The impact of permanganate on the ability of granular iron to degrade trichloroethene
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.
Bibliographic record
Abstract
Abstract The primary goal of this study was to investigate the influence of permanganate (MnO 4 − ) on the performance of granular iron permeable reactive barriers. The degradation of trichloroethene (TCE) was measured initially and then over time as a MnO 4 − solution was passed through laboratory columns packed with granular iron. Concentration profiles for MnO 4 − , TCE, and degradation products (dichloroethene isomers and vinyl chloride), as well as pH, were observed. The pH increased sharply after passing MnO 4 − through the column, from ~8 to 11. MnO 4 − rapidly oxidized the granular iron and formed insoluble precipitates and oxide films or coatings on the granular iron surfaces. The precipitates did not accumulate in sufficient quantity to cause a measurable decline in hydraulic conductivity; however, the surface films formed as a consequence of the addition of MnO 4 − caused the iron to become nonreactive with respect to both MnO 4 − and TCE.
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 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 | 0.001 | 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 it