1 Ocak 2022 Dergi makalesi Açık Erişim

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

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  "@id": 236366, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "affiliation": "Istanbul Tech Univ, Environm Engn Dept, TR-34469 Maslak, Turkey", 
      "name": "Demirkaya, Esma"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Gebze Tech Univ, Environm Engn Dept, TR-41400 Gebze, Turkey", 
      "name": "Ciftcioglu, Bengisu"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Istanbul Tech Univ, Environm Engn Dept, TR-34469 Maslak, Turkey", 
      "name": "Ozyildiz, Goksin"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Istanbul Tech Univ, Environm Engn Dept, TR-34469 Maslak, Turkey", 
      "name": "Zengin, Gulsum Emel"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Univ Stavanger, Fac Sci & Technol, Inst Chem Biosci & Environm Engn, Box 8600 Forus, N-4036 Stavanger, Norway", 
      "name": "Pala-Ozkok, Ilke"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Istanbul Tech Univ, Environm Engn Dept, TR-34469 Maslak, Turkey", 
      "name": "Cokgor, Emine"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Istanbul Tech Univ, Environm Engn Dept, TR-34469 Maslak, Turkey", 
      "name": "Tas, Didem Okutman"
    }
  ], 
  "datePublished": "2022-01-01", 
  "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.", 
  "headline": "Comprehensive evaluation of starter culture impact on the bioreactor performance and microbial kinetics", 
  "identifier": 236366, 
  "image": "https://aperta.ulakbim.gov.tr/static/img/logo/aperta_logo_with_icon.svg", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "name": "Comprehensive evaluation of starter culture impact on the bioreactor performance and microbial kinetics", 
  "url": "https://aperta.ulakbim.gov.tr/record/236366"
}