Enhanced dissolution of a tetrachloroethylene DNAPL in a two dimensional model aquifer
Bibliographic record
Abstract
The objectives of this project are to determine the potential for anaerobic microbial cultures to biodegrade chlorinated ethenes present as dense, non-aqueous phase liquid (DNAPL) and to determine the potential for biodegradation to enhance mass transfer rates from the DNAPL into the aqueous phase. The effect of enhanced bioremediation on DNAPL was evaluated using two-dimensional model aquifers containing a tetrachloroethene (PCE) DNAPL. This study involved the construction and operation of a two dimensional model aquifer using a PCE DNAPL. Duplicate model aquifers were constructed, one serving as a control for the other. The model aquifers were packed with soil collected from Dover Air Force Base, DE. The study consisted of four phases: setup, groundwater flush, biostimulation and bioaugmentation with KB-1, an enriched dechlorinating culture. During biostimulation, no observable increase in mass flux was observed, but bioaugmentation doubled the rate of dissolution compared to the control model aquifer.
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) | 0.000 | 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 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".