Recikliranje otpadnog gipsa

master's thesis

• Title (english): Recycling of waste gypsum
• Author: Kata Šipić
• Mentor: Nevenka Vrbos (mentor)
• Committee member: Nevenka Vrbos (predsjednik povjerenstva)
• Committee member: Juraj Šipušić (član povjerenstva)
• Committee member: Mirela Leskovac (član povjerenstva)
• Granter: University of Zagreb; Faculty of Chemical Engineering and Technology; Zagreb
• Defense date and country: 2017-09-29, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Chemical Engineering; Analysis, Synthesis and Management of Chemical Processes

Abstract

U ovom radu su potvrđeni rezultati prethodnih ispitivanja oporabe otpadnog gipsa. Uzorci su obrađeni u hidrotermalnom reaktoru zatvorenom prema atmosferi pri temperaturama 120-160 °C. Postignuta je dehidratacija (kalcinacija) gipsa tijekom 24 h. Karakterizacija uzoraka provedena je rendgenskom difrakcijskom analizom (XDR), a morfologija uzorka određena je elektronskom mikroskopijom (SEM). Utvrđena je promjena morfologije kristala pripravljenih uzoraka. Ispitana je hidratacija pripravljenog gipsa, pri čemu su utvrđene određene pravilnosti s promjenom temperature hidrotermalne obrade.

Abstract (english)

This paper shows confirmed results from previous testing of using waste gypsum. Samples are processed in hydrothermal reactor closed to atmosphere in temperatures (from) 120-160 °C. Dehydration (calcination) of the gypsum is reached during 24 hours. Characterization of the sample is conducted with an X-ray diffraction analysis (XDR). Through an electronic microscope (SEM) is conducted sample's morphology confirms changes in the crystals’ morphology of the registered samples. Hydration of the registered gypsum is tested at which point shows certain regular changes with temperature of the hydrothermal process.

• Keywords: otpadni gips; dehidratacija; rendgenska difrakcijska analiza; elektronski mikroskop; kalorimetrija
• Keywords (english): waste gypsum; dehydration; X-ray diffraction analysis; electronic microscope; calorimetry
• Language: croatian
• URN:NBN: urn:nbn:hr:149:556150
• Study programme: Title: Environmental Engineering - Graduate study; Study programme type: university; Study level: graduate; Academic / professional title: magistar/magistra inženjer/inženjerka ekoinženjerstva (magistar/magistra inženjer/inženjerka ekoinženjerstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Open access
• Created on: 2020-04-30 13:45:22