Microbial community dynamics in a submerged fixed bed bioreactor during biological treatment of saline urban wastewater

C. Cortés-Lorenzo, D. Sipkema, M. Rodríguez-Díaz, S. Fuentes, B. Juárez-Jiménez, B. Rodelas, H. Smidt, J. González-López

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48 Citations (Scopus)

Abstract

The influence of salt (NaCl) on bacterial and archaeal communities in a submerged fixed bed bioreactor system for the treatment of urban wastewater was determined by DGGE and 454 pyrosequencing of PCR-amplified 16S ribosomal RNA gene fragments. Cluster analysis of DGGE fingerprints showed significant differences in the community structure dependent on the salt concentration in the influent. Proteobacteria was found to be the dominant bacterial phylum in all experiments, with a-Proteobacteria being the main order at low salinity and ¿-Proteobacteria the dominant order at high salinity. Euryarchaeota was the main archaeal phylum in all experiments, with all microorganisms corresponding to methanogenic archaea. Whereas bacterial a-diversity decreased as salinity increased, archaeal a-diversity increased with higher NaCl concentrations.
Original languageEnglish
Pages (from-to)126-132
JournalEcological Engineering
Volume71
DOIs
Publication statusPublished - 2014

Keywords

  • activated-sludge
  • treatment plants
  • bacterial diversity
  • sewage-treatment
  • biofilm reactor
  • gradient
  • denitrification
  • sea

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    Evolution of the microbial communities in a submerged fixed bed bioreactor during biological treatment of saline urban wastewater

    Cortes Lorenzo, C. (Creator), Sipkema, D. (Creator), Rodríguez-Díaz, M. (Creator), Fuentes Enriquez de Salamanca, S. (Creator), Juárez-Jiménez, B. (Creator), Rodelas, B. (Creator), Smidt, H. (Creator) & González-López, J. (Creator), Wageningen University, 21 May 2013

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