1 Ocak 2022 Dergi makalesi Açık Erişim

Unyay, Hilal; Yilmaz, Fatih; Basar, brahim Alper; Perendeci, Nuriye Altinay; Coban, Isik; Sahinkaya, Erkan

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  <dc:creator>Unyay, Hilal</dc:creator>
  <dc:creator>Yilmaz, Fatih</dc:creator>
  <dc:creator>Basar, brahim Alper</dc:creator>
  <dc:creator>Perendeci, Nuriye Altinay</dc:creator>
  <dc:creator>Coban, Isik</dc:creator>
  <dc:creator>Sahinkaya, Erkan</dc:creator>
  <dc:date>2022-01-01</dc:date>
  <dc:description>Long-term anaerobic digestion of switchgrass (SG) was investigated in batch and semi-continuous reactors operating at different Substrate to Inoculum (S:I) ratios and organic loading rates (OLRs) by monitoring process stability, microbial community structure, and investigating kinetic modeling. The highest methane yield of 204 mLCH4/gVS was observed when the batch system was operated at the S:I ratio of 1.1. Methane yields in the semi continuous configuration were around 148, 157, and 60 mLCH4/gVS at OLRs of 0.75, 1.0, and 1.5 gVS/(L.d), respectively. A drastic decrease in methane yields was observed at the highest OLR value of 1.5 gVS/(L.d). The optimum OLR in the semi-continuous configuration was decided as 1.0 gVS/(L.d) where 35% of the SG theoretical methane yield and 38% energy recovery were attained. Several methanogenic archaea, Methanosarcina, Methanosaeta, Methanothrix, and Methanomethylovorans, together with bacteria species, Chloroflexi, Firmicutes, Spirochaetes, and Actinobacteria were observed in the semi-continuous configuration after 270 days of operation. The dominant bacterial phyla of s-CSTR were mostly members of Spirochaetes phylum, which plays a considerable role in acetate oxidation under either mesophilic or thermophilic conditions.</dc:description>
  <dc:identifier>https://aperta.ulakbim.gov.trrecord/234384</dc:identifier>
  <dc:identifier>oai:aperta.ulakbim.gov.tr:234384</dc:identifier>
  <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
  <dc:rights>http://www.opendefinition.org/licenses/cc-by</dc:rights>
  <dc:source>BIOMASS &amp; BIOENERGY 156</dc:source>
  <dc:title>Effects of organic loading rate on methane production from switchgrass in batch and semi-continuous stirred tank reactor system</dc:title>
  <dc:type>info:eu-repo/semantics/article</dc:type>
  <dc:type>publication-article</dc:type>
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