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Record W4200041343 · doi:10.1680/jenes.21.00045

Life-cycle assessment of solid waste management in Dhulikhel Municipality, Nepal

2021· article· en· W4200041343 on OpenAlex
Sambuddha Bajracharya, Awanish Adhikari, Prasesh Pote Shrestha, Anish Ghimire

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.

venuePublished in a venue whose home country is Canada.
no affNo Canadian affiliation: this work is invisible to an affiliation-only frame.
No Canadian affiliation. An affiliation-only frame, the usual design, would never have seen this work. It is one of the works that make the case for inverting the frame.

Bibliographic record

VenueJournal of Environmental Engineering and Science · 2021
Typearticle
Languageen
FieldEnvironmental Science
TopicMunicipal Solid Waste Management
Canadian institutionsnot available
Fundersnot available
KeywordsLife-cycle assessmentEnvironmental scienceAnaerobic digestionMunicipal solid wasteWaste managementEnvironmental impact assessmentGlobal-warming potentialMechanical biological treatmentWaste treatmentGlobal warmingEnergy recoveryEnvironmental engineeringGreenhouse gasEnvironmental protectionMethaneClimate changeEngineeringWaste collectionProduction (economics)Ecology

Abstract

fetched live from OpenAlex

Solid waste management is becoming a major environmental and public health concern in emerging municipalities in Nepal. In this study, the life-cycle assessment (LCA) approach is used to address the environmental impacts of potential waste-treatment scenarios in Dhulikhel Municipality in Nepal. The assessment was based on four different scenarios – namely, scenario 1, landfilling; scenario 2, composting combined with landfilling; scenario 3, recycling, composting and landfilling; and scenario 4, recycling, anaerobic digestion and landfilling. The LCA methodology was developed, including the benefits and impact potentials of different unit processes in each scenario, also taking into consideration emissions from energy use. The environmental impacts from the scenarios were compared in terms of global warming potential, acidification potential and eutrophication potential. Among the four scenarios, scenario 4 (i.e. with anaerobic digestion) showed the most environmental advantage. Scenarios without biological treatment facilities are the least preferred option, as their impact is significantly greater than those of other options. Therefore, organic waste is recommended not to be disposed of in landfill sites even if the transportation activity increases, because the magnitude of methane avoidance increases with an increased amount of waste diversion to the biological treatment units.

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.

Full frame distilled prediction

Teacher imitation

Not 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.

metaresearch head score (Codex)0.001
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Simulation or modeling · Consensus signal: Simulation or modeling
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.340
Threshold uncertainty score0.584

Codex and Gemma teacher scores by category

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

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.

Opus teacher head0.009
GPT teacher head0.246
Teacher spread0.237 · 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