1 Ocak 2022 Dergi makalesi Açık Erişim

Demirkaya, Esma; Ciftcioglu, Bengisu; Ozyildiz, Goksin; Zengin, Gulsum Emel; Pala-Ozkok, Ilke; Cokgor, Emine; Tas, Didem Okutman

Dublin Core

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  <dc:creator>Demirkaya, Esma</dc:creator>
  <dc:creator>Ciftcioglu, Bengisu</dc:creator>
  <dc:creator>Ozyildiz, Goksin</dc:creator>
  <dc:creator>Zengin, Gulsum Emel</dc:creator>
  <dc:creator>Pala-Ozkok, Ilke</dc:creator>
  <dc:creator>Cokgor, Emine</dc:creator>
  <dc:creator>Tas, Didem Okutman</dc:creator>
  <dc:date>2022-01-01</dc:date>
  <dc:description>The present study investigated the disregarded impact of microbial community composition, diversity and abundance of the starter biomass on lab-scale bioreactor performance, steady-state long time operation, biodegradation outcome and microbial kinetics. Standard lab-scale experiments are usually initiated with inoculum taken from wastewater treatment plants (WWTPs) without considering microbial community composition. Two identical sequencing batch bioreactors (SBR-1, SBR-2) were operated with inocula obtained from two domestic WWTPs to assess the role of inoculum composition on reactor performance and treatment efficacy. Filamentous microorganisms were dominated in SBR-1 (SVI: 265 mL/g), whereas their supremacy was diminished in SBR-2 (SVI: 160 mL/g). Next generation sequencing analyses verified high abundance of Candidatus Microthrix (14%) and Kouleothrix spp. (3%) in SBR-1. Although Chloroflexi C10-SB1A metagenome accounted for 16% of WWTP-2 community, SBR-2 was operated at steady-state for longer period without deterioration. Statistical indicators based on molecular studies showed that WWTP-2 has higher diversity than WWTP-1. Higher biodiversity in WWTP-2 community supported the stable process performance. Modelling studies denoted an increase in half saturation coefficients (K-s) in filamentous microorganisms dominated reactor. The results of this study provide insight on how the filamentous organisms typically found in WWTPs become a fundamental constituent during the bioreactor operation.</dc:description>
  <dc:identifier>https://aperta.ulakbim.gov.trrecord/236366</dc:identifier>
  <dc:identifier>oai:aperta.ulakbim.gov.tr:236366</dc:identifier>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:rights>http://www.opendefinition.org/licenses/cc-by</dc:rights>
  <dc:source>BIOCHEMICAL ENGINEERING JOURNAL 177</dc:source>
  <dc:title>Comprehensive evaluation of starter culture impact on the bioreactor performance and microbial kinetics</dc:title>
  <dc:type>info:eu-repo/semantics/article</dc:type>
  <dc:type>publication-article</dc:type>
</oai_dc:dc>