Environmental innocuousness of the activation of a microbial consortium from creosote-contaminated soil in a slurry bioreactor
Bibliographic record
Abstract
A laboratory study was conducted to assess the environmental innocuousness of an inoculum production (soil activation) to be used in the bioaugmentation of creosote-contaminated soils. The activation was carried out through multiple creosote addition. The increased biodegradation and mineralisation rates of the polycyclic aromatic hydrocarbons (PAHs) indicate that the metabolic capabilities of the microbial consortium were enhanced during activation. The PAH mass balance shows a removal of 96.4%. Biodegradation contributed to the removal of the 3-ring (37%–67%), 4-ring (50%–73%), and 5&6-ring (1%–53%) PAHs. Abiotic losses were significant in 2 and 3-ring PAHs. An increase in phenanthrene degraders from 2.1 × 10 5 to 1.0 × 10 8 CFU mL –1 was observed. Denaturing gradient gel electrophoresis analyses indicate the occurrence of a selection of microbial strains, but biodiversity is probably unaffected by creosote addition. Results suggest that soil activation may have the potential to ensure the environmental safety of the bioaugmentation of creosote-contaminated soil.
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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 | 0.001 |
| 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".