Energy recovery from municipal wastewater: impacts of temperature and collection systems
Bibliographic record
Abstract
Municipal wastewater contains valuable organic contents that can be recovered as energy through anaerobic digestion. The operating temperature impacts the design and performance of anaerobic digestion systems and can be selected to accommodate different geographical zones, from tropical to frigid. Here the biological methane potential (BMP) and the effect of temperature on methane production are compared for municipal wastewater collected from different collection systems, including source-diverted toilet wastewater (i.e. blackwater) and conventionally collected sewage. The sewage and blackwater collections were performed in Canada. BMP tests were conducted at 20 and 35°C. The BMPs of municipal sewage and water-wasting toilet (6–9 l per toilet flush) blackwater were comparable at 20 and 35°C. Water-conserving toilet (1 l per toilet flush) blackwater had lower BMP than municipal sewage and water-wasting toilet blackwater at 35°C, due to FA inhibition. Under the lower-temperature condition (20°C), although no apparent inhibition in the methanogenic process was observed for water-conserving toilet blackwater, a much lower hydrolysis rate was observed.
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 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 | 0.000 |
| 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".