Evidence map›Paper›PMID 33864127›Full record

ArticleBioprocess and biosystems engineering2021

Hacking biofilm developed in a structured-bed reactor (SBRRIA) with integrated processes of nitrogen and organic matter removal.

Carla Eloísa Diniz Dos Santos, Rachel Biancalana Costa, Camila Abreu Borges Silva Rabelo, Antônio Djalma Nunes Ferraz Júnior, Gabriela Felix Persinoti, Eloísa Pozzi, Eugenio Foresti, Márcia Helena Rissato Zamariolli Damianovic

Abstract read
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In one paragraph

Article in Bioprocess and biosystems engineering, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Carla Eloísa Diniz Dos SantosEnvironmental Engineering Department, Federal University of Triângulo Mineiro (UFTM), Av. Dr. Randolfo Borges Júnior 1250, Univerdecidade, Uberaba, Minas Gerais, 38064-200, Brazil. carla.santos@uftm.edu.br.ORCID http://orcid.org/0000-0002-5954-1026
Rachel Biancalana CostaDepartment of Biochemistry and Organic Chemistry, Institute of Chemistry, São Paulo State University (UNESP), R. Francisco Degni, 55, Araraquara, São Paulo, 14800-060, Brazil.ORCID http://orcid.org/0000-0002-9914-7330
Camila Abreu Borges Silva RabeloBiological Processes Laboratory, São Carlos School of Engineering (EESC), University of São Paulo (USP), Av. João Dagnone 1100, Santa Angelina, São Carlos, São Paulo, 13563-120, Brazil.ORCID http://orcid.org/0000-0002-3339-2739
Antônio Djalma Nunes Ferraz JúniorBrazilian Biorenewables National Laboratory (LNBR/CNPEM), Rua Giuseppe Máximo Scolfaro, 10.000, Polo II de Alta Tecnologia, Campinas, São Paulo, 13083-970, Brazil.ORCID http://orcid.org/0000-0001-9700-411X
Gabriela Felix PersinotiBrazilian Biorenewables National Laboratory (LNBR/CNPEM), Rua Giuseppe Máximo Scolfaro, 10.000, Polo II de Alta Tecnologia, Campinas, São Paulo, 13083-970, Brazil.ORCID http://orcid.org/0000-0002-0975-7283
Eloísa PozziBiological Processes Laboratory, São Carlos School of Engineering (EESC), University of São Paulo (USP), Av. João Dagnone 1100, Santa Angelina, São Carlos, São Paulo, 13563-120, Brazil.
Eugenio ForestiBiological Processes Laboratory, São Carlos School of Engineering (EESC), University of São Paulo (USP), Av. João Dagnone 1100, Santa Angelina, São Carlos, São Paulo, 13563-120, Brazil.ORCID http://orcid.org/0000-0002-7097-8990
Márcia Helena Rissato Zamariolli DamianovicBiological Processes Laboratory, São Carlos School of Engineering (EESC), University of São Paulo (USP), Av. João Dagnone 1100, Santa Angelina, São Carlos, São Paulo, 13563-120, Brazil.ORCID http://orcid.org/0000-0001-7738-3722

Funding

Fundação de Amparo à Pesquisa do Estado de São Paulo 2013/15665-8Fundação de Amparo à Pesquisa do Estado de São Paulo 2015/21650-9
6 · The paper itself

Abstract

Biomass samples from a structured-bed reactor subjected to recirculation and intermittent aeration (SBRRIA) were analyzed to investigate the bacterial community shift along with the changes in the C/N ratio. The C/N ratios tested were 7.6 ± 1.0 (LNC) and 2.9 ± 0.4 (HNC). The massive sequencing analyses revealed that the microbial community adjusted itself to different organic and nitrogenous applied loads, with no harm to reactor performance regarding COD and Total-N removal. Under LNC, conventional nitrification and heterotrophic denitrification steered the process, as indicated by the detection of microorganisms affiliated with Nitrosomonadaceae, Nitrospiraceae, and Rhodocyclaceae families. However, under HNC, the C/N ratio strongly affected the microbial community, resulting in the prevalence of members of Saprospiraceae, Chitinophagaceae, Xanthomonadaceae, Comamonadaceae, Bacillaceae, and Planctomycetaceae. These families include bacteria capable of using organic matter derived from cell lysis, ammonia-oxidizers under low DO, heterotrophic nitrifiers-aerobic denitrifiers, and non-isolated strains of Anammox. The DO profile confirmed that the stratification in aerobic, anoxic, and anaerobic zones enabled the establishment of different nitrogen degradation pathways, including the Anammox.

Indexed as

Anaerobic Ammonia OxidationBacterial Physiological PhenomenaBioreactorsDenitrificationMicrobiotaBacteriaBiofilmsNitrogenNitrogenAnammoxDissolved oxygen microsensorImmobilized biomassSimultaneous nitrification and denitrification (SND)

Identifiers

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.