INTEGRACIJA NAPREDNIH TEHNOLOGIJ ČIŠČENJA OBARVANIH ODPADNIH VOD IZ TEKSTILNE INDUSTRIJE

Novak, Nina

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Title:	INTEGRACIJA NAPREDNIH TEHNOLOGIJ ČIŠČENJA OBARVANIH ODPADNIH VOD IZ TEKSTILNE INDUSTRIJE
Authors:	ID Novak, Nina (Author) ID Majcen Le Marechal, Alenka (Mentor) More about this mentor... ID Brodnjak Vončina, Darinka (Comentor)
Files:	DR_Novak_Nina_2011.pdf (3,61 MB) MD5: 6B63C60419DF41E97FA51A494FB93223 PID: 20.500.12556/dkum/8b622673-7eb5-4e8e-b37f-d0e3d899b499
Language:	Slovenian
Work type:	Dissertation
Organization:	FS - Faculty of Mechanical Engineering
Abstract:	V doktorski disertaciji predstavljamo študijo določitve stroškovno optimalnih obratovalnih pogojev za razbarvanje in čiščenje vodne raztopine barvila C. I. Reactive Blue 268 z naprednimi procesi čiščenja. Najprej predstavljamo rezultate laboratorijskih eksperimentov in matematične modele procesov UV/H2O2 in Fe2+/H2O2. Rezultati kažejo, da lahko z uporabo metodologije odzivnih površin razvijemo ustrezna matematična modela, ki statistično zadostno opišeta odvisnost merjenih odzivov od izbranih (vplivnih) obratovalnih parametrov. Nato prikazujemo študijo optimiranja energijsko intenzivnega procesa UV/H2O2. Kot vplivne parametre smo upoštevali koncentracijo barvila, koncentracijo vodikovega peroksida, pH, čas obdelave in temperaturo. Stroške elektrike, stroške vodikovega peroksida in stroške vode za uravnavanje koncentracije barvila smo upoštevali kot relevantne obratovalne stroške. Čeprav so minimalni stroški čiščenja ocenjeni na visokih 17 €/m3, dobljeni rezultati jasno kažejo, da moramo, če želimo zagotoviti obratovalno in ekonomsko učinkovitost, proces optimirati z obeh vidikov hkrati. Ekonomsko učinkovitost lahko dodatno izboljšamo z integracijo naprednih procesov čiščenja. Kot alternative v integriranem sistemu smo upoštevali proces UV/H2O2, proces Fe2+/H2O2 in membransko filtracijo. Procesno shemo integriranega procesa in vrednosti obratovalnih parametrov, pri katerih sistem obratuje pri minimalnih stroških, smo določili s pristopom, ki temelji na matematičnem programiranju. Iz rezultatov je razvidno, da lahko z ustrezno integracijo izbranih procesov znatno znižamo povprečne stroške čiščenja. V primerjavi s procesom UV/H2O2 so ocenjeni povprečni stroški čiščenja integriranega proces približno 75 % nižji (2,4 €/m3).
Keywords:	čiščenje odpadnih vod, tekstilna barvila, napredni oksidacijski postopki, optimiranje, matematično programiranje, metodologija odzivnih površin
Place of publishing:	[Maribor
Publisher:	N. Novak]
Year of publishing:	2011
PID:	20.500.12556/DKUM-20121
UDC:	628.3:677(043.3)
COBISS.SI-ID:	257975296
NUK URN:	URN:SI:UM:DK:GJTRBYNM
Publication date in DKUM:	24.09.2011
Views:	3779
Downloads:	342
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Categories:	KTFMB - FS
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Secondary language

Language:	English
Title:	INTEGRATION OF ADVANCED TECHNOLOGIES FOR COLORED TEXTILE WASTEWATER TREATMENT
Abstract:	Many processes have been proposed as an effective treatment technology for remediation of colored wastewaters. However, it has frequently been noted that some of them are economically unacceptable due to high operating cost. This thesis provides studies on approaches to determine cost-effective decoloration and mineralization of C. I. Reactive Blue 268 using advanced treatment technologies. First, the results of laboratory experiments and mathematical models of UV/H2O2 and Fe2+/H2O2 processes are presented. The results indicate that the processes can be modeled in a sufficient way by using the response surface methodology. Second, a study on optimization of an energy intensive UV/H2O2 process is presented. Dye concentration, hydrogen peroxide concentration, pH, treatment time, and temperature were considered to be influential operating parameters. Cost of electricity, cost of hydrogen peroxide, and cost of water needed to adjust the dye concentration were considered to be relevant operating costs. Although the minimal treatment cost were estimated to 17 €/m3, the results obtained clearly indicate that, in order to assure effective and economically efficient operation any given process should be simultaneously optimized from the perspective of both operational and economic efficiency. The latter can, however, be improved further by integration of advanced treatment technologies. UV/H2O2, Fe2+/H2O2 and membrane filtration were considered as alternatives for the integrated system. The integrated process flow sheet and values of operating parameters yielding minimal operating cost were determined. The results indicate that for the system studied significant reduction in average treatment cost can be achieved by proper integration of the denoted alternatives. Compared to the treatment cost of UV/H2O2, the estimated average treatment cost of an integrated system is approximately 75 % lower (2,4 €/m3).
Keywords:	wastewater treatment, textile dyes, advanced oxidation processes, optimization, mathematical programming, response surface methodology

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