Journal of the Korea Organic Resources Recycling Association (유기물자원화)

Korea Organic Resources Recycling Association (유기성자원학회)
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Development of Filter Sorting Process for Cigarette Butt Recycling and Extraction of Cellulose Acetate

담배꽁초 재활용을 위한 필터 선별공정 개발 및 셀룰로오스 아세테이트의 추출

  • Minseon Park (Department of Environmental and Energy Engineering, Anyang University) ;
  • Minjung Jung (Department of Environmental and Energy Engineering, Anyang University) ;
  • Noh-sup Lee (Department of Environmental and Energy Engineering, Anyang University) ;
  • Soochul Rhee (Mirea Environ) ;
  • Namhoon Lee (Department of Environmental and Energy Engineering, Anyang University)
  • 박민선 (안양대학교 환경에너지공학과) ;
  • 정민정 (안양대학교 환경에너지공학과) ;
  • 이노섭 (안양대학교 환경에너지공학과) ;
  • 이수철 ((주)미래엔바이런 ) ;
  • 이남훈 (안양대학교 환경에너지공학과 )
  • Received : 2024.03.18
  • Accepted : 2024.04.16
  • Published : 2024.06.30
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Abstract

A study approached the development of a process for efficiently recycling discarded cigarette butts, reported as a major source of microplastic pollution in aquatic environments. Cigarette butts were sorted to extract filters, and cellulose acetate, the raw material of the filters, was extracted to a high degree of purity. The sorting of filters from cigarette butts was conducted through both wet and dry processes, each with optimized sorting conditions. Wet stirring sorting considered factors such as solid-liquid ratio, stirring speed, and stirring temperature. The highest efficiency of wet stirring sorting, at 46.21%, was observed with a solid-liquid ratio of 1:45, stirring speed of 200 rpm, and stirring temperature of 50℃. Dry wind power sorting took into account moisture content and residence time. The filter sorting efficiency reached its peak at 57.10% with a moisture content of 20% and a residence time of 5 minutes. There was no significant difference in the recovery rate of cellulose acetate between the two sorting processes. Dry wind power sorting was deemed a more advantageous process in terms of energy and environmental considerations within the scope of this study.

본 연구에서는 수계 미세플라스틱의 주오염원으로 보고되고 있는 버려진 담배꽁초로부터 필터를 선별하고, 필터의 원료물질인 셀룰로오스 아세테이트를 고순도 추출하여 효율적인 재활용공정을 개발하고자 하였다. 담배꽁초로부터 필터 선별 공정을 습식과 건식으로 구분하여 각 공정별 최적 선별조건을 도출하고, 선별된 필터로부터 셀룰로오스 아세테이트를 추출하여 재활용 가능성 및 선별공정별 효율을 평가하였다. 습식교반선별 인자로는 고액비, 교반속도, 교반온도를 고려하였다. 습식교반선별 효율은 고액비 1:45, 교반속도 200rpm, 교반온도 50℃에서 선별효율이 46.21%로 가장 높게 분석되었다. 건식풍력선별 인자는 함수율과 체류시간을 고려하였다. 필터 선별효율은 함수율 20%, 체류시간 5분에서 선별효율이 57.10%로 가장 높았다. 셀룰로오스 아세테이트의 회수율은 습식교반선별에 의한 필터에서 48.68%, 건식풍력선별공정에서 47.68%로 두 공정의 차이는 없는 것으로 나타났다. 건식풍력선별의 선별효율이 57.10%로 습식교반선별에 비하여 10.89% 높으며, 습식교반선별의 경우 교반 후에 발생하는 폐수와 폐기물, 교반 및 가열 시 필요한 에너지를 고려하였을 때 건식풍력선별이 환경 및 에너지 요구량 측면에서 더 유리한 공정으로 판단된다.

