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Record W2465709204 · doi:10.1680/jenge.15.00016

Efficiency of sophorolipids for arsenic removal from mine tailings

2016· article· en· W2465709204 on OpenAlexafffund
Fereshteh Arab

Bibliographic record

VenueEnvironmental Geotechnics · 2016
Typearticle
Languageen
FieldEnvironmental Science
TopicArsenic contamination and mitigation
Canadian institutionsConcordia University
FundersNatural Sciences and Engineering Research Council of Canada
KeywordsTailingsArsenicEnvironmental remediationEnvironmental chemistryExtraction (chemistry)GroundwaterEnvironmental scienceHydroxideFraction (chemistry)ChemistryContaminationWaste managementMining engineeringGeologyInorganic chemistryChromatographyGeotechnical engineering

Abstract

fetched live from OpenAlex

Mine tailings are one of the main sources of dissolved arsenic (As) in groundwater. In the present study, an investigation was conducted on the efficiency of sophorolipids, at different concentrations and pH levels and at two different temperatures (15°C and 23°C), to remove arsenic and heavy metals from mine tailings. Furthermore, the effect of sophorolipids on the speciation of arsenic and the effectiveness of sophorolipids on different fractions of the specimens were investigated by way of sequential extraction. After the treatment of the specimens with a solution of 1% sophorolipids at pH 5 and 23°C, 0·7% of the total removed arsenic was from the water-soluble portion of the mine tailing sample, 0·7% was from the exchangeable portion, 0·6% was from the carbonates, 29·9% was from the oxide/hydroxide fraction, 3·0% was from the organic portion and 65·1% was from the residual fraction of the specimen. The results from this study can help develop a sustainable and environment-friendly solution for the remediation of mine tailings.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.001
Threshold uncertainty score0.002

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.006
GPT teacher head0.196
Teacher spread0.190 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designBench or experimental
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations7
Published2016
Admission routes2
Has abstractyes

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