Vinsamlegast notið þetta auðkenni þegar þið vitnið til verksins eða tengið í það: http://hdl.handle.net/1946/30590
To respond to increasing popularity of aluminum, the aluminum industry has been growing and producing more than ever. Alongside the production, a large amount of hazardous waste is being generated which is causing problems regarding handling and disposal. The purpose of this study is to provide an overview of solid waste processes, compositions and its disposal methods. Furthermore, to compare waste processes and identify improvements between the Icelandic aluminum smelters; Alcoa Fjarðaál, Norðurál and ISAL. The results suggest that considerable differences are in waste management between smelters that can result in more waste generation. Spent potlining is a troublesome waste that is a growing concern in the aluminum industry today due to its hazards. Recycling methods exist for this waste but challenges with expenses, legal complications and transportation have led to failure in utilizing these methods. Therefore, motivation is needed from authorities to explore new recycling methods. Composition of the waste is a difficult factor since it varies between smelters. In addition, most of the waste is lacking chemical analysis because of lack of need to conduct such analysis if smelters are using engineered landfills as a disposal method. Because of chemical variation, it is increasingly important to classify the waste since it leads to more re-use or recycling opportunities.
|MSc_Regína Þórðardóttir_31052018.pdf||1.69 MB||Opinn||Heildartexti||Skoða/Opna|
|Yfirlýsing_Regína Þórðardóttir.pdf||123.24 kB||Lokaður||Yfirlýsing|