Impacts of chemical-assisted thermal pretreatments on methane production from fruit and vegetable harvesting wastes: process optimization

dc.authorid0000-0002-2969-1082en_US
dc.authorid0000-0001-5415-9664en_US
dc.contributor.authorGünerhan, Ümmihan
dc.contributor.authorUs, Ender
dc.contributor.authorDumlu, Lütfiye
dc.contributor.authorYılmaz, Vedat
dc.contributor.authorCarrere,Helene
dc.contributor.authorNuriye, Altınay Perendeci
dc.date.accessioned2020-02-04T07:42:33Z
dc.date.available2020-02-04T07:42:33Z
dc.date.issued2020
dc.departmentAÇÜ, Mühendislik Fakültesien_US
dc.descriptionPubMed ID: 31979363en_US
dc.description.abstractThe increasing population creates excess pressure on the plantation and production of fruits and vegetables across the world. Consumption demand during the whole year has made production compulsory in the covered production system (greenhouse). Production, harvesting, processing, transporting, and distribution chains of fruit and vegetables have resulted in a huge amount of wastes as an alternative source to produce biofuels. In this study, optimization of two pretreatment processes (NaOH and HCl assisted thermal) was investigated to enhance methane production from fruit and vegetable harvesting wastes (FVHW) that originate from greenhouses. NaOH concentration (0-6.5%), HCl concentration (0-5%), reaction temperature (60-100 °C), solid content (1-5%), time of reaction (1-5 h), and mixing speed (0-500 rpm) were chosen in a wide range of levels to optimize the process in a broad design boundary and to evaluate the positive and negative impacts of independent variables along with their ranges. Increasing NaOH and HCl concentrations resulted in higher COD solubilization but decreased the concentration of soluble sugars that can be converted directly into methane. Thus, the increasing concentrations of NaOH and HCl in the pretreatments have resulted in low methane production. The most important independent variables impacting COD and sugar solubilization were found to be chemical concentration (as NaOH and HCl), solid content and reaction temperature for the optimization of pretreatment processes. The high amount of methane productions in the range of 222-365 mL CH4 gVS-1 was obtained by the simple thermal application without using chemical agents as NaOH or HCl. Maximum enhancement of methane production was 47-68% compared to raw FVHW when 5% solid content, 1-hour reaction time and 60-100 °C reaction temperature were applied in pretreatments.
dc.identifier.citationGünerhan, Ü., Us, E., Dumlu, L., Yılmaz, V., Carrère, H., & Perendeci, A. (2020). Impacts of Chemical-Assisted Thermal Pretreatments on Methane Production from Fruit and Vegetable Harvesting Wastes: Process Optimization. Molecules, 25(3), 500.en_US
dc.identifier.doi10.3390/molecules25030500
dc.identifier.issue3en_US
dc.identifier.scopusqualityQ1
dc.identifier.urihttps://hdl.handle.net/11494/1932
dc.identifier.volume25en_US
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.institutionauthorYılmaz, Vedat
dc.language.isoenen_US
dc.publisherNLM (Medline)en_US
dc.relation.ispartofMolecules
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectBiogas productionen_US
dc.subjectFruit and vegetable harvesting wastesen_US
dc.subjectProcess optimizationen_US
dc.subjectThermo chemical pretreatmenten_US
dc.titleImpacts of chemical-assisted thermal pretreatments on methane production from fruit and vegetable harvesting wastes: process optimizationen_US
dc.typeArticle

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