<rdf:RDF xmlns:rdf="http://www.openarchives.org/OAI/2.0/rdf/" xmlns:ow="http://www.ontoweb.org/ontology/1#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:ds="http://dspace.org/ds/elements/1.1/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:doc="http://www.lyncode.com/xoai" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/rdf/ http://www.openarchives.org/OAI/2.0/rdf.xsd">
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      <dc:title>Start-up of novel pilot-scale plant based on two-stage expanded granular sludge bed reactors for pig slurry treatment: Performance and microbial dynamics</dc:title>
      <dc:creator>Aragón Barroso, Antonio J.</dc:creator>
      <dc:creator>Gallardo Altamirano, Manuel Jesús</dc:creator>
      <dc:creator>Castellano-Hinojosa, Antonio</dc:creator>
      <dc:creator>González Martínez, Alejandro</dc:creator>
      <dc:creator>González López, Jesús Juan</dc:creator>
      <dc:creator>Osorio Robles, Francisco</dc:creator>
      <dc:subject>Anaerobic digestion</dc:subject>
      <dc:subject>High-rate</dc:subject>
      <dc:subject>Biogas</dc:subject>
      <dc:description>Pig manure management is an environmental challenge that can be improved through high-rate anaerobic digestion, enabling efficient biogas production and resource recovery. This study evaluated a pilot-scale two-stage expanded granular sludge bed (EGSB) system treating real pig slurry over a 150-day start-up. The reactors, operated in series with different working volumes (100 and 500 L), underwent progressive hydraulic retention times (HRT) reductions (R1: 3–1 d; R2: 12–7 d), increasing organic loading rates (OLR) (R1: 7.6–21.4 kg COD m−3 d−1; R2: 1.0–2.5 kg COD m−3 d−1). General chemical oxygen demand (COD) removal reached 68%, with system sensitivity to high solids, while biogas production and methane yield (MY) remained stable, reaching 264 L/d and 352 L CH4/kg COD removed. Microbial analysis identified Clostridium sensu stricto_1, Methanosarcina, and Methanoculleus as key taxa supporting process stability. These results demonstrate the potential of two-stage EGSB systems for sustainable pig manure valorisation.</dc:description>
      <dc:date>2026-02-11T09:34:53Z</dc:date>
      <dc:date>2026-02-11T09:34:53Z</dc:date>
      <dc:date>2026-04</dc:date>
      <dc:type>journal article</dc:type>
      <dc:identifier>Aragón-Barroso, A. J., Gallardo-Altamirano, M. J., Castellano-Hinojosa, A., González-Martínez, A., González-López, J., &amp; Osorio, F. (2026). Start-up of novel pilot-scale plant based on two-stage expanded granular sludge bed reactors for pig slurry treatment: Performance and microbial dynamics. Bioresource Technology, 445, 134075. https://doi.org/10.1016/j.biortech.2026.134075</dc:identifier>
      <dc:identifier>https://hdl.handle.net/10481/110863</dc:identifier>
      <dc:identifier>10.1016/j.biortech.2026.134075</dc:identifier>
      <dc:language>eng</dc:language>
      <dc:relation>info:eu-repo/grantAgreement/EU/PRTR/TED2021-132494B</dc:relation>
      <dc:rights>http://creativecommons.org/licenses/by/4.0/</dc:rights>
      <dc:rights>open access</dc:rights>
      <dc:rights>Atribución 4.0 Internacional</dc:rights>
      <dc:publisher>Elsevier</dc:publisher>
   </ow:Publication>
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