Okolišni aspekti primjene ferata (VI) za uklanjanje farmaceutika iz vode

undergraduate thesis

• Title (english): Environmental aspects of the application of ferrates (VI) for the removal of pharmaceuticals from water
• Author: Iva Bićanić
• Mentor: Ana Lončarić Božić (mentor)
• Committee member: Ana Lončarić Božić (predsjednik povjerenstva)
• Committee member: Hrvoje Kušić (član povjerenstva)
• Committee member: Šime Ukić (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: NATURAL SCIENCES; Chemistry; Analytic Chemistry

Abstract

Detektirana prisutnost farmaceutika u okolišu predstavlja potencijalnu opasnost za živi svijet već i u nanogramskim koncentracijama zbog njihove biološke aktivnosti te potencijalno toksičnih razgradnih produkata. Glavni su izvor otpadne vode u koje ovi spojevi kontinuirano dospijevaju. S obzirom na neučinkovitost postojećih metoda obrade otpadnih voda u tom području, razvijaju se i istražuju nove, ekonomski isplative i okolišno prihvatljive metode, čija primjena neće davati toksične nusprodukte koji bi narušili kakvoću vode u okolišu, uključujući vodu za piće. Jedna od njih je i primjena ferata (VI) kao kemijskog agensa višestruke funkcije – oksidacijskog i koagulacijskog sredstva, koje često nazivaju i „zeleni oksidansi“. Cilj ovog rada je upravo istražiti primjenu ferata (VI) kao oksidacijskog sredstva u pročišćavanju otpadnih voda, točnije pri uklanjanju farmaceutika iz otpadnih voda. Primjenom metode odzivnih površina određeni su optimalni uvjeti uklanjanja farmaceutika diklofenaka u šaržnom reaktoru primjenom K2FeO4. Učinkovitost razgradnje, odnosno uklanjanje diklofenaka tijekom procesa praćeni su analitičkim metodama te su određeni i fizikalno-kemijski pokazatelji, KPK (kemijska potrošnja kisika) te UOU (ukupni organski ugljik). U ovom radu postignuto je uklanjanje diklofenaka od 95,1 %. Ustanovljeno je da su pH vrijednost i masena koncentracija ferata gotovo podjednako utjecajni procesni parametri, pri čemu je optimalna vrijednost pH iznosila 9 te masena koncentracija ferata 75 mg/L.

Abstract (english)

The detected presence of pharmaceuticals in the environment presents potential danger for organisms, even in nanogramic concentrations, due to their biological activity and toxic degradation products. The main source is wastewater where these compunds are continuously arriving. Due to low efficiency of existing wastewater treatment mehods in this field, some new economical and environmentally acceptable methods whose application shouldn't produce any toxic byproducts, are being developed. One of the proposed methods is application of ferrate (VI), as a multiple function chemical agent – an oxidazing and coagulation agent which is, along with it's high oxidation potential, often called „a green oxidant“. The aim of this study was to investigate the application of ferrates (VI) as an oxidation agent for wastewater treatment, more precisely for removal of pharmaceuticals from wastewater. Response surface methodology (RSM) defines optimal experimental conditions for removal of pharmaceutical diclofenac (DCF) in batch reactor by application of K2FeO4. Degradation rate and removal of carbamazepine during the process is monitored by some analytical techniques such as high performance liquid chromatography, as well as by determination of physico-chemical indicators, COD (Chemical oxigen demand), TOC (Total organic compound). In this paper, removal rate of pharmaceutical diclofenac of 95,1 % was achieved. It is estimated that the pH value of solution and the concentration of ferrates have almost even level of importance and influence for the process, while the optimal pH value is 5 and concentration of ferrates is 75 mg/L.

• Keywords: farmaceutici; otpadne vode; ferati; Metoda odzivnih površina
• Keywords (english): pharmaceuticals; wastewater; ferrates; Response surface methodology
• Language: croatian
• URN:NBN: urn:nbn:hr:149:526966
• 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: Environmental Engineering - Undergraduate study; Study programme type: university; Study level: undergraduate; Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka ekoinženjerstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka ekoinženjerstva)
• Type of resource: Text
• File origin: Born digital
• Access conditions: Closed access
• Created on: 2022-07-08 14:44:00