Expanded Bed Column Bioreactor Performance and Hydrodynamics
Bibliographic record
Abstract
Abstract Studies on the removal of nitrogen constituents by a dual media expanded bed bioreactor showed substantial removals of about 85% COD and 80% total‐N. Kinetic parameters obtained were: for growth, YH = 0.23mg/mg, µH = 0.278day—1, KH = 461mg/L and bH = 0.0151day—1 and for denitrification, YHD = 0.670mg/mg, µHD = 0.205day—1, KHD = 0.54mg/L and bHD = 0.0300day—1. Hydrodynamics studies gave Ut (terminal settling velocity) and Umf (minimum fluidization velocity) for bare GAC as 0.637m/s and 0.005m/s respectively. For GAC with biofilm, Ut was at 0.426‐0.083m/s, with almost double the increase in buoyancy for particles carrying biofilm. This in turn reduced the Umf for GAC with biofilm, which was at 0.0062‐0.0009m/s.
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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 | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.001 |
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".