ArticleApplied and environmental microbiology2011
Effect of elevated salt concentrations on the aerobic granular sludge process: linking microbial activity with microbial community structure.
Article in Applied and environmental microbiology, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.
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Who cites it
19 citing papers in PubMed, 187 citations in OpenAlex.
- Metaproteomic Profiling of the Secretome of a Granule-forming Ca. Accumulibacter Enrichment.Proteomics · 2025Article
- Anionic extracellular polymeric substances extracted from seawater-adapted aerobic granular sludge.Applied microbiology and biotechnology · 2024Article
- Alterations of Glycan Composition in Aerobic Granular Sludge during the Adaptation to Seawater Conditions.ACS ES&T water · 2024Article
- Salinity stress results in ammonium and nitrite accumulation during the elemental sulfur-driven autotrophic denitrification process.Frontiers in microbiology · 2024Article
- Hydrolysis capacity of different sized granules in a full-scale aerobic granular sludge (AGS) reactor.Water research X · 2022Article
- Understanding structure/function relationships in nitrifying microbial communities after cross-transfer between freshwater and seawater.Scientific reports · 2021Article
- Trehalose as an osmolyte in Candidatus Accumulibacter phosphatis.Applied microbiology and biotechnology · 2021Article
- Evolution of microbial dynamics with the introduction of real seawater portions in a low-strength feeding anammox process.Applied microbiology and biotechnology · 2020Article
- The Response of Estuarine Ammonia-Oxidizing Communities to Constant and Fluctuating Salinity Regimes.Frontiers in microbiology · 2020Article
- Nitrite producing bacteria inhibit reinforcement bar corrosion in cementitious materials.Scientific reports · 2018Article
- Effect of Salt on the Metabolism of 'Frontiers in microbiology · 2018Article
- Effects of electron acceptors on sulphate reduction activity in activated sludge processes.Applied microbiology and biotechnology · 2017Article
- Exploration of the relationship between biogas production and microbial community under high salinity conditions.Scientific reports · 2017Article
- Metabolic Response of "Frontiers in microbiology · 2016Article
- Kinetic and thermodynamic control of butyrate conversion in non-defined methanogenic communities.Applied microbiology and biotechnology · 2016Article
- Effect of sludge age on methanogenic and glycogen accumulating organisms in an aerobic granular sludge process fed with methanol and acetate.Microbial biotechnology · 2015Article
- Effect and behaviour of different substrates in relation to the formation of aerobic granular sludge.Applied microbiology and biotechnology · 2015Article
- Antimicrobial potential of the ionophore monensin on freshwater biofilm bacteria.Environmental science and pollution research international · 2014Article
- Towards a metagenomic understanding on enhanced biomethane production from waste activated sludge after pH 10 pretreatment.Biotechnology for biofuels · 2013Article
Corrections and comments
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Authors and funding
6 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The long- and short-term effects of salt on biological nitrogen and phosphorus removal processes were studied in an aerobic granular sludge reactor. The microbial community structure was investigated by PCR-denaturing gradient gel electrophoresis (DGGE) on 16S rRNA and amoA genes. PCR products obtained from genomic DNA and from rRNA after reverse transcription were compared to determine the presence of bacteria as well as the metabolically active fraction of bacteria. Fluorescence in situ hybridization (FISH) was used to validate the PCR-based results and to quantify the dominant bacterial populations. The results demonstrated that ammonium removal efficiency was not affected by salt concentrations up to 33 g/liter NaCl. Conversely, a high accumulation of nitrite was observed above 22 g/liter NaCl, which coincided with the disappearance of Nitrospira sp. Phosphorus removal was severely affected by gradual salt increase. No P release or uptake was observed at steady-state operation at 33 g/liter NaCl, exactly when the polyphosphate-accumulating organisms (PAOs), "Candidatus Accumulibacter phosphatis" bacteria, were no longer detected by PCR-DGGE or FISH. Batch experiments confirmed that P removal still could occur at 30 g/liter NaCl, but the long exposure of the biomass to this salinity level was detrimental for PAOs, which were outcompeted by glycogen-accumulating organisms (GAOs) in the bioreactor. GAOs became the dominant microorganisms at increasing salt concentrations, especially at 33 g/liter NaCl. In the comparative analysis of the diversity (DNA-derived pattern) and the activity (cDNA-derived pattern) of the microbial population, the highly metabolically active microorganisms were observed to be those related to ammonia (Nitrosomonas sp.) and phosphate removal ("Candidatus Accumulibacter").
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