Sewer sediment bacterial communities suggest potential to transform persistent organic pollutants

Valdis Krumins, Weimin Sun, Jia Guo, Staci Capozzi, Donna Fennell, Lisa Rodenburg

Research output: Contribution to journalArticle

Abstract

Sediments of combined sewers are seeded with microbes from a variety of sources, and experience varying biogeochemical conditions. A variety of redox processes have been demonstrated to occur within sewer systems, as well as transformation of several recalcitrant xenobiotic contaminants. Illumina sequencing of the 16S ribosomal RNA gene from sediments of three combined sewer systems in the northeastern United States resulted in 10 000 to 47 000 operational taxonomic units per sample. Whereas orders Clostridiales and Bacteroidales, considered human fecal indicators, were dominant in one city's sediments; other cities had communities suggestive of diverse redox processes, including reductive dechlorination of chlorinated organic compounds. Collection systems previously associated with polychlorinated biphenyl (PCB) biotransformation, and those with elevated in situ PCB concentrations, had high abundances of Dehalococcoidetes. The results suggest that wastewater collection systems have intrinsic passive treatment capacity, reducing contaminant loads on water resource recovery facilities and, ultimately, on receiving waters. Water Environ. Res.

Original languageEnglish (US)
Pages (from-to)2022-2029
Number of pages8
JournalWater Environment Research
Volume90
Issue number12
DOIs
StatePublished - Dec 1 2018

Fingerprint

Organic pollutants
Sewers
Combined sewers
Sediments
transform
Polychlorinated Biphenyls
Polychlorinated biphenyls
PCB
Impurities
16S Ribosomal RNA
sediment
Dechlorination
pollutant
Water
biotransformation
dechlorination
Xenobiotics
xenobiotics
Water resources
Organic compounds

All Science Journal Classification (ASJC) codes

  • Environmental Chemistry
  • Ecological Modeling
  • Water Science and Technology
  • Waste Management and Disposal
  • Pollution

Keywords

  • Combined sewers
  • Metagenome
  • PCBs
  • Sediment
  • Xenobiotic compounds

Cite this

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Sewer sediment bacterial communities suggest potential to transform persistent organic pollutants. / Krumins, Valdis; Sun, Weimin; Guo, Jia; Capozzi, Staci; Fennell, Donna; Rodenburg, Lisa.

In: Water Environment Research, Vol. 90, No. 12, 01.12.2018, p. 2022-2029.

Research output: Contribution to journalArticle

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AU - Krumins, Valdis

AU - Sun, Weimin

AU - Guo, Jia

AU - Capozzi, Staci

AU - Fennell, Donna

AU - Rodenburg, Lisa

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