Uporaba odpadnega materiala kot katalizatorja za heterogeno Fentonovo oksidacijo

magistrsko delo

Matej Sašek (Author), Gabriela Kalčíková (Mentor), Marjan Marinšek (Thesis defence commission member), Andreja Žgajnar Gotvajn (Thesis defence commission member)

Abstract

Intenzivna industrija v sedanjem času s svojim delovanjem povzroča veliko onesnaževanje okolja. Do onesnaževanja pride zaradi napačnega ravnanja z industrijskimi odpadki in slabega čiščenja odpadnih vod. Pri preprečitvi vstopa onesnaževal v širše okolje imajo pomembno vlogo čistilne naprave, ki morajo učinkovito odstraniti onesnaževala iz odpadnih vod. Namen magistrske naloge je preučiti možnost uporabe odpadnega materiala v vlogi katalizatorja pri heterogeni Fentonovi oksidaciji, ki je učinkovita metoda pri čiščenju odpadnih vod. Uporabili smo z železom bogato zemljo iz onesnaženega območja in železove opilke, pri čemer smo uporabili raztopino propanojske kisline kot modelno odpadno vodo. Pri poskusih smo se osredotočili na spreminjanje in določitev spremenljivk (pH, koncentracija H2O2 in količina katalizatorja), pri katerih lahko s Fentonovo oksidacijo dosežemo največjo učinkovitost čiščenja, ki smo jo določili na podlagi odstotka odstranitve celotnega organskega ogljika (TOC). Zemlja ni pokazala nobene katalitske aktivnosti, vendar ima dobre adsorpcijske lastnosti. V primeru uporabe železovih opilkov nam je pri optimalnih pogojih uspelo zmanjšati TOC za 57 %

Keywords

odpadki;odpadna voda;čiščenje odpadnih vod;zemlja;železovi opilki;Fentonova oksidacija;katalizatorji;šaržno obratovanje;pretočno obratovanje;magistrska dela;

Data

Language:	Slovenian
Year of publishing:	2020
Typology:	2.09 - Master's Thesis
Organization:	UL FKKT - Faculty of Chemistry and Chemical Technology
Publisher:	[M. Sašek]
UDC:	628.3:66.094.3(043.2)
COBISS:	20893699
Views:	457
Downloads:	108
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	The use of waste material as a catalyst for heterogeneous Fenton oxidation
Secondary abstract:	The intense industry in the modern world pollutes the environment. The pollution is usually caused by solid waste that is not managed properly or by untreated wastewaters. Therefore, wastewater treatment plants are often employed to remove harmful substances from the wastewaters. The master thesis aims to evaluate the catalytic properties of waste materials used for Fenton oxidation, which is an efficient method for wastewater treatment. We used iron-rich soil from the contaminated area and iron shavings. As model wastewater, we used a solution of propionic acid. In the experimental work, we focused on the evaluation of the key parameters of Fenton oxidation (pH, H2O2 concentration and amount of catalyst) to gain maximal efficiency, which we determined as removal of total organic carbon (TOC) with time. As a result, iron-rich soil did not show any catalytic activity, yet, it showed high-grade adsorption capacity. On the other hand, with the use of iron shavings, we were able to reduce TOC by 57 % at optimal conditions.
Secondary keywords:	Fenton oxidation;iron shavings;soil;wastes;wastewater;
Type (COBISS):	Master's thesis/paper
Study programme:	1000376
Embargo end date (OpenAIRE):	1970-01-01
Thesis comment:	Univ. v Ljubljani, Fak. za kemijo in kemijsko tehnologijo
Pages:	50 f.
ID:	11858328