 0.18 to 0.31 during pretreatment step by agitation and PFS coagulation. Thereafter, the effluent was diluted with sewage at a different ratio before it was subjected to sequencing batch reactor (SBR) treatment. Up to 93.3% BOD5, 95.5% COD and 98.1% NH3-N removal were achieved by SBR operated under anoxic-aerobic-anoxic conditions. The filtration process was carried out using sand and carbon as a dual filter media as polishing process. The final effluent concentration of COD, BOD5, suspended solid (SS), NH3-N and total organic carbon (TOC) were 72.4 mg L(-1), 22.8 mg L(-1), 24.2 mg L(-1), 18.4 mg L(-1) and 50.8 mg L(-1) respectively, which met the discharge standard. The results indicated that a combined process of agitation-coagulation-SBR and filtration effectively eliminated pollutant loading from landfill leachate
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Agitation
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|a Anoxic–aerobic SBR
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|a Filtration
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|a Landfill leachate
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|a PFS coagulation
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|a Water Pollutants, Chemical
|2 NLM
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| 650 |
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|a Carbon
|2 NLM
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| 650 |
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|a 7440-44-0
|2 NLM
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| 650 |
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|a Silicon Dioxide
|2 NLM
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| 650 |
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|a 7631-86-9
|2 NLM
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| 650 |
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|a Ammonia
|2 NLM
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| 650 |
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|a 7664-41-7
|2 NLM
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| 700 |
1 |
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|a Bao, Jianguo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Du, Jiangkun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zheng, Dan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Luo, Ye
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Waste management (New York, N.Y.)
|d 1999
|g 34(2014), 2 vom: 17. Feb., Seite 439-47
|w (DE-627)NLM098197061
|x 1879-2456
|7 nnns
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| 773 |
1 |
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|g volume:34
|g year:2014
|g number:2
|g day:17
|g month:02
|g pages:439-47
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| 856 |
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|u http://dx.doi.org/10.1016/j.wasman.2013.10.025
|3 Volltext
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|d 34
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