Keywords

References

  1. Araujo, M. C. B., & Costa, M. F., "A. critical review of the issue of cigarette butt pollution in coastal environments", Environmental Research, 172, pp. 137~149. (2019). 
  2. Cahn, Z., Drope, J., Hamill, S., Islami, F., Liber, A., Nargis, N., Stoklosa, M., The Tobacco Atlas, 6th ed., American Cancer Society and Vital Strategies, pp. 75. (2018). 
  3. Rebischung, F., Chabot, L., Biaudet, H., & Pandard, P., "Cigarette butts: A small but hazardous waste, according to European regulation", Waste Management, 82, pp. 9~14. (2018). 
  4. Conradi, M., & Sanchez-Moyano, J. E., "Toward a sustainable circular economy for cigarette butts, the most common waste worldwide on the coast", Science of the Total Environment, 847, pp. 157634. (2022). 
  5. Ranjkesh, Z., Nasouri, K. "Facile synthesis of novel porous nickel/carbon fibers obtained from cigarette butts for high-frequency microwave absorption", J. of Environmental Chemical Engineering, 10(1), pp. 106969. (2021). 
  6. Conradi, M., & Sanchez-Moyano, J. E., "Toward a sustainable circular economy for cigarette butts, the most common waste worldwide on the coast", Science of the Total Environment, 847, pp. 157634. (2022). 
  7. Green, D. S., Tongue, A. D., & Boots, B., "The ecological impacts of discarded cigarette butts", Trends in Ecology & Evolution, 37(2), pp. 183~192. (2022). 
  8. Rochman, C. M., Hoh, E., Kurobe, T., & Teh, S. J. "Ingested plastic transfers hazardous chemicals to fish and induces hepatic stress" Scientific Reports, 3(1), pp. 1~7. (2013). 
  9. Belzagui, F., Buscio, V., Gutierrez-Bouzan, C., & Vilaseca, M., "Cigarette butts as a microfiber source with a microplastic level of concern", Science of The Total Environment, 762, pp. 144165. (2021). 
  10. Lee, W. J., Lee, K. S., Kim, J. D., & Ryu, J. Y. "A study on the recycling of kraft carrier board by dry circular action pre-treatment and alkaline soaking", Journal of Korea TAPPI, 51(6), pp. 102~109. (2019). 
  11. Kim, S. K., Lee, J. K., & Su ng, D. H., "A study on pulping process condition through design of experiments", Applied Chemistry for Engineering, 9(4), pp. 529~535. (1998). 
  12. Hac, P., Padariya, C., & Cieslik, B. M., "Evaluation of mercury content in combustible tobacco products by employing cold vapor atomic absorption spectroscopy and considering the moisture content: a comprehensive study", Monatsh Chem, 153, pp. 829~836. (2022). 
  13. Kurmus, H., & Mohajerani, A., "The toxicity and valorization options of cigarette butts", Waste Management, 104, pp. 104~118. (2020). 
  14. Khoshnevisan, K., Maleki, H., Samadian, H., Shahsavari, S., Sarrafzadeh, M. H., Larijani, B., Abedin Dorkoosh, F., Haghpanah, V., Khorramizadeh, M. R., "Cellulose acetate electrospun nanofibers for drug delivery systems: Applications and recent advances", Carbohydrate Polymers, 198, pp. 131~141. (2018). 
  15. Nair, K., Sambhudevan, S., and Shankar, B., "Synthesis, characterization and dye absorbing properties of cellulose acetate from used cigarette buds", Materials Today: Proceedings, 18, pp. 5006~5011. (2019). 
  16. Mahto, A., Halakarni, M. A., Maraddi, A., D'Souza, G., Samage, A. A., Thummar, U. G., and Nataraj, S. K., "Upcycling cellulose acetate from discarded cigarette butts: Conversion of contaminated microfibers into loose-nanofiltration membranes for selective separation", Desalination, 535, pp. 115807. (2022). 
  17. Ahlawat, Y., Bhardawaj, A., and Bhardwaj, R. "An experimental study on the stability and flow characteristics of mastic asphalt mix using cigarette butt additive", Materials Today: Proceedings, 65, pp. 651~661. (2022). 
  18. Ministry of Environment