20.500.12556/DKUM-13822 OZONIRANJE MODELNIH OBARVANIH VOD Z DOLOČEVANJEM RAZGRADNIH PRODUKTOV OKSAZINSKEGA BARVILA OZONATION OF COLOURED MODEL WATERS WHITH DETERMINATION OF OXAZINE DYE DEGRADATION PRODUCT Obarvane odpadne vode iz tekstilne industrije, so lahko zelo obremenjene z različnimi tipi barvil, imajo različne pH vrednosti, povišane KPK vrednosti in so visokih temperatur. S sodobnimi postopki (kemijsko-oksidacijskimi) lahko učinkovito razbarvamo takšne vrste odpadnih vod npr. obdelava z ozonom (O3) in vodikovim peroksidom. Namen naloge je bil raziskati učinke oksidacijskih tehnologij, predvsem ozoniranja ter sledenje razgradnim produktom. V ta namen smo uporabili komercialna tekstilna barvila in sicer: direktno oksazinsko barvilo (C.I. Direct Blue 106), reaktivno antrakinonsko barvilo (C.I. Reactive Blue 49) in kislo azo barvilo (C.I. Acide Blue 193). Vsa tri barvila smo ozonirali, podrobneje pa smo preiskali in poskušali določiti razgradne produkte le direktnemu barvilu (C.I. Direct Blue 106) z oksazinsko kromoforno skupino, saj o tem tipu barvila literatura do sedaj še ne beleži objav o razgradnih produktih po postopku ozoniranja. Eksperimentalno delo zajema preučevanje učinkov procesov razbarvanja na podlagi sprotnega spremljanja absorbance, vrednosti pH, prevodnosti in določitev optimalnih pogojev razbarvanja z ozonom. Prav tako delo zajema kompleksne analizne metode kot npr. UV/VIS spektrofotometrijo, IR spektroskopijo, spektrofotometrijo za določevanje ionov, IC kromatografijo in MS spektrometrijo v kombinaciji s tekočinsko kromatografijo LC-MS, za določevanje razgradnih produktov direktnega oksaziskega barvila po ozoniranju. Rezultati magistrskega dela predstavljajo, da je izbran oksidacijski postopek učinkovit za razbarvanje takšnih tipov barvil, saj je razbarvano vodo potrebno le še nevtralizirati in je primerna za izpust v kanalne vode ali za ponovno uporabo v tehnoloških procesih. Tako bi pomembno vplivali na zmanjšanje porabe sveže pitne in tehnološke vode. Coloured textile wastewaters contain very different types of dye, they have different pH values, increased COD values and usually have high temperatures. With contemporary procedures (chemical-oxidation) we are able to effectively discolourate such wastewaters by using ozone and hydrogen peroxide. The aim of the research was to study the effectivity of oxidation technology, mainly of ozone and analyse degradation products. For this purpose we used three different textile dyes with different chromophor groups: direct oxazine dye (C.I. Direct Blue 106), reactive anthraquinone dye (C.I. Reactive Blue 49) and acid azo dye (C.I. Acid Blue 193). We ozonated all three dyes, but we investigated in detail only the degradation products of the direct dye with oxazine chromophore (C.I. Direct Blue 106) because no degradation product by ozonation on such type of dye has been known in literature yet. The performed experimental work includes efficiency study of decolourisation processes on the basis of absorbance, pH value and conductivity measurements together with determination of optimal conditions of decolourisation by ozonation method. This part also includes complex analysis methods to determine decomposition products of the oxazine dye, such as: UV/VIS spectrofotometry, IR spectroscopy, ion determination spectrofotometry, IC chromotography and MS spectrometry in combination with liquid chromotography. The results show that ozonation is an appropriate method for decolourisation of such type of dyes, as decoloured wastewater only needs to be neutralized and it is suitable to be released in rivers or to be reused in technology processes. In that way we could effectively reduce the consumption of drinking and technology water. ozoniranje obarvane vode C.I. Direct Blue 106 C.I. Reactive Blue 49 C.I. Acid Blue 193 oksazin razbarvanje razgradni produkti UV/VIS IR RAMAN HPIC MS LC-MS ozonation coloured wastewater C.I. Direct Blue 106 C.I. Reactive Blue 49 C.I. Acid Blue 193 oxazine decolouration degradation products UV/VIS IR RAMAN HPIC MS LC-MS true true false [P. Lesjak] Slovenski jezik Angleški jezik Magistrsko delo 2010-05-03 09:38:28 2010-05-07 08:05:26 2022-04-12 11:30:56 2023-12-16 03:32:16 2010 0 Maribor 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 628.3.094-926.214:677.027.4 14143254 URN:SI:UM:DK:JZYQR7YF MAG_Lesjak_Polonca_2010.pdf MAG_Lesjak_Polonca_2010.pdf 1 8863213C09DF225572F629EE43F1A24C 7cf38c9ea8453a4aed63040d2be5e0b2cfeb505a5facec0db2ea743eb650b2a2 00ca9d0a-7c04-11eb-bb7a-00155d0001ca 20.500.12556/dkum/1c88b275-7188-4fb5-9cf8-c3483e0e42e1 https://dk.um.si/Dokument.php?lang=slv&id=14263 Fakulteta za strojništvo 0 0 0