Evaluation of Heavy Metals Leakage from Concretes Containing Municipal Wastewater Sludge
Why this work is in the frame
A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.
Bibliographic record
Abstract
Nowadays an important environmental concern is to dispose of municipal wastewater sludge containing toxic heavy metals. These trace elements could be highly hazardous due to their insolubility, high toxicity, bioaccumulation and carcinogenic characterization. One of the latest common ways of sludge disposal is to use in construction materials such as concrete. The aim of this study is to examine leaching of heavy metals from concretes containing sewage sludge. For this purpose, concrete cubes were constructed with different percentages of wastewater sludge (0, 25, 50, 75, 100) replaced with water. Slump and compressive strength of the samples were measured after curing times of 7, 28 and 90 days. Standard test method of NEN 7345 was used to evaluate the possibility of heavy metals leakage out of concrete including Cr+6, Cu+2, Zn+2, Fe+2, Se+2 and Ba+2. Results presented insignificant amount of heavy metals leaking out of concretes according to EPA standards.
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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 | 0.001 | 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 it