Resources Recycling (자원리싸이클링)

The Korean Institute of Resources Recycling (한국자원리싸이클링학회)
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A Study on Material Separation of Heavy Group Plastics by Triboelectrostatic Separation

마찰하전형(摩擦荷電型) 정전선별(靜電選別)에 의한 고비중(高比重) 플라스틱 혼합물(混合物)의 재질분리(材質分離)에 관한 연구(硏究)

  • Published : 2007.04.27
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Abstract

In this study, we carried out the research on triboelectrostatic separation for heavy group plastics (PET, PVC) recovered from wet gravity separation. From the research on charging characteristic for the choice of charging materials, it was found that PP was optimum charging material to make high charging amount with opposite polarity for PET and PVC of heavy group. Therefore, we manufactured a charger of cyclone type using PP material for separation of PET and PVC. At optimum test conditions that used PP cyclone charger developed in this study, we developed a triboelectrostatic separation technique that can separate PET plastic up to grade of 98.5% and recovery of 86.2%. We established new separation technology that could recycle the PET and PVC heavy group plastics recovered from wet gravity separation.

본 연구에서는 마찰하전형정전선별법을 적용하여 폐플라스틱 종말품으로부터 회수된 고비중 산물에 대한 재질분리 실험을 수행하였다. 하전장치의 재질선정을 위한 하전특성 연구결과, PP가 고비중 폐플라스틱의 재질분리에 가장 효과적인 하전재질로 확인되어, PP재질을 이용한 cyclone 하전장치를 개발하였다. 본 연구에서 개발된 cyclone 하전장치를 이용한 재질분리 실험결과, 최적 실험조건에서 PET의 품위와 회수율이 각각 98.5%와 86.2%인 결과를 얻어, 종말품 heavy group 폐플라스틱의 재활용을 위한 재질분리 기술을 확립하였다.

Keywords

References

  1. Hoberg H., et al., 1997: Material Recycling of Thermoplastics, XX International Mineral Processing Congress, pp. 415-419
  2. 김혜태, 2002: 혼합 폐플라스틱 발생실태 및 재활용기술 현황에 관한 조사연구, 한국자원재생공사
  3. 박철현, 전호석, 김병곤, 김완태, 2006: 플라스틱 대전서열 및 하전특성 연구, 한국자원리싸이클링학회 춘계논문집, pp. 113-118
  4. 전호석, 박철현, 김병곤, 박재구, 2006: 생활계 폐플라스틱 재활용을 위한 정전선별 기술개발, 한국자원리싸이클링학회지, 15(1), pp. 28-36
  5. Li, T. X., Ban, H., Hower, J. C., Stencel, J. M., and Saito, K., 1999: Dry triboelectrostatic separation of mineral particles: A Potential Application in Space Exploration, Journal of Electrostatics, 47, pp. 133-142 https://doi.org/10.1016/S0304-3886(99)00033-9
  6. Jean Cross, 1987: Electrostatics: principles, problems and applications, Adam Hilger, pp. 17-46, pp. 237-242, pp. 425-433
  7. Jing Wei and Matthew J. Realff, 2003: Design and optimization of free-fall electrostatic separators for plastics recycling, AIChE Journal, 49(12), pp. 3139-3149
  8. Dr. Michael B. Biddle, 1999: Electrosatatic separation, APC Durables recycling workshop III, pp.118 -127
  9. Mihai Lungu, 2004: Electrical separation of plastic materialsusing the triboelectric effect, Minerals Engineering, 17, PP. 69-75 https://doi.org/10.1016/j.mineng.2003.10.010
  10. Matsushita Y., Mori N., 1999: Electrostatic separation of plastics by friction mixer with rotary blades, Electrical Engineering in Japan, 127, pp. 33-40 https://doi.org/10.1002/(SICI)1520-6416(199905)127:3<33::AID-EEJ4>3.0.CO;2-V
  11. H. S. Jeon, C. H. Park, B. K. Kim, J. K. Park, 2006: Development of triboelectrostaic separation technique for recycling of final waste plastic, Geosystem Engineering, 9(1), pp. 21-24 https://doi.org/10.1080/12269328.2006.10541250