Ultrasound assisted biogas production from landfill leachate

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dc.authoridAYMAN OZ, Nilgun/0000-0002-6309-0547
dc.contributor.authorOz, Nilgun Ayman
dc.contributor.authorYarimtepe, Canan Can
dc.date.accessioned2025-01-27T21:05:29Z
dc.date.available2025-01-27T21:05:29Z
dc.date.issued2014
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractThe aim of this study is to increase biogas production and methane yield from landfill leachate in anaerobic batch reactors by using low frequency ultrasound as a pretreatment step. In the first part of the study, optimum conditions for solubilization of organic matter in leachate samples were investigated using various sonication durations at an ultrasound frequency of 20 kHz. The level of organic matter solubilization during ultrasonic pretreatment experiments was determined by calculating the ratio of soluble chemical oxygen demand (sCOD) to total chemical oxygen demand (tCOD). The sCOD/tCOD ratio was increased from 47% in raw leachate to 63% after 45 min sonication at 600 W/I. Non-parametric Friedman's test indicated that ultrasonic pretreatment has a significant effect on sCOD parameter for leachate (p < 0.05). In the second part of the study, anaerobic batch reactors were operated for both ultrasonically pretreated and untreated landfill leachate samples in order to assess the effect of sonication on biogas and methane production rate. In anaerobic batch reactor feed with ultrasonically pretreated leachate, 40% more biogas was obtained compared to the control reactor. For statistical analysis, Mann-Whitney U test was performed to compare biogas and methane production rates for raw and pretreated leachate samples and it has been found that ultrasonic pretreatment significantly enhanced biogas and methane production rates from leachate (p < 0.05) in anaerobic batch reactors. The overall results showed that low frequency ultrasound pretreatment can be potentially used for wastewater management especially with integration of anaerobic processes. (C) 2014 Elsevier Ltd. All rights reserved.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [112Y379]; TUBiTAK [111Y112]
dc.description.sponsorshipFinancial support by The Scientific and Technological Research Council of Turkey (TUBITAK) was gratefully acknowledged (Project No.: 112Y379). The authors would like to partly acknowledged Project coded TUBiTAK 111Y112. The authors wish to thank Dr. Onder Ayyildiz for his support during the experimental part of this work. The authors wish also to thank Istanbul Environmental Management in Industry and Trade (ISTAC) and Kent Food Industry and Trade Inc. for their support in supplying leachate and seed sludge sample, respectively.
dc.identifier.doi10.1016/j.wasman.2014.03.003
dc.identifier.endpage1170
dc.identifier.issn0956-053X
dc.identifier.issn1879-2456
dc.identifier.issue7
dc.identifier.pmid24709441
dc.identifier.scopus2-s2.0-84902003337
dc.identifier.scopusqualityQ1
dc.identifier.startpage1165
dc.identifier.urihttps://doi.org/10.1016/j.wasman.2014.03.003
dc.identifier.urihttps://hdl.handle.net/20.500.12428/27670
dc.identifier.volume34
dc.identifier.wosWOS:000338404600008
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherPergamon-Elsevier Science Ltd
dc.relation.ispartofWaste Management
dc.relation.publicationcategoryinfo:eu-repo/semantics/openAccess
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzKA_WoS_20250125
dc.subjectAnaerobic
dc.subjectBiogas
dc.subjectLandfill leachate
dc.subjectLow frequency ultrasound
dc.subjectPretreatment
dc.subjectSolubilization
dc.titleUltrasound assisted biogas production from landfill leachate
dc.typeArticle

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