20.500.12556/RUL-138878 Adsorpcija kovin iz odpadnih vod na mikroplastiko Adsorption of metals from wastewater onto microplastics 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. 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. adsorpcija biofilm kadmij kovine mikroplastika adsorption biofilm cadmium metals microplastic true false false Slovenski jezik Angleški jezik Magistrsko delo/naloga 2022-08-24 10:00:00 2022-08-24 10:00:09 2022-09-15 04:17:20 0000-00-00 00:00:00 2022 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 22301 120546819 Simoncic_Mojca_-_Adsorpcija_kovin_iz_odpadnih_vod_na_mikroplastiko.pdf Simoncic_Mojca_-_Adsorpcija_kovin_iz_odpadnih_vod_na_mikroplastiko.pdf 1 AA337425BE501567946957D3513BF0B6 51642a5a1761a09c09e7b7245065930afd54f192c5c14779d694396ece2e1c18 c09857b4-2382-11ed-92af-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=159363 Fakulteta za kemijo in kemijsko tehnologijo 0 0 0