A combined process of chemical precipitation and aerobic membrane bioreactor for treatment of citric acid wastewater

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dc.authoridISIK, Zelal/0000-0002-1249-8550
dc.authoridArslan, Hudaverdi/0000-0002-3053-6944
dc.authoridBelibagli, Pinar/0000-0001-6643-9620
dc.contributor.authorBelibagli, Pinar
dc.contributor.authorIsik, Zelal
dc.contributor.authorBouras, Hadj Daoud
dc.contributor.authorArslan, Hudaverdi
dc.contributor.authorDizge, Nadir
dc.date.accessioned2025-03-17T12:27:04Z
dc.date.available2025-03-17T12:27:04Z
dc.date.issued2023
dc.departmentTarsus Üniversitesi
dc.description.abstractThe wastewater generated from citric acid production has a high organic loading content. The treatment and reuse of citric acid wastewater with high organic loading become extremely important. In this study, the performance of calcium hydroxide (Ca(OH)2) precipitation as a low-cost and environmentally friendly pre-treatment method and aerobic membrane bioreactor (MBR) combined treatment system was investigated for the treatment of citric acid (CA) wastewater. At the first step, optimization parameters such as agitation speed (100, 150, 200 rpm), temperature (30, 50, 70 degrees C), and reaction time (2, 4, 6 h) for Ca(OH)2 precipitation as a pre-treatment method were investigated using response surface methodology (RSM) to achieve maximum chemical oxygen demand (COD) removal. Experimental sets were designed using Box-Behnken Design. As a result of pre-treatment with Ca(OH)2 precipitation, a COD removal efficiency of 97.3% was obtained. Then, pre-treated CA wastewater was fed continuously to the MBR process for 10 days, which was the second stage of the combined process. As a result of the MBR process, 92.0% COD removal efficiency was obtained for 24 h HRT and 10 days SRT. In total, 99.8% COD removal efficiency was obtained when combined process was used and COD concentration decreased from 52,000-114 mg/L. For the treatment and reuse of wastewater from citric acid production, Ca(OH)2 precipitation and MBR combined treatment systems demonstrated an effective strategy.
dc.identifier.doi10.1016/j.jenvman.2023.118259
dc.identifier.issn0301-4797
dc.identifier.issn1095-8630
dc.identifier.pmid37311349
dc.identifier.scopus2-s2.0-85161704557
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://doi.org/10.1016/j.jenvman.2023.118259
dc.identifier.urihttps://hdl.handle.net/20.500.13099/2054
dc.identifier.volume342
dc.identifier.wosWOS:001027630100001
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherAcademic Press Ltd- Elsevier Science Ltd
dc.relation.ispartofJournal of Environmental Management
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WOS_20250316
dc.subjectCitric acid production wastewater
dc.subjectCa(OH) 2 precipitation
dc.subjectMembrane bioreactor
dc.subjectCombine treatment
dc.subjectCOD removal
dc.titleA combined process of chemical precipitation and aerobic membrane bioreactor for treatment of citric acid wastewater
dc.typeArticle

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