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231226s2022 xx |||||o 00| ||eng c |
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|a 10.1002/wer.10717
|2 doi
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|a pubmed25n1132.xml
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|a eng
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|a Bouchareb, Raouf
|e verfasserin
|4 aut
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|a A hybrid process for leachate wastewater treatment
|b Evaporation and reverse osmosis/sequencing batch reactor
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|c 2022
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|a Text
|b txt
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 12.08.2024
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a © 2022 Water Environment Federation.
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|a In this study, a hybrid process for leachate wastewater treatment including evaporation and reverse osmosis (RO) membrane or biological treatment systems was suggested. Experiments were performed on a real landfill leachate wastewater. The leachate was subjected to evaporation; as a result, a distillate was obtained containing less organic matter and less substantial amounts of other pollutants, as ammonium salts and total phenols were removed. Tests were carried out at different evaporation temperatures and times. The initial leachate pH was adjusted and optimized. For optimum conditions, each of chemical oxygen demand (COD), total phenol, and ammonium salt concentrations were reduced to 99.99%, 95.00%, and 83.00%, respectively. The distillate of the first stage of the proposed process was then exposed to RO membrane system, as a first study, under different transmembrane pressure of 20, 30, and 40 bar and at different pH values of 7, 8, and 9. As a second suggested treatment system, the distillate was subjected to a biological treatment process for 30 days as a retention time, pH = 6, and room temperature 25°C ± 1°C. At the end of the research study, a comparison was conducted between results obtained with RO membrane separation and biological treatment system as two distinct treatment systems proposed for leachate landfill wastewater treatment. Although both systems were effective for landfill leachate wastewater treatment, however, with the RO membrane separation system, COD removal efficiency reached 99.99%. In the other hand, with biological treatment process, COD elimination was as much as 90.00%. Certainly, evaporation and RO are not novel ways of landfill leachate treatment; however, few studies have attempted to use similar combined system for landfill leachate wastewater treatment and attained effective results of treated water. PRACTITIONER POINTS: A hybrid process of evaporation and RO membrane or biological treatment systems was suggested for leachate wastewater treatment. For optimum conditions, COD, total phenols, and ammonium salt reductions were achieved to 99.99%, 95%, and 83%, respectively, after the first evaporation stage. The distillate of the first stage of the proposed process was then exposed to RO membrane system and biological treatment system. Different transmembrane pressure and different pH values were optimized for RO
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|a Journal Article
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|a biological treatment
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|a evaporation
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|a leachate
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|a reverse osmosis membrane
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|a Isik, Zelal
|e verfasserin
|4 aut
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|a Ozay, Yasin
|e verfasserin
|4 aut
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| 700 |
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|a Karagunduz, Ahmet
|e verfasserin
|4 aut
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|a Keskinler, Bulent
|e verfasserin
|4 aut
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|a Dizge, Nadir
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Water environment research : a research publication of the Water Environment Federation
|d 1998
|g 94(2022), 4 vom: 17. Apr., Seite e10717
|w (DE-627)NLM098214292
|x 1554-7531
|7 nnas
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| 773 |
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|g volume:94
|g year:2022
|g number:4
|g day:17
|g month:04
|g pages:e10717
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|u http://dx.doi.org/10.1002/wer.10717
|3 Volltext
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