A feasibility study of setting up a pre-sorting system for recyclable textiles and textile waste in Denmark
Authors
Sandager, Stephanie ; Møller-Madsen, Mads Bjerregaard ; Dobler, Nina
Term
10. term
Publication year
2021
Submitted on
2021-06-02
Abstract
This thesis assesses the feasibility of establishing a pre-sorting system for recyclable textiles and textile waste in Denmark. It builds on the current collection and sorting landscape, where NGOs and waste management companies are key actors, and aligns with the waste hierarchy. A preliminary analysis maps existing actors, required pre-sorting levels, current and projected volumes, regional distribution, capacity options, and transport choices. A cost model is developed covering variable (transport, wages) and fixed costs (rent, opening and expansion), and three scenarios are defined: adjustments to the current system, new pre-sorting facilities, and a hybrid solution. A mixed-integer linear programming (MILP) model determines the number, location, and capacity of facilities alongside associated transport and staffing, and scenarios are evaluated using the Analytic Hierarchy Process (AHP) against criteria including CO2 emissions, total cost, excess capacity, and risk, complemented by economic feasibility and an assessment of barriers and benefits. Data sources include collaboration with relevant organizations and secondary literature. This excerpt outlines the approach and framework; specific results and recommendations appear in later chapters of the report.
Dette speciale undersøger gennemførligheden af at etablere et forsorteringssystem for genanvendelige tekstiler og tekstilaffald i Danmark. Udgangspunktet er den nuværende struktur for indsamling og sortering, hvor NGO’er og affaldsselskaber spiller centrale roller, samt principper i affaldshierarkiet. En foranalyse kortlægger de nuværende aktører, krav til forsortering, aktuelle og forventede mængder, regional fordeling, kapacitetsmuligheder og valg af transport. Der udvikles en omkostningsmodel med variable (transport, lønninger) og faste omkostninger (leje, åbning og udvidelse), og der opstilles tre scenarier: justeringer af det eksisterende system, nye forsorteringsfaciliteter og en hybridløsning. En optimeringsmodel (MILP) bruges til at bestemme antal, placering og kapacitet af faciliteter samt tilknyttede transporter og bemanding, og scenarierne vurderes med AHP ud fra kriterierne CO2-udledning, totalomkostning, overkapacitet og risiko, suppleret af økonomisk gennemførlighed og en vurdering af barrierer og gevinster. Datagrundlaget omfatter samarbejde med relevante organisationer og sekundære kilder. Dette uddrag beskriver metoden og rammerne; specifikke resultater og anbefalinger præsenteres i de senere kapitler af rapporten.
[This apstract has been generated with the help of AI directly from the project full text]