ArticleApplied and environmental microbiology2015
Changes in Microbial Biofilm Communities during Colonization of Sewer Systems.
Article in Applied and environmental microbiology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.
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Who cites it
7 citing papers in PubMed.
- Microbiological aspects of sewage odor problems in the urban environment - a review.Biologia futura · 2024Review
- Simple Methods for Evaluating Acid Permeation and Biofilm Formation Behaviors on Polysiloxane Films.Materials (Basel, Switzerland) · 2022Article
- Sewer biofilm microbiome and antibiotic resistance genes as function of pipe material, source of microbes, and disinfection: field and laboratory studies.Environmental science : water research & technology · 2020Article
- The unexpected habitat in sewer pipes for the propagation of microbial communities and their imprint on urban waters.Current opinion in biotechnology · 2019Review
- Microbial Composition and Variability of Natural Marine Planktonic and Biofouling Communities From the Bay of Bengal.Frontiers in microbiology · 2019Article
- From grass to gas: microbiome dynamics of grass biomass acidification under mesophilic and thermophilic temperatures.Biotechnology for biofuels · 2017Article
- Metabolic Responses of Bacterial Cells to Immobilization.Molecules (Basel, Switzerland) · 2016Review
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Authors and funding
5 authors.
Funding
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Abstract
The coexistence of sulfate-reducing bacteria (SRB) and methanogenic archaea (MA) in anaerobic biofilms developed in sewer inner pipe surfaces favors the accumulation of sulfide (H2S) and methane (CH4) as metabolic end products, causing severe impacts on sewerage systems. In this study, we investigated the time course of H2S and CH4 production and emission rates during different stages of biofilm development in relation to changes in the composition of microbial biofilm communities. The study was carried out in a laboratory sewer pilot plant that mimics a full-scale anaerobic rising sewer using a combination of process data and molecular techniques (e.g., quantitative PCR [qPCR], denaturing gradient gel electrophoresis [DGGE], and 16S rRNA gene pyrotag sequencing). After 2 weeks of biofilm growth, H2S emission was notably high (290.7±72.3 mg S-H2S liter(-1) day(-1)), whereas emissions of CH4 remained low (17.9±15.9 mg COD-CH4 liter(-1) day(-1)). This contrasting trend coincided with a stable SRB community and an archaeal community composed solely of methanogens derived from the human gut (i.e., Methanobrevibacter and Methanosphaera). In turn, CH4 emissions increased after 1 year of biofilm growth (327.6±16.6 mg COD-CH4 liter(-1) day(-1)), coinciding with the replacement of methanogenic colonizers by species more adapted to sewer conditions (i.e., Methanosaeta spp.). Our study provides data that confirm the capacity of our laboratory experimental system to mimic the functioning of full-scale sewers both microbiologically and operationally in terms of sulfide and methane production, gaining insight into the complex dynamics of key microbial groups during biofilm development.
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