The application of the perfluorinated bonded alumina phase for natural organic matter catalytic ozonation
Bibliographic record
Abstract
An investigation into the efficiency of natural organic matter ozonation in the presence of alumina modified with perfluorooctanoic acid (PFOA) was the goal of this paper. UV254-absorbance analysis indicated that the PFOA/O3 system increases the efficiency of colour removal from treated water when compared with ozonation alone and ozonation in the presence of alumina. The total organic carbon (TOC) analysis proved that the PFOA/O3 system is also responsible for natural organic matter (NOM) degradation in water due to two significant processes that take place during the ozonation step: adsorption and reaction with ozone. Both an increase of carbonyl compounds formation and changes in molecular size distribution of NOM treated with ozone in the presence of PFOA were found to be another evidence for catalytic activity of the PFOA/O3 system. Key words: ozone, drinking water treatment, catalytic ozonation, perfluorooctyl alumina, PFOA, natural organic matter.
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 imitationNot 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.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| 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) | 0.001 | 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 source (direct Gemma or distilled Codex), 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".