Potencijal UV-C/H2O2 i UV-C/S2O82- procesa za remedijaciju voda onečišćenih organskim onečišćivalima

undergraduate thesis

• Title (english): Remediation of waters polluted with organics: the potential of UV-C/H2O2 i UV-C/S2O82- processes
• Author: Leonarda Zovko
• Mentor: Matija Cvetnić (mentor)
• Committee member: Matija Cvetnić (predsjednik povjerenstva)
• Committee member: Šime Ukić (član povjerenstva)
• Committee member: Lidija Furač (član povjerenstva)
• Granter: University of Zagreb; Faculty of Chemical Engineering and Technology; Zagreb
• Defense date and country: 2024-09-17, Croatia
• Scientific / art field, discipline and subdiscipline: NATURAL SCIENCES; Chemistry

Abstract

Napredovanjem tehnologije i sve većim zahtjevima tržišta, povećava se proizvodnja, a time i ispuštanje sve raznovrsnijih onečišćivala u okoliš, što zahtijeva njihovo nužno zbrinjavanje. Iako koncentracije neželjenih supstanci koje završavaju u otpadnim vodama mogu biti vrlo niske, gotovo zanemarive, itekako mogu predstavljati opasnost za okoliš u cjelini uslijed njihove trajne izloženosti. U ovom će se radu staviti naglasak na organske onečišćujuće tvari u vodenom mediju i načine na koje se iste mogu izolirati, ukloniti ili im smanjiti koncentraciju do dozvoljenih granica. Jedna od modernijih i učinkovitijih tehnika uklanjanja organskih onečišćujućih tvari iz medija upravo su napredni oksidacijski procesi, NOP (engl. advanced oxidation processes, AOPs). Radi se o procesima koji se koriste u slučajevima kada konvencionalne metode uklanjanja štetnih tvari ne pokazuju zadovoljavajuće rezultate.
U ovom će se radu ispitati potencijal UV-C/H2O2 i UV-C/S2O82- fotokemijskih procesa u kojima dolazi do razaranja onečišćivala na temelju kombinacije učinaka oksidansa i ultraljubičaste svjetlosti. Naime, dolazi do stvaranja visokoreaktivnih radikala koji su u mogućnosti djelomično ili u potpunosti razgraditi organske onečišćujuće tvari do jednostavnih produkata koji ne predstavljaju opasnost po okoliš.

Abstract (english)

With the advancement of technology and increasing demands of the market, the production increases, so as the release of more diverse pollutants into the environment, which requires their necessary disposal. Although the concentrations of unwanted substances that end up in wastewater can be very low, almost negligible, they can represent a great danger to the environment as a whole, due to their permanent exposure. In this paper, emphasis will be placed on organic pollutants in the water medium and the ways in which they can be isolated, removed or their concentration can be reduced to permissible limits. One of the modern and effective techniques for removing organic pollutants from the media are advanced oxidation processes, AOPs. These processes are used in cases where conventional methods of removing harmful substances do not show satisfactory results. This paper will examine the potential of UV-C/H2O2 and UV-C/S2O82- photochemical processes in which the destruction of pollutants occurs based on a combination of oxidants and ultraviolet light effects.
The creation of highly reactive radicals, that are able to partially or completely break down organic pollutants into simple products that do not represent a danger to the environment, occurs.

• Keywords: fotokemijski procesi; organska onečišćivala; remedijacija voda
• Keywords (english): fotochemical processes; organic pollutants; water remediation
• Language: croatian
• URN:NBN: urn:nbn:hr:149:767801
• 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: 2024-11-15 14:23:40