Microbial characterization and removal of anionic surfactant in an expanded granular sludge bed reactor.

@article{Delforno2012MicrobialCA,
  title={Microbial characterization and removal of anionic surfactant in an expanded granular sludge bed reactor.},
  author={Tiago Palladino Delforno and Dagoberto Yukio Okada and Juliana Polizel and Isabel Kimiko Sakamoto and Maria Bernadete Am{\^a}ncio Varesche},
  journal={Bioresource technology},
  year={2012},
  volume={107},
  pages={
          103-9
        }
}
This study evaluated linear alkylbenzene sulfonate removal in an expanded granular sludge bed reactor with hydraulic retention times of 26 h and 32 h. Sludge bed and separator phase biomass were phylogenetically characterized (sequencing 16S rRNA) and quantified (most probable number) to determine the total anaerobic bacteria and methanogenic Archaea. The reactor was fed with a mineral medium supplemented with 14 mg l(-1)LAS, ethanol and methanol. The stage I-32 h consisted of biomass… Expand
Microbial characterization and degradation of linear alkylbenzene sulfonate in an anaerobic reactor treating wastewater containing soap powder.
TLDR
The aim of this study was to evaluate the removal of linear alkylbenzene sulfonate in an anaerobic fluidized bed reactor (AFBR) treating wastewater containing soap powder as LAS source, and 16S rRNA clones belonging to the phyla Proteobacteria and Synergistetes were identified. Expand
Effect of anionic surfactant inhibition on sewage treatment by a submerged anaerobic membrane bioreactor: Efficiency, sludge activity and methane recovery
Abstract The effect of linear alkylbenzene sulfonate (LAS), a typical anionic surfactant, on the sewage treatment by a submerged anaerobic membrane bioreactor (SAnMBR) was investigated by a 243 daysExpand
Evaluation of anionic surfactant removal in anaerobic reactor with Fe(III) supplementation.
TLDR
The objective of this study was to evaluate the removal of linear alkylbenzene sulfonate (LAS) associated with Fe(III) supplementation using an expanded granular sludge bed (EGSB) reactor and an increase in the removal efficiency was observed. Expand
Evaluation of bacterial community from anaerobic fluidized bed reactor for the removal of linear alkylbenzene sulfonate from laundry wastewater by 454-pyrosequence
ABSTRACT In this study, 454-pyrosequencing technique was employed to investigate the bacterial communities from a fluidized bed reactor (FBR) with sand as support material. This reactor was used forExpand
Effect of biomass adaptation to the degradation of anionic surfactants in laundry wastewater using EGSB reactors.
TLDR
Two expanded granular sludge bed reactors were operated, and many reads were related to genera of degraders of aromatic compounds and sulfate reducers (Syntrophorhabdus and Desulfobulbus) by pyrosequencing. Expand
Biodegradation of linear alkylbenzene sulfonate in commercial laundry wastewater by an anaerobic fluidized bed reactor
  • J. K. Braga, F. Motteran, +5 authors M. Varesche
  • Chemistry, Medicine
  • Journal of environmental science and health. Part A, Toxic/hazardous substances & environmental engineering
  • 2015
TLDR
The biodegradation of linear alkylbenzene sulfonate from commercial laundry wastewater was evaluated in an anaerobic fluidized bed reactor fed with synthetic substrate and Gemmatimonas, Desulfobulbus and Zoogloea were determined as the most abundant genera related to surfactant degradation using 454-Pyrosequencing. Expand
Study on the membrane bioreactor for treating surfactant wastewater
The main component of surfactant is linear alkylbenzene sulfonate (LAS), which is toxic to the ecological environment and can cause serious harm. In this study, some activated sludge was taken fromExpand
Evaluation of the microbial community of upflow anaerobic sludge blanket reactors used for the removal and degradation of linear alkylbenzene sulfonate by pyrosequencing
TLDR
The microbial community from reactor RL was more capable of degrading LAS, most likely because of the presence of xenobiotics. Expand
Evaluation of the microbial diversity in sequencing batch reactor treating linear alkylbenzene sulfonate under denitrifying and mesophilic conditions using swine sludge as inoculum
TLDR
The efficiently degraded LAS in the reactor was operated in batch sequences in denitrifying conditions and the sequences obtained were related to the phylum Proteobacteria and the alpha-and beta-proteob bacteria classes, these bacteria were probably involved in the degradation of LAS. Expand
Evaluation of anionic surfactant removal by anaerobic degradation of commercial laundry wastewater and domestic sewage
TLDR
Statistical tests indicated that the decrease of the LAS removal rate was significant and indicated a correlation between the removal of LAS and specific organic loading rate and genera similar to Geobacter, Desulfovibrio, Syntrophomonas, and Desulfomonile, which were related to the degradation of L AS. Expand
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References

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Anaerobic degradation of linear alkylbenzene sulfonate (LAS) in fluidized bed reactor by microbial consortia in different support materials.
