Uklanjanje smjese organskih onečišćivala kombinacijom adsorpcije na mikroplastici s reverznom osmozom

master's thesis

• Title (english): Removal of a mixture of organic pollutants by combining adsorption on microplastics with reverse osmosis
• Author: Aleksandra Brenko
• Mentor: Krešimir Košutić (mentor)
• Committee member: Krešimir Košutić (predsjednik povjerenstva)
• Committee member: Danijela Ašperger (član povjerenstva)
• Committee member: Lidija Furač (član povjerenstva)
• Granter: University of Zagreb; Faculty of Chemical Engineering and Technology; Zagreb
• Defense date and country: 2024-02-22, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Chemical Engineering

Abstract

Cilj ovog istraživanja je odrediti učinkovitost procesa uklanjanja organskih onečišćujućih tvari iz otpadne vode kombinacijom adsorpcije na mikroplastici s reverznom osmozom. Korištene su niskoenergetske (XLE) reverzno osmotske membrane za bočatu vodu i mikroplastika nastala usitnjavanjem uobičajenog ambalažnog materijala (polipropilen i polietilen tereftalat). Postupak pročišćavanja proveden je i za onečišćujuće tvari u destiliranoj vodi radi usporedbe. Odabrana je po jedna onečišćujuća tvar iz grupe farmaceutika, pesticida i industrijskih nusproizvoda. To su mebendazol - široko rasprostranjeni antiparazitik, klotianidin - insekticid iz skupine neonikotinoida, i N-nitrozodipropilamin - jednostavan i čest nusprodukt industrijskih procesa koji može imati toksičan efekt na ljude i životinje. Istražen je utjecaj veličine čestica mikroplastike na adsorpciju. Testirane su dvije frakcije, 100 - 300 μm i
300 - 500 μm. Za određivanje koncentracije onečišćujućih tvari korištena je HPLC analitička metoda. Postignute su visoke (> 97,8 %) stope uklanjanja svih komponenti kombiniranom metodom adsorpcije i reverzne osmoze.

Abstract (english)

This research is focused on water purification technology via adsorption on microplastics combined with reverse osmosis. Low-energy (XLE) brackish water membranes were used, as well as microplastics formed by chafing of commonplace packaging material (polypropylene and polyethylene terephthalate). The purification process was conducted in distilled water as well, for comparison. One substance has been chosen out of each of these groups: pharmaceuticals, pesticides and industrial byproducts. These are mebendazole - a widely used antiparasitic, clothianidin - an insecticide belonging to the group of neonicotinoids, and N-nitrosodipropylamine - a simple and common byproduct of industrial processes that can have a toxic effect on humans and animals. The influence of particle size on adsorption was explored. Two fractions were tested, 100 - 300 μm and 300 - 500 μm. HPLC analytical method was used to determine the pollutant concentrations. High removal rates (> 97,8 %) were achieved for all compounds using the combined method of adsorption and reverse osmosis.

• Keywords: mikroplastika; onečišćujuće tvari; reverzna osmoza; mebendazol; klotianidin; N-nitrozodipropilamin
• Keywords (english): microplastics; micropollutants; reverse osmosis; mebendazole; clothianidin; N-nitrosodipropylamine
• Language: croatian
• URN:NBN: urn:nbn:hr:149:641017
• Project: Number: IP-2019-04-9661; Title: Primjena naprednih tehnologija obrade voda za uklanjanje mikroplastike; Title: Advanced Water Treatment Technologies for Microplastics Removal; Acronym: AdWaTMiR; Leader: Tomislav Bolanča; Jurisdiction: Croatia; Funder: HRZZ; Funding stream: IP
• Study programme: Title: Environmental Engineering - Graduate study; Study programme type: university; Study level: graduate; Academic / professional title: sveučilišni/a magistar/magistra inženjer/inženjerka ekoinženjerstva (sveučilišni/a magistar/magistra inženjer/inženjerka ekoinženjerstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Embargoed access; Embargo expiration date: 2024-08-22
• Created on: 2024-02-28 14:13:48