Oplaščanje magnetnih nanodelcev z lizinom: vpliv vezave na učinkovitost odstranjevanja kovin iz gošče mulja

magistrsko delo

Ken Kolar (Author), Lidija Fras Zemljič (Mentor), Ivan Anžel (Co-mentor), Olivija Plohl (Co-mentor)

Abstract

Možnosti ravnanja z odpadnimi goščami iz komunalnih čistilnih naprav, zaradi povišane vsebnosti težkih kovin, omejuje zakonodaja. Kljub visokemu deležu organskih snovi in hranil, je njihova uporaba v kmetijstvu prepovedana. Ena izmed obetajočih naprednih metod odstranjevanja težkih kovin je adsorpcija na magnetne nanodelce, ki se jih po čiščenju odstrani z magnetno separacijo. Pri magistrskem delu smo sintetizirali in okarakterizirali tri sisteme magnetnih nanokompozitov: maghemit – L-lizin, ki so se razlikovali po načinu vezave L-lizina. Za uspešno se je izkazala le kovalentna vezava. Ta sistem je pri čiščenju vzorca mulja dosegel 37 % učinkovitost odstranitve Zn, 27 % Cr(VI) in 26 % Cu.

Keywords

mulj;težke kovine;magnetni nanodelci;maghemit;L-lizin;magistrske naloge;

Data

Language:	Slovenian
Year of publishing:	2019
Typology:	2.09 - Master's Thesis
Organization:	UM FS - Faculty of Mechanical Engineering
Publisher:	[K. Kolar]
UDC:	620.3:549.25(043.2)
COBISS:	23031574
Views:	660
Downloads:	98
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Coating of Magnetic Nanoparticles with Lysine: Effect of Bonding on the Efficiency of Metal Removal from Sludge
Secondary abstract:	Due to increased content of heavy metals, possibilities of waste sludge management from municipal wastewater treatment plants are limited by legislation. Despite of high content in organic substances and nutrients, sludge use in agriculture is restricted. One of the advanced methods for metal removal is adsorption on magnetic nanoparticles, which can later be removed by magnetic separation. Three systems of magnetic nanocomposites: maghemite – L-lysine, which differed in the L-lysine binding method, were synthesized and characterized. Only chemical bonding was successful. This system achieved 37, 27 and 26 % removal efficiency of Zn, Cr(VI), and Cu from a sludge sample respectively.
Secondary keywords:	sludge;heavy metals;magnetic nanoparticles;maghemite;L-lysine;
Type (COBISS):	Master's thesis/paper
Thesis comment:	Univ. v Mariboru, Fak. za strojništvo, Tehniško varstvo okolja
Pages:	IX, 80 str.
ID:	11204414