Comparative Assessment of Sludge Pre-Treatment Techniques to Enhance Sludge Dewaterability and Biogas Production

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dc.authorid0000-0001-9200-5420
dc.authorid0000-0002-0716-1865
dc.authorid0000-0002-4904-6056
dc.authorid0000-0001-8644-2317
dc.authorid0000-0003-3519-4821
dc.authorid0000-0003-1308-2490
dc.authorid0000-0001-7527-6130
dc.authorscopusid57206755422
dc.authorscopusid57212155243
dc.authorscopusid25655411700
dc.authorscopusid7004472890
dc.authorscopusid25924855400
dc.authorscopusid55917632800
dc.authorscopusid8699632200
dc.authorwosidOlmez-Hanci, Tugba/AAB-9008-2020
dc.authorwosidARIKAN, OSMAN A/F-1193-2015
dc.authorwosidCifci, Deniz Izlen/AAH-3383-2020
dc.authorwosidÇokgör, Emine/ABC-7793-2020
dc.authorwosidTas, Didem Okutman/ABB-2084-2020
dc.authorwosidYangin-Gomec, Cigdem/ABB-1151-2020
dc.authorwosidEkdal, Alpaslan/AAF-2962-2020
dc.contributor.authorTaş, Didem Okutman
dc.contributor.authorYangın Gömeç, Çiğdem
dc.contributor.authorÖlmez Hancı, Tuğba
dc.contributor.authorArıkan, Osman A.
dc.contributor.authorÇifçi, Deniz İzlen
dc.contributor.authorGençsoy, Elif B.
dc.contributor.authorUbay Çokgör, Emine
dc.date.accessioned2022-05-11T14:17:24Z
dc.date.available2022-05-11T14:17:24Z
dc.date.issued2018
dc.departmentFakülteler, Çorlu Mühendislik Fakültesi, Çevre Mühendisliği Bölümü
dc.description.abstractEffectiveness of ultrasonication, microwave technologies, and enzyme addition prior to anaerobic digestion is investigated using sludge samples taken from the secondary settling tank of a domestic wastewater treatment plant to improve methane production, enhance dewaterability characteristics of the sludge, and to reduce excess sludge. Microwave pre-treatment (1500 W, 10 min at 175 degrees C) results in better extra digester performance (compared to the control reactor) in terms of methane production (25 m(3) ton(-1) suspended solids (SS)) than ultrasound (no improvement) and enzyme pre-treatment (11 m(3) ton(-1) SS). While methane production is not improved as a result of ultrasonication pre-treatment (15 000 kJ kg(-1) SS), a noticeable increase (19%) is observed in the case of microwave pre-treatment. Higher compactibility values are obtained after ultrasonication and microwave application compared to the control (i.e., from 7.1 to 8.7 and 9.2%, respectively) before anaerobic digestion. Although ultrasonication and microwave application decrease the dewaterability of the raw sludge (capillary suction time (CST) from 827 to 1364 and 2290 s, respectively), similar dewaterability results are obtained at the end of the anaerobic digestion process for all pre-treated sludge samples. An economic assessment of this study shows that pretreatment with microwave results in more than 10-fold less net cost compared to the enzyme application.
dc.description.sponsorshipTUBITAK (Turkish National Scientific Council): Management of Domestic/Urban Wastewater Sludges in Turkey [108G167]; I.T.U Research Fund: Effects of Ultrasound Disintegration on Anaerobic Treatment of Domestic/Urban Treatment Sludges [34827]
dc.description.sponsorshipThis study was supported by TUBITAK (Turkish National Scientific Council) under the project number 108G167: Management of Domestic/Urban Wastewater Sludges in Turkey and I.T.U Research Fund, Project No: 34827: Effects of Ultrasound Disintegration on Anaerobic Treatment of Domestic/Urban Treatment Sludges.
dc.identifier.doi10.1002/clen.201700569
dc.identifier.issn1863-0650
dc.identifier.issn1863-0669
dc.identifier.issue1en_US
dc.identifier.scopus2-s2.0-85037363407
dc.identifier.scopusqualityQ3
dc.identifier.urihttps://doi.org/10.1002/clen.201700569
dc.identifier.urihttps://hdl.handle.net/20.500.11776/6344
dc.identifier.volume46
dc.identifier.wosWOS:000419775700004
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.institutionauthorÇifçi, Deniz İzlen
dc.language.isoen
dc.publisherWiley
dc.relation.ispartofClean-Soil Air Water
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectanaerobic digestion
dc.subjectenzymes
dc.subjectmicrowave
dc.subjectsludge minimization
dc.subjectultrasonication
dc.subjectWaste Activated-Sludge
dc.subjectWater Treatment Plants
dc.subjectAnaerobic-Digestion
dc.subjectSewage-Sludge
dc.subjectUltrasound Pretreatment
dc.subjectExcess Sludge
dc.subjectMicrowave Disintegration
dc.subjectThermal Pretreatment
dc.subjectFloc Disintegration
dc.subjectSecondary Sludge
dc.titleComparative Assessment of Sludge Pre-Treatment Techniques to Enhance Sludge Dewaterability and Biogas Production
dc.typeArticle

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