Determination of Different Forms of Phosphorus in Waters of the Wastewater Treatment Plant in Durres, Before and After Treatment
Bibliographic record
Abstract
The purpose of this article is to present the results of a study on the water of the wastewater treatment plant in Durrës.For this, a study was conducted during the months of May, June and July 2021 which was based on the determination of the different forms of phosphorus in water, as one of the main nutrients, and responsible for the eutrophication of waters.Representative sampling was done before treatment, after treatment and in wetlands.Storage and transport of samples, based on recommended standard methods.Four different forms of phosphorus were identified (orthophosphate, total phosphorus, condensed phosphorus and organic phosphorus).The selection of standard analysis methods was made by APHA and DIN and for each of them the performance parameters of the method were defined (sensitivity, dictation limit and linear area of measurements).The results obtained were processed and compared with "On permissible discharge rates and zoning criteria for aquatic receiving environments", and EU Directive 91/271 / EEC.The results obtained from the study, showed the higher concentrations of different forms of phosphorus at the station before treatment, but only the values of total phosphorus concentration resulted outside the allowed norms.At the post-treatment station or in wetlands it is noticed that the concentrations of the studied of different forms of phosphorus are within the allowed norms, with the exception of the total phosphorus concentration.Therefore, for the reduction and recovery of phosphorus from water of wastewater treatment plants, the forms of phosphorus that are present must be considered.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 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 | 0.000 |
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".