Browse > Article

Recovery of PET from Final Plastic Wastes using HDPE Cyclone Charger  

Jeon, Ho-Seok (Korea Institute of Geoscience and Mineral Resources)
Park, Chul-Hyun (Korea Institute of Geoscience and Mineral Resources)
Baek, Sang-Ho (Korea Institute of Geoscience and Mineral Resources)
Kim, Byoung-Gon (Korea Institute of Geoscience and Mineral Resources)
Publication Information
Resources Recycling / v.16, no.5, 2007 , pp. 51-56 More about this Journal
Abstract
Plastics are widely used in everyday life as very useful material. In Korea, about 4 million tons of plastic wastes are generated annually. However, recycling ratio is below 30%, and most of plastic wastes are disposed by landfill and incineration. Hence, the development of material separation technique that can recycle plastic wastes is a necessary situation. In this study, Triboelectrostatic separation for recovery of PET from final plastic wastes obtained from the sink product after wet-type gravity separation has been carried out. In the charging properties, the charge polarity and charge density of PET and PVC were very effective with the tirbo-charger made of PP and HDPE with the decrease in relative humidity. In material separation using HDPE cyclone charger, a PET grade of 96.80% and a recovery of 85.0% were achieved at 30 kV and the splitter position -2cm from the center. In order to obtain PET grade of 98.5%, PET recovery should be sacrificed by 24% with moving the splitter from the center to -6cm position.
Keywords
charger; cyclone; plastic wastes; electrostatic separation;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
1 Park, C.H., Jeon, H.S., Park, J.K., 2006: A study on charging properties and triboelectric series of plastic by tribo-charging, Korea Inst. Geosci. Mater. Resour, 43, pp560-569
2 G.L. Hearn, J.R. Ballard, The use of electrostatic techniques for the identification and sorting of waste packaging materials, Resour. Conserv. Recy. 44 (2005) 91-98   DOI   ScienceOn
3 T.X. Li, H. Ban, J.C. Hower, J.M. Stencel, K.Saito, Dry triboelectrostatic separation of mineral particles: A potential application in space exploration, J. Electrostat. 47 (1999) 133-142   DOI   ScienceOn
4 Inculet, I. I. Castle, G. S. P. Brown, J. D., 1998: Electrostatic separation of plastics for recycling. Part. Sci. Technol, 16, pp. 91-100   DOI   ScienceOn
5 Lowell, J., Rose-Innes, A. C., 1980: Contact electrification. Advances In Physics. 29, pp.947-1023   DOI   ScienceOn
6 Gente, V., et al, 2003: Electrical separation of plastics coming from special waste, Waste. Manage, 23, pp951-958   DOI   ScienceOn
7 W. Jing, M.J. Realff, Design and optimization of free-fall electrostatic separators for plastics recycling, AlChE. J. 49 (2003) 3138-3149   DOI   ScienceOn
8 Jeon, H.S., Park, C.H., Kim, B.G., Park, J.K., 2006: The development of electrostatic separation technique for recycling of life circles waste plastic, J. Korean lust. Resour. Recy, 15, pp28-36   과학기술학회마을
9 Amelia, L. Craighill, Powell, J. C, 1996: Lifecycle assessment and economic evaluation of recycling: a case study, Resour. Conserv. Recy, 17, pp75-96   DOI   ScienceOn
10 J. Cui, E. Forssberg, Mechanical recycling of waste electric and electronic equipment: a review, J. Hazard. Mater. B99 (2003) 243-263
11 Higashiyama, Y., Ujiie, Y., Asano, K., 1997: Triboelectrification of plastic particles on a vibrating feeder laminated with a plastic film, J. Electrostat, 42, pp.63-68   DOI   ScienceOn
12 Woodhead, S.R., Armour-Chelu, D.l, 2003: The influence of humidity, temperature and other variables on the electric charging characteristics of particulate aluminium hydroxide in gas-solid pipelines flows, J. Electrostat., 58, pp171-183   DOI   ScienceOn
13 Reid, L. W., 1996: Plastic incineration versus recycling: a comparison of energy and landfill cost savings, J. Hazard. Mater, 47, pp295-302   DOI   ScienceOn
14 Kelly, E. G., Sottiswood, D. J., 1989: The theory of electrostatic separations: a review, part. I Fundamentals, Miner. Eng, 2, pp33-46   DOI   ScienceOn
15 International Workshop on Extended Producer Responsibility (EPR), Current state of EPR-based regulations and policies on recycling products at domestic and international level, June 27, Seoul, Korea (2003)