Postupci recikliranja polietilena

undergraduate thesis

• Title (english): Recycling methods of polyethylene
• Author: Helena Pišonić
• Mentor: Ljerka Kratofil Krehula (mentor)
• Committee member: Ljerka Kratofil Krehula (predsjednik povjerenstva)
• Committee member: Zlata Hrnjak-Murgić (član povjerenstva)
• Committee member: Igor Sutlović (član povjerenstva)
• Granter: University of Zagreb; Faculty of Chemical Engineering and Technology; Zagreb
• Defense date and country: 2018-09-21, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Chemical Engineering; Chemical Engineering in Material Development

Abstract

Polimerni materijali danas se sve češće koriste u razne svrhe pa, zbog njihove vrlo raširene primjene, nastaje sve veća količina polimernog otpada što dovodi do potrebe pronalaženja adekvatnih metoda zbrinjavanja. Naime, povećana količina nezbrinutog polimernog otpada može naštetiti okolišu. Jedan od najčešće korištenih polimernih materijala je polietilen te je ujedno i vrlo velik izvor plastičnog otpada. U ovom su radu opisani načini zbrinjavanja polietilenskog otpada, od nastajanja preko prikupljanja, pranja i usitnjavanja do samog procesa recikliranja. Svrha zadatka je upoznati se s procesima recikliranja polietilenskog otpada koji doprinose održivom razvoju, zaštiti okoliša i ekonomskoj dobiti. Izuzev navedenog, recikliranjem polietilenskog otpada dobiva se nova sirovina koja se dalje može koristiti za proizvodnju raznih produkata. Reciklirani polietilen može biti osnovna sirovina za izradu raznih proizvoda (kante za smeće, boce za deterdžente, sportska oprema, plastične vrećice) ili može biti aditiv za poboljšavanje svojstava nekog drugog osnovnog materijala (npr. dodatak cementu). Danas se teži k tome da se proizvedu plastični materijali koji se mogu samostalno razgraditi (biorazgradnja) ili da se materijali koji nisu skloni biorazgradnji recikliraju ekološki prihvatljivim i ekonomski isplativim metodama.

Abstract (english)

Today are polymer materials used in various purposes and, because of such wide variety of uses, there is an increasing amount of polymer waste, which leads to finding an appropriate solution to waste management. Moreover, large quantities of untreated polymer waste can damage the environment. One of the most commonly used polymers is polyethylene, which is also one of the biggest sources of plastic waste. In this work the suitable processes for polyethylene waste treating are explained (from its origin to its collection, washing and shredding and its recycling at the end). The purpose of the task is to introduce the recycling procedures of polyethylene waste, which contribute to the environmental sustainability, environmental protection and economic benefits. Furthermore, the recycled polyethylene waste is a new raw material, which can be further used to produce various products. Recycled polyethylene can be a basic raw material for producing garbage cans, detergent bottles, sports equipment and plastic bags or it can be an additive to improve the properties of some other basic materials (a cement additive). Nowadays, there is a tendency to produce plastic materials which can be biodegradable or to recycle non-biodegradable materials with environmentally friendly and economically useful methods.

• Keywords: polietilen; polimerni otpad; recikliranje
• Keywords (english): polyethylene; polymer waste; recycling
• Language: croatian
• URN:NBN: urn:nbn:hr:149:544267
• Study programme: Title: Materials Science and Engineering - Undergraduate study; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka kemijskog inženjerstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2022-07-08 12:48:50