A hybrid process for leachate wastewater treatment: Evaporation and reverse osmosis/sequencing batch reactor

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dc.authoridOZAY, Yasin/0000-0001-5419-6115
dc.authoridISIK, Zelal/0000-0002-1249-8550
dc.authoridDizge, Nadir/0000-0002-7805-9315
dc.contributor.authorBouchareb, Raouf
dc.contributor.authorIsik, Zelal
dc.contributor.authorOzay, Yasin
dc.contributor.authorKaragunduz, Ahmet
dc.contributor.authorKeskinler, Bulent
dc.contributor.authorDizge, Nadir
dc.date.accessioned2025-03-17T12:27:40Z
dc.date.available2025-03-17T12:27:40Z
dc.date.issued2022
dc.departmentTarsus Üniversitesi
dc.description.abstractIn 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 degrees C +/- 1 degrees 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.
dc.identifier.doi10.1002/wer.10717
dc.identifier.issn1061-4303
dc.identifier.issn1554-7531
dc.identifier.issue4
dc.identifier.pmid35466487
dc.identifier.scopus2-s2.0-85128788094
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1002/wer.10717
dc.identifier.urihttps://hdl.handle.net/20.500.13099/2384
dc.identifier.volume94
dc.identifier.wosWOS:000787828800002
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherWiley
dc.relation.ispartofWater Environment Research
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250316
dc.subjectbiological treatment
dc.subjectevaporation
dc.subjectleachate
dc.subjectreverse osmosis membrane
dc.titleA hybrid process for leachate wastewater treatment: Evaporation and reverse osmosis/sequencing batch reactor
dc.typeArticle

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