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Record W2009907275 · doi:10.1139/s03-038

Spray freezing treatment of water from oil sands tailing ponds

2003· article· en· W2009907275 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

fundA Canadian funder is recorded on the work.
venuePublished in a venue whose home country is Canada.
aboutThe title or abstract carries a Canadian signal from the geographic lexicon.
no affNo Canadian affiliation: this work is invisible to an affiliation-only frame.
No Canadian affiliation. An affiliation-only frame, the usual design, would never have seen this work. It is one of the works that make the case for inverting the frame.

Bibliographic record

VenueJournal of Environmental Engineering and Science · 2003
Typearticle
Languageen
FieldEngineering
TopicFreezing and Crystallization Processes
Canadian institutionsnot available
FundersSyncrude
KeywordsTailingsMeltwaterOil sandsEnvironmental scienceExtraction (chemistry)WastewaterEnvironmental chemistryEffluentChemistrySnowEnvironmental engineeringAsphaltGeologyChromatographyMaterials science

Abstract

fetched live from OpenAlex

Tailings pond water produced from the extraction of bitumen from the oil sands in Northern Alberta, Canada, was treated using the spray freezing process. The wastewater was frozen by spraying at –10°C and –24°C ambient temperatures. The effect of the degree of freezing (i.e., freezing with and without runoff generation) of the sprayed water on the treatment efficiency, the concentration, and distribution of the impurities within the ice columns was examined. When the sprayed water only partially froze (i.e., freezing with runoff formation), the treatment efficiency (measured by reduction in COD, TOC, conductivity, Cl – , SO 4 2– concentrations) was higher and larger volumes of high quality meltwater was obtained. Reduction of toxicity (Microtox) in meltwater, and the relationship between the overall impurity removal and toxicity reduction was also examined in this study. The decay coefficients were determined for prediction of meltwater impurity concentrations using mathematical models.Key words: spray freezing, wastewater treatment, oil sands tailings pond, toxicity reduction.

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.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation 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 score0.129
Threshold uncertainty score0.308

Codex and Gemma teacher scores by category

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)0.0000.000

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 head0.005
GPT teacher head0.166
Teacher spread0.162 · 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