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Record W4285044072 · doi:10.22215/etd/2022-15037

Impact of Wastewater Temperature & Influent Flow as the Indicators of Climate Change on Wastewater Treatment Systems

2022· dissertation· en· W4285044072 on OpenAlexaff
Vaibhav Bhate

Bibliographic record

Venuenot available
Typedissertation
Languageen
FieldEnvironmental Science
TopicWastewater Treatment and Nitrogen Removal
Canadian institutionsCarleton University
Fundersnot available
KeywordsWastewaterEnvironmental scienceSewage treatmentAnoxic watersClimate changeEnvironmental engineeringWaste managementEngineeringEnvironmental chemistryChemistryEcology

Abstract

fetched live from OpenAlex

Wastewater treatment systems are essential for the safety of people and the wellness of the environment.Climate change has caused significant changes in precipitation patterns, surface temperatures, snowmelt and surface runoff events that also change wastewater characteristics.Change in wastewater temperature and influent flow (indicators of climate change) can affect the physical, chemical, and biological processes in wastewater treatment plants (WWTP) and wastewater treatment performance.This study focused on the impact of wastewater temperatures on secondary / biological activated sludge (AS) systems including conventional AS and Ludzack-Ettinger, using BioWin as a WWTP modeling software.For each treatment system, a wide range of wastewater temperatures and solids retention time (SRT) values were assessed, and removal efficiencies of total chemical oxygen demand (COD), carbonaceous biochemical oxygen demand (cBOD), total suspended solids (TSS), and total ammonia were evaluated.Bush, E., & Lemmen, D. (2019).Canada's Changing Climate Report.www.ChangingClimate.ca/CCCR2019

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 machine prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.020
Threshold uncertainty score0.040

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0010.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.001
Bibliometrics0.0000.001
Science and technology studies0.0000.000
Scholarly communication0.0010.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0030.001

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.

Opus teacher head0.013
GPT teacher head0.265
Teacher spread0.252 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

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".

Quick stats

Citations0
Published2022
Admission routes1
Has abstractyes

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