TLDR
Four anaerobic fluidized bed reactors filled with activated carbon, expanded clay, glass beads and sand gave rise to broad microbial diversity, with microorganisms belonging to the phyla Bacteroidetes, Firmicutes, Actinobacteria and Proteobacteria, indicating the role of microbial consortia in degrading the surfactant LAS. Expand
Anaerobic biodegradation of linear alkylbenzene sulfonate (LAS) in upflow anaerobic sludge blanket (UASB) reactors
TLDR
Biodegradation was higher in the absence of external co-substrates than in the presence of additional sources of carbon, indicating that the surfactant can be partially used as carbon and energy source by anaerobic bacteria. Expand
Effects of process stability on anaerobic biodegradation of LAS in UASB reactors.
TLDR
This finding indicates that process stability is a key factor in anaerobic biological removal of LAS, providing evidence of biologicalAnaerobic biodegradation of linear alkylbenzene sulfonates under stable conditions. Expand
Degradation of detergent (linear alkylbenzene sulfonate) in an anaerobic stirred sequencing-batch reactor containing granular biomass
TLDR
The presence of methanogenic microorganisms shows that LAS did not inhibit anaerobic digestion, and the degradation of LAS was found to be higher in the absence of co-substrates than in their presence. Expand
Feasibility of expanded granular sludge bed reactors for the anaerobic treatment of low‐strength soluble wastewaters
TLDR
The application of the expanded granular sludge bed (EGSB) reactor for the anaerobic treatment of low‐strength soluble wastewaters using ethanol as a model substrate was investigated in laboratory‐scale reactors at 30oC and an extremely low apparent Ks value for acetoclastic methanogenesis was observed. Expand
Effect of linear alkylbenzene sulphonates (LAS) on the anaerobic digestion of sewage sludge.
TLDR
Addition of LAS homologues to the anaerobic digesters increased the biogas production at surfactant concentrations 5-10 g/kg dry sludge and gave rise to a partial or total inhibition of the methanogenic activity at higher Surfactant loads. Expand
Evaluation of the microbial diversity in a horizontal-flow anaerobic immobilized biomass reactor treating linear alkylbenzene sulfonate
TLDR
Microscopic analyses of the biofilm revealed diverse microbial morphologies, while Denaturing Gradient Gel Eletrophoresis (DGGE) profiling showed variations in the population of total bacteria and sulphate-reducing bacteria (SRB). Expand
The anaerobic treatment of low strength wastewaters in UASB and EGSB reactors
The application of the UASB and EGSB reactors for the treatment of low strength wastewaters was investigated. The effect of dissolved oxygen on the methanogenic activity of granular sludges, the lowExpand
Contact angle measurement and cell hydrophobicity of granular sludge from upflow anaerobic sludge bed reactors
TLDR
The contact angle, which is generally used to evaluate the hydrophobicities of pure bacterial strains and solid surfaces, was used to study mixed cell cultures of bacteria involved in anaerobic digestion and revealed that a surface layer with moderate hydrophobicity, a middle layer with extremely high hydrophOBicity, and a core with high hydophobicity could be distinguished in the grey granules. Expand
Inhibition of the anaerobic digestion process by linear alkylbenzene sulfonates
TLDR
It has been proven that the inhibition intensity depends on the solids concentration and thus the term ``biomass specific LAS concentration'' has been introduced in order to describe the phenomenon better and it is believed that the inhibitory effect of LAS is the main reason that anaerobic microbial enrichments on LAS have not succeeded yet. Expand
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