Enhanced solubilization and anaerobic biodegradability of source-separated kitchen waste by microwave pre-treatment
Bibliographic record
Abstract
Results from an investigation of the effect of high temperature and pressure microwave (MW) pre-treatment of source-separated kitchen waste (SSKW) are presented. MW pre-treatment to a temperature of 175 °C (1 min holding time) at a heating rate of 7.9 °C min(-1), enhanced SSKW solubilization by 40% in comparison with control; yielding higher soluble chemical oxygen demand (sCOD), total sugars and proteins concentrations in the soluble phase (<45 μm). Batch biochemical methane potential tests (BMP) at 33 °C, indicated an enhanced anaerobic biodegradability compared to non-pretreated samples. However, the comparative analysis of semi-continuous anaerobic digesters performance for pre-treated and non-treated SSKW, indicated that MW pre-treatment was successful at solids retention times (SRT) higher than 25 days, showing not only a robust performance in terms of volatile solids (VS) and total chemical oxygen demand (TCOD) removals (6 and 5% gain, respectively, in comparison with control). Effluent dewaterability was also enhanced by MW pre-treatment, showing a 20% increase for the best operation conditions. The study of biomass activity revealed the production of difficult to degrade compounds during pre-treatment conditions and also served as a tool to monitor reactor performance deterioration.
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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 | 0.002 | 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 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".