Adsorpcija kovin iz odpadnih vod na mikroplastiko

magistrsko delo

Mojca Simončič (Author), Gabriela Kalčíková (Mentor), Urška Šebenik (Thesis defence commission member), Andreja Žgajnar Gotvajn (Thesis defence commission member)

Abstract

Mikroplastika so plastični delci manjši od 1 mm, ki jih lahko najdemo v zraku, vodi, zemlji in sedimentih, v zelo različnih oblikah, barvah in kemijskih sestavah. Mikroplastika v naravnem okolju adsorbira in akumulira različna onesnaževala, kot so obstojna organska onesnaževala in kovine. Koncentracije onesnaževal na mikroplastiki so lahko tudi od 10 do 100-krat višje od tistih, ki jih najdemo v okolju. V magistrskem delu smo se osredotočili na adsorpcijo kovin na mikroplastiko. Najprej smo preiskovali adsorpcijo kovin iz odpadne vode na mikroplastiko pridobljeno iz kozmetičnih izdelkov. To mikroplastiko smo tudi okarakterizirali s pomočjo analize porazdelitve velikosti delcev in s SEM/EDS analizo. V drugem delu smo adsorbirali kadmij na mikroplastiko, ki je bila obraščena z biofilmom in je tako najbolj podobna mikroplastiki v okolju. Ugotovili smo, da je adsorpcija kadmija bistveno višja na mikroplastiki obdani z biofilmom, kot na mikroplastiki brez biofilma.

Keywords

biofilm;kadmij;kovine;mikroplastika;odpadne vode;magistrska dela;

Data

Language:	Slovenian
Year of publishing:	2022
Typology:	2.09 - Master's Thesis
Organization:	UL FKKT - Faculty of Chemistry and Chemical Technology
Publisher:	[M. Simončič]
UDC:	504.5:66.081.3(043.2)
COBISS:	120546819
Views:	22
Downloads:	10
Average score:	0 (0 votes)
Metadata:

Other data

Secondary language:	English
Secondary title:	Adsorption of metals from wastewater onto microplastics
Secondary abstract:	Microplastics are small plastic pieces up to one millimetre long. They can be found in air, water, soil and sediments in different shapes, colours and chemical compositions. Microplastics in the environment can adsorb and accumulate different pollutants, such as pharmaceuticals, persistent organic pollutants and metals. Concentrations of pollutants accumulated on such particles can be 10–100 times higher than the concentrations in the surrounding environment. The aim of the master's thesis was to evaluate if metals can be adsorbed onto microplastics. We first investigated the adsorption of metals from wastewater onto microplastics, which are obtained from cosmetic products. The morphological properties of this microplastic were characterized by particle size distribution analysis and SEM/EDS analysis. In the second part, we verified the adsorption of cadmium onto microplastics with biofilm, which are the most similar to microplastics in the environment. Adsorption of cadmium is significantly higher on microplastics with biofilm, than on microplastics without it.
Secondary keywords:	adsorption;biofilm;cadmium;metals;microplastic;Adsorpcija;Univerzitetna in visokošolska dela;
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, smer Kemijsko inženirstvo
Pages:	40 str.
ID:	16261711