Evidence map›Paper›PMID 33442789›Full record

ArticleEnvironmental monitoring and assessment2021

Acid mine drainage at the Bahia Gold Belt (Brazil): microbial isolation and characterization.

Leticia A Bernardez, Luis Eduardo L de Oliveira, Luiz Rogério P de Andrade Lima

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In one paragraph

Article in Environmental monitoring and assessment, 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

3 authors.

Leticia A BernardezDepartment of Materials Science and Technology, Federal University of Bahia, Rua Aristides Novis, n.2, Salvador, BA, 40210-630, Brazil.
Luis Eduardo L de OliveiraDepartment of Materials Science and Technology, Federal University of Bahia, Rua Aristides Novis, n.2, Salvador, BA, 40210-630, Brazil.
Luiz Rogério P de Andrade LimaDepartment of Materials Science and Technology, Federal University of Bahia, Rua Aristides Novis, n.2, Salvador, BA, 40210-630, Brazil. lelo@ufba.br.ORCID http://orcid.org/0000-0002-9934-8474

Funding

Conselho Nacional de Desenvolvimento Científico e Tecnológico Bolsa MScCoordenação de Aperfeiçoamento de Pessoal de Nível Superior PNPD 2017
6 · The paper itself

Abstract

Acid mine drainage occurs due to the chemical and microbiological oxidation of sulfide minerals and can be a source of potentially toxic elements contamination of groundwater and surface water. The objective of this study was to identify microorganisms involved in sulfide oxidation in the tailings of a Bahia Gold Belt mine (Brazil). Samples of solids and water were collected at the mine tailings dam and characterized. The microorganisms were isolated after enrichment and subsequent purification. The major constituents of the tailings are Si, Fe, Al, S, and K. The sulfur content of the tailings is 0.98%. The major phases are quartz, muscovite, and clinochlore. Gravity concentrates of the tailings show several particles of pyrite, that is, the major sulfide phase. Molecular analysis identified the microorganisms isolated in the acid mine drainage process in this region. Five bacterium species were found: Acidithiobacillus spp., Acidithiobacillus ferrooxidans, Acidiphilium spp., Leptospirillum type II, and Sulfobacillus spp. No organisms of the archaea or eukaryote domains were found. The isolate was used in the bioleaching of copper sulfide ore, and the copper extraction was about 60% in 60 days for ground ore.

Indexed as

Environmental MonitoringGoldAcidithiobacillusBrazilMiningSulfidesGoldSulfidesAcid mine drainageGold mineTailings dam, pyrite

Identifiers

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Registered trials

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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.