Optimiranje razgradnje prirodnih organskih tvari postupcima temeljenim na primjeni UV zračenja

Barta, Marija (2016) Optimiranje razgradnje prirodnih organskih tvari postupcima temeljenim na primjeni UV zračenja. = Optimization of natural organic matter degradation by UV-based processes. Master's thesis (Bologna) , Sveučilište u Zagrebu, Fakultet strojarstva i brodogradnje, UNSPECIFIED. Mentor: Juretić, Hrvoje and Cajner, Hrvoje.

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Abstract (Croatian)

Ovim radom istraživana je optimizacija razgradnje prirodnih organskih tvari postupkom UV/ H2O2 pomoću faktorskog plana pokusa i metode odzivne površine. Istraživanje se provodilo na modelnoj vodi te se pratio utjecaj promjene sadržaja otopljenog organskog ugljika i doze vodikovog peroksida na stupanj uklanjanja otopljenog organskog ugljika pri konstantnoj pH vrijednost. Faktorskim planom pokusa ispitan je plan glavnog pokusa, a metodom odzivne površine su se prikazali rezultati procesa. Za analizu rezultata koristio se programski paket Design Expert 7. Dobivenom regresijskom funkcijom modela prikazani su rezultati maksimalnog uklanjanja otopljenog organskog ugljika. Prema rezultatima, pri sadržaju otopljenog organskog ugljika od oko 8 mg/L te uz primjenu doze H2O2 od približno 250 mg/L postignuta je maksimalna razgradnja od oko 34%.

Abstract

The purpose of this study was to investigate the optimization of natural organic matter degradation by UV/H2O2 process using a factorial design of experiment and a response surface method. The research was performed on model water and the influence of variable concentration of dissolved organic carbon and hydrogen peroxide dosage on the removal degree of dissolved organic carbon at a constant pH was investigated The process was optimized by design of experiment and response surface methodology. Design Expert Software version 7 was used for developing and evaluating the experimental design. According to the results, with a dissolved organic carbon concentration of around 8 mg/L and hydrogen peroxide dosage less than 250 mg/L, the maximum degradation of about 34 % was achieved.

Item Type:	Thesis (Master's thesis (Bologna))
Uncontrolled Keywords:	prirodne organske tvari; napredni oksidacijski postupci; hidroksilni radikali; UV zračenje; vodikov peroksid; faktorski plan pokusa; metoda odzivne površine
Keywords (Croatian):	natural organic matter; advanced oxidation processes; hydroxyl radicals; UV radiation; hydrogen peroxide; factorial design of experiment; response surface method
Subjects:	TECHNICAL SCIENCE > Mechanical Engineering
Divisions:	500 Department of Energy, Power Engineering and Environment > 540 Chair of Water and Environmental Engineering 700 Department of Industrial Engineering > 720 Chair of Production Control
Date Deposited:	06 Dec 2016 09:56
Last Modified:	13 Dec 2016 09:11
URI:	http://repozitorij.fsb.hr/id/eprint/7131

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