Mogućnost korištenja lužine pepela u obradi iskorištenih papira

master's thesis

• Author: Magdalena Fištrek
• Mentor: Željka Barbarić-Mikočević (mentor)
• Committee member: Željka Barbarić-Mikočević (član povjerenstva)
• Granter: University of Zagreb; Faculty of Graphic Arts; Zagreb
• Defense date and country: 2013-10-29, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Graphic Technology

Abstract

U ovom radu ispitivana je mogućnosti recikliranja iskorištenog papira s eko lužinom

dobivenom od pepela. Korištena lužina, nazvana eko lužina, dobivena je otpadnog

pepela u kućanstvu nastalim sagorijevanjem ogrjevnog drveta bukve i hrasta. Uzorci

papira korišteni za reciklaciju deinking flotacijom uzeti su iz dnevnih novina, točnije

Večernjeg lista. Postupak kojim se vršilo uklanjanje bojila iz uzorka navedenih

tiskovina proveden je po uzoru na Ingede Metodu11, gdje se uz površinsko aktivnu tvar

(potrebnu za proces flotacije) od kemikalija za deinking koristila jedino eko lužina. Kao

kontrolni postupak na istim uzorcima tiskovina proveden je i klasičan flotacijski

deinking sa svim definiranim kemikalijama, poznat kao Ingede Metoda 11. Tijekom

flotacijskog deinkinga uz klasične kemikalije (korištene u Ingede Metodi 11) i uz eko

lužinu formirani su laboratorijski listovi prije i nakon flotacije. Kako bi se ustanovilo je

li laboratorijski pripremljena eko lužina pogodna za flotacijski deinking, točnije

uklanjanje bojila, provedena su optička ispitivanja na laboratorijskim listovima

formiranim prije i nakon flotacije. Od optičkih svojstava ispitivana je prozirnost,

svjetlina i količina zaostale tinte u uzorku (ERIC). Također je vršena i slikovna analiza

pomoću Spec*Scan 2000 (Apogee Systems Inc.) te je dobivena ukupna površina

čestica, ukupan broj čestica, te klasifikacija detektiranih čestica u 25 klasa veličina.

Uspoređivanjem dobivenih vrijednosti na laboratorijskim listovima formiranim nakon

obrade eko lužinom u flotacijskom deinkingu i klasičnim deinking kemikalijama

(Ingede Metoda 11) može se zaključiti da postoji mogućnost korištenja eko lužine u

procesu uklanjanja bojila iz iskorištenog papira.

Abstract (english)

This study overhauls the possibility of recycling of used paper with eco alcali obtained

from ashes. Used lye, called eco alkali, was produced from combustion waste obtained

in households from burning beech and oak. Paper samples used for deinking flotation

were taken from croatian daily news paper named Večernji list. The procedure which

was done to remove dye from samples was conducted according to model Ingede

Methode 11, where the sufracant (necessary for deinking flotation) was only used eco

alkaly. As a control procedure on the same samples was conducted classical deinkig

flotation with all defined chemicals known as Ingede Methode 11. During flotation

deinking with classical chemicals, and with eco alkali laboratory sheets were formed

before and after flotation. The reason for doing this was determination whether eko

alkaly is suitable for deinking flotation, namely the removal of dyes, optical tests were

conducted on laboratory sheets formed before and after flotation. Optical properties that

were tested are transpareny, brightness, and amount of residual ink (ERIC). Image

analysis was conducted with Spec*Scan 2000 (Apogee Systems Inc.), which gained

total particle area, total particle number, and it classified detected particles in 25 sizes.

After comparasion of gained values on laboratory sheets formed after deinking flotation

with eco alkaly and classical chemicals it can be concluded that eco alkaly can be

suitable for dye removal from used paper.

• Keywords: eko lužina; deinking flotacija; recikliranje
• Keywords (english): eco alkaly; deinking flotation; recycling
• Language: croatian
• URN:NBN: urn:nbn:hr:216:579449
• Study programme: Title: Graphic technology; specializations in: Graphic technology, Design of graphic products; Course: Graphic technology; Study programme type: university; Study level: graduate; Academic / professional title: sveučilišni/a magistar/magistra inženjer/inženjerka grafičke tehnologije (sveučilišni/a magistar/magistra inženjer/inženjerka grafičke tehnologije)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2024-04-17 09:13:57