Electrolytic Oxidation of Cyanide on Bare and Manganese Dioxide Coated 304 Stainless Steel Electrodes
Bibliographic record
Abstract
Abstract Bare and manganese dioxide coated ANSI-304 stainless steel anodes were evaluated for use in electrolytic cyanide waste effluent treatment using bicarbonate buffered electrolytes. Cyclic voltammetry of 10 mM carbonate pH 10 buffered electrolytes showed evidence of mass transfer limited cyanide oxidation just prior to the onset of oxygen gas evolution for both electrode types, and a reaction mechanism in which cyanide is oxidized via reaction with hydroxyl radical containing higher oxidation state species on electrode surfaces is proposed. The results of galvanostatic experiments, conducted in the same base electrolyte with addition of 250 mg L-1 cyanide at a current density of 2 mA cm-2, were fit to a pseudo-first order model of mass transfer limited cyanide oxidation with little difference in cyanide oxidation performance between bare steel and the MnO2 coated electrodes. However, addition of 10 mg L-1 of dissolved copper to the electrolyte was found to enhance the kinetics of cyanide oxidation when employing bare stainless steel electrodes, but had no appreciable effect on cyanide oxidation performance for cells employing manganese dioxide coated electrodes.
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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 | 0.001 |
| 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 | 0.001 | 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".