Flotation separation of plastics mixtures from WEEE products
3 rd International Conference on Environmental Science and Technology, Budapest, Hungary on 19-23 October 2017.
Prof. Dr. Özer Çınar
The amount of WEEE (Waste of Electric and Electronic) has largely increased these years. Sorting the plastics into their family species is in essential process for plastic recycling. Among different plastic sorting technologies, density sorting and optical sorting are the most widely used methods. However, both of them have their disadvantages, thus, those plastics with dark colours or/and closed densities is more difficult to separate. Other limitations of plastic recycling exist as well, since many plastic are added with flame retardant which also sets difficulties to recycling process. In this case of study, we deal with the plastics the most present in WEEE like Acrylonitrile-butadiene-styrene (ABS), polypropylene (PP) and high impact polystyrene (HIPS), with Polyvinyl alcohol (PVA) as wetting agent, try to separate them by froth flotation. Therefore, the effect of particle size fractions, conditioning time and behaviour of wetting agent including the concentration is analysed, try to improve sorting efficiency and find appropriate surfactant.