Evidence map›Paper›PMID 33948842›Full record

ArticleEnvironmental science and pollution research international2021

Decentralized management of sewage using septic tanks and anaerobic filters and its potential to comply with required standards in a developing country: a case study in Brazil.

Tayane Cristiele Rodrigues Mesquita, André Pereira Rosa, Thales Felício de Oliveira Santos, Alisson Carraro Borges, Maria Lúcia Calijuri, Francianny Maria de Paula Souza

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Article in Environmental science and pollution research international, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
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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

0 citing papers in PubMed.

No citing paper in PubMed yet.

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

6 authors.

Tayane Cristiele Rodrigues MesquitaFederal University of Viçosa (UFV), Avenida Peter Henry Rolfs, s/n, Campus Universitário, Viçosa, 36.570-000, Brazil.
André Pereira RosaFederal University of Viçosa (UFV), Avenida Peter Henry Rolfs, s/n, Campus Universitário, Viçosa, 36.570-000, Brazil. andrerosa@ufv.br.ORCID http://orcid.org/0000-0001-5490-5698
Thales Felício de Oliveira SantosFederal University of Viçosa (UFV), Avenida Peter Henry Rolfs, s/n, Campus Universitário, Viçosa, 36.570-000, Brazil.
Alisson Carraro BorgesFederal University of Viçosa (UFV), Avenida Peter Henry Rolfs, s/n, Campus Universitário, Viçosa, 36.570-000, Brazil.
Maria Lúcia CalijuriFederal University of Viçosa (UFV), Avenida Peter Henry Rolfs, s/n, Campus Universitário, Viçosa, 36.570-000, Brazil.
Francianny Maria de Paula SouzaEnvironmental Engineering at Serviço Autônomo de Água e Esgoto (SAAE), Dr. Horta Street, 75, Center, Viçosa, 36.570-000, Brazil.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To investigate the feasibility of implementing decentralized sewage treatment systems aiming to meet environmental standards, the performance of three decentralized wastewater treatment plants (WWTPs) comprising septic tanks and anaerobic filters (ST+AF) was evaluated. The ability of the WWTPs to comply with the provisions of the legislation and the technical literature was investigated by monitoring physical and chemical parameters at the entrance and exit of the WWTPs, from May 2017 to August 2018. Considering that factors such as operational routine, design of treatment systems, and the existence of pluvial contributions to the sewage network can influence the performance of WWTPs, an investigation of these factors was conducted. The results show that the ST+AF systems can meet the requirements of the legislation. The hypothesis raised in this study is that factors such as cleaning routine and dimensioning of the treatment units can influence the performance of the systems. The best performance was found in the WWTP submitted to frequent cleaning and whose ST dimensions were closest to those recommended by technical standards. The average annual efficiencies of removal of biochemical oxygen demand (BOD) and chemical oxygen demand (COD) in this WWTP assumed values of 93 and 89%, while its solid effluents presented concentrations 82% below the limit established in legislation. Finally, no rainwater contributions were found in the WWTPs, which may be associated with the use of short collection networks in decentralized systems.

Indexed as

SewageWaste Disposal, FluidAnaerobiosisBrazilDeveloping CountriesWastewaterSewageWastewaterAnaerobic treatmentDomestic sewagePerformance indicatorsSanitationSmall systemsWastewater treatment

Identifiers

PMID33948842

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.