OZONIRANJE MODELNIH OBARVANIH VOD Z DOLOČEVANJEM RAZGRADNIH PRODUKTOV OKSAZINSKEGA BARVILA

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Title:	OZONIRANJE MODELNIH OBARVANIH VOD Z DOLOČEVANJEM RAZGRADNIH PRODUKTOV OKSAZINSKEGA BARVILA
Authors:	ID Lesjak, Polonca (Author) ID Lobnik, Aleksandra (Mentor) More about this mentor... ID Kolar, Mitja (Comentor)
Files:	MAG_Lesjak_Polonca_2010.pdf (6,66 MB) MD5: 8863213C09DF225572F629EE43F1A24C PID: 20.500.12556/dkum/1c88b275-7188-4fb5-9cf8-c3483e0e42e1
Language:	Slovenian
Work type:	Master's thesis
Organization:	FS - Faculty of Mechanical Engineering
Abstract:	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.
Keywords:	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
Place of publishing:	Maribor
Publisher:	[P. Lesjak]
Year of publishing:	2010
PID:	20.500.12556/DKUM-13822
UDC:	628.3.094-926.214:677.027.4
COBISS.SI-ID:	14143254
NUK URN:	URN:SI:UM:DK:JZYQR7YF
Publication date in DKUM:	07.05.2010
Views:	3655
Downloads:	300
Metadata:
Categories:	KTFMB - FS
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Secondary language

Language:	English
Title:	OZONATION OF COLOURED MODEL WATERS WHITH DETERMINATION OF OXAZINE DYE DEGRADATION PRODUCT
Abstract:	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.
Keywords:	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

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