Degradation of ferrate species produced electrochemically for use in drinking water treatment applications
Bibliographic record
Abstract
Stability of ferrate species, produced electrochemically for on‐site treatment of drinking water, has been thoroughly studied for a number of important conditions including: pH, temperature, initial concentration effects, and the presence of impurities, in order to assess the degradation process quantitatively. The limited number of ferrate degradation studies reported to this date have all focused on the chemically‐produced ferrate species and have examined conditions which are unsuitable for drinking water treatment. Degradation of electrochemical ferrates over a wide temperature range of 5 °C to 80 °C shows an Arrhenius‐type reaction behaviour with an activation energy of 27.3 ± 0.6 kJ mol −1 . Initial rate analysis of ferrate degradation reveals a reaction order of about 1. The impacts of potential water impurities, such as salts and natural organic matter, and the source water (e.g. tap, deionized, and natural lake) have been studied and are presented. Degradation of ferrates in the pH range of 5 to 13 appears to have a first‐order kinetic behaviour with rate constants ranging from 1.02 × 10 −3 s −1 to 6.67 × 10 −5 s −1 . Understanding the stability properties is important for further development and deployment of on‐site generated ferrates for the purposes of drinking water treatment.
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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 | 0.000 |
| 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) | 0.000 | 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".