Proučevanje ustreznih pristopov recikliranja tekstilnih odpadkov - piroliza in hidroliza

magistrsko delo

Nina Žunko (Author), Luka Lešnik (Mentor), Julija Volmajer Valh (Co-mentor)

Abstract

Velika tekstilna proizvodnja ima za posledico vse večjo akumulacijo tekstilnega odpada in zaskrbljujoče okoljske probleme. Prav zaradi omenjene problematike so zelo pomembne študije na področju recikliranja in ponovne uporabe tekstilnega odpada. Namen tega magistrskega dela je bil proučiti ustrezne pristope recikliranja odpadnih sintetičnih in naravnih vlaken. V magistrskem delu smo se osredotočili na terciarno kategorijo recikliranja odpadnega polietilen tereftalata (PET), celuloze, njune mešanice in volne. V prvem delu smo izvedli nevtralno in alkalno hidrolizo sintetičnih vlaken – obarvan ter neobarvan PET. V drugem delu pa smo preverili, ali je termična razgradnja – piroliza kot metoda recikliranja primerna tako za sintetična kot tudi za naravna vlakna. Ugotovili smo, da je za recikliranje odpadnih sintetičnih vlaken najprimernejša 30 minutna alkalna hidroliza, ki poteka pri 250 °C in 40 barih. Za naravna vlakna, kot sta celuloza in volna, pa je primernejša piroliza. Pri termični razgradnji celuloze smo dobili več tekočega produkta kot pri termični razgradnji volne.

Keywords

recikliranje;tekstilni odpadki;piroliza;hidroliza;razgradni produkti;magistrske naloge;

Data

Language:	Slovenian
Year of publishing:	2020
Typology:	2.09 - Master's Thesis
Organization:	UM FS - Faculty of Mechanical Engineering
Publisher:	[N. Tratnik]
UDC:	[66.094.941+66.092-97]:677.08(043.2)
COBISS:	38191619
Views:	461
Downloads:	68
Average score:	0 (0 votes)
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Other data

Secondary language:	English
Secondary title:	Study of suitable approaches for textile waste recycling - pyrolysis and hydrolysis
Secondary abstract:	Large-scale textile production results in an increasing accumulation of textile waste and worrying environmental problems. Due to this issue, studies in the field of recycling and reuse of textile waste are very important. The purpose of this master's thesis was to examine appropriate approaches for synthetic and natural fibers recycling. In the master's thesis, we focused on the tertiary category of recycling textile waste - polyethylene terephthalate (PET), cellulose, their mixtures and wool. In the first part, we performed neutral and alkaline hydrolysis of synthetic fibers - dyed and unstained PET. In the second part, we investigated whether thermal decomposition - pyrolysis is suitable for both synthetic and natural fibers as a recycling method. Based on the results, we found that the most suitable approach for synthetic fibers recycling is a 30-minute alkaline hydrolysis at 250 °C and 40 bar. In addition, pyrolysis is more suitable for natural fibers such as cellulose and wool. In the thermal decomposition of cellulose, we obtained more liquid product, unlike pyrolysis of wool where we get less liquid product.
Secondary keywords:	recycling;textile waste;pyrolysis;hydrolysis;degradation products;
Type (COBISS):	Master's thesis/paper
Thesis comment:	Univ. v Mariboru, Fak. za strojništvo, Tehniško varstvo okolja
Pages:	VIII, 48 f.
ID:	12063969