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Record W7034336258

A Study on Water Recovery from Industrial Effluents via Forward Osmosis

2022· dissertation· W7034336258 on OpenAlexfundno aff

Bibliographic record

VenueTSpace · 2022
Typedissertation
Language
FieldArts and Humanities
TopicArchaeology and Historical Studies
Canadian institutionsnot available
FundersNatural Sciences and Engineering Research Council of Canada
KeywordsForward osmosisEffluentPressure-retarded osmosisConcentration polarizationOsmosisAqueous solutionOsmotic pressureVolumetric flow rateOsmotic powerRaffinate
DOInot available

Abstract

fetched live from OpenAlex

Water removal from aqueous effluents in the mining and metals processing industry poses a unique challenge due to the high concentration of dissolved ions. Forward Osmosis (FO) is a membrane technology, which employs a concentrated draw solution to osmotically draw water through a semi-permeable membrane, that can operate on high dissolved ion feeds. FO operation relies on using a draw solution of higher osmotic pressure to extract water while managing concentration polarization which limits the water flux of the membrane. This investigation evaluated how flow rates, draw salt type and membrane orientation impact FO performance on solvent extraction raffinate and mine water effluent samples under osmotic gradient equivalent scenarios for a flat-sheet commercial FO membrane. The type of feed, osmotic gradient and flow rate were found to have the largest impact on water flux while only the feed type impacted the separation efficacy of the FO membrane.

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 score0.002
Threshold uncertainty score0.004

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 studies0.0010.000
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 head0.067
GPT teacher head0.308
Teacher spread0.241 · 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

Citations0
Published2022
Admission routes1
Has abstractyes

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