Gas‐Liquid‐Solid Reactions of Polyvinyl Alcohol on Oxidation Treatments for Environmental Pollution Remediation
Bibliographic record
Abstract
Abstract Polyvinyl alcohol (PVA) oxidation in liquid‐phase was studied in a batch high‐pressure reactor at 140 to 240°C and 0.7 MPa oxygen partial pressure. The two‐phase (gas‐liquid) non‐catalytic wet oxidation was compared with a three‐phase system (gas‐liquid‐solid) using CuO‐ZnO/Al 2 O 3 and Mn‐Ce‐O oxides catalysts. This study pointed out oxidation processes as quite promising technologies for industrial effluents containing PVA, leading to high reductions in PVA and total organic carbon (TOC) levels. Catalysts showed high activity at 180°C and carbon adsorption was not observed; Mn‐Ce‐O showed significant leaching to the liquid‐phase, compared with CuO‐ZnO/Al 2 O 3 . Acetic and formic acids were detected as refractory compounds for oxidation.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
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".