Adsorpcija prioritetnih onečišćivala na Fe(OH)3

undergraduate thesis

• Title (english): Adsorption of priority pollutants on Fe(OH)3
• Author: Dora Furač
• Mentor: Šime Ukić (mentor)
• Committee member: Šime Ukić (predsjednik povjerenstva)
• Committee member: Ana Lončarić Božić (član povjerenstva)
• Committee member: Mirjana Novak Stankov (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; Interdisciplinary Technical Sciences; Environmental Engineering

Abstract

Farmaceutici su nova onečišćivala koja su se bioakumulirala u okolišu zadnjih pedesetak godina. Pripadaju skupini izuzetno stabilnih organskih spojeva, otrovnih za živi svijet i otpornih na biološku i fotolitičku razgradnju. Konvencionalne metode obrade otpadnih voda nisu pretjerano efikasne za njihovo uklanjanje. Stoga je potrebno istražiti i razviti dodatne metode kako bi se poboljšala učinkovitost njihova uklanjanja. Svrha ovoga rada bila je istražiti uklanjanje farmaceutika deksametazona adsorpcijom na željezovom(III) hidroksidu pri različitim pH vrijednostima i različitim koncentracijama adsorbensa s ciljem smanjenja opterećenja vode na izlazu procesa obrade otpadnih voda. Utvrđeno je da na učinkovitost uklanjanja utječu oba ispitivana parametra. Na temelju dobivenih rezultata uklanjanje je opisano modelom odzivnih površina te su određeni optimalni uvjeti procesa. U svrhu procjene valjanosti razvijenog modela provedena je analiza varijance (ANOVA). Razvoj plana, statistička analiza te ANOVA provedene su korištenjem programskog paketa Design Expert 10.0, StatEase, SAD.

Abstract (english)

Pharmaceuticals are new class of pollutants that have been accumulated in the environment for the last fifty years. They belong to a group of extremely stable organic compounds, toxic to the living world and resistant to biological and photolytic degradation. Conventional wastewater treatment methods have been insignificantly efficient for their removal. Therefore, it is necessary to explore and develop additional methods to improve the efficiency of their removal. The aim of this work was to investigatethe removal ofpharmaceutical dexamethasone by adsorption on iron(III) hydroxide at different pH values and different concentration of the adsorbent. The intention was to reduce level of thepollution at outletof wastewater treatment process. The experiments indicated that efficiency of pesticide removal was affected by both tested parameters. Based on the obtained results, the removal was described by the response surface methodology and the optimal process conditions were determined. An ANOVA analysis was performed to evaluate the validity of the developed model. The experimental design, statistical analysis, and ANOVA were performed using thesoftware package Design Expert 10.0, StatEase, USA.

• Keywords: uklanjanje farmaceutika; onečišćenje; onečišćivalo; deksametazon; Fe(OH)3
• Keywords (english): removal of pharmaceuticals; pollution; pollutant; dexamethasone; Fe(OH)3
• Language: croatian
• URN:NBN: urn:nbn:hr:149:649576
• Project: Number: IP-2014-09-7992; Title: Modeliranje okolišnih aspekata napredne obrade voda za razgradnju prioritetnih onečišćivala; Title: Modeling of environmental aspects of advanced water treatment for fegradation of priority pollutants; Acronym: MEAoWT; Leader: Tomislav Bolanča; Jurisdiction: Croatia; Funder: HRZZ; Funding stream: IP
• Study programme: Title: Chemical 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 15:09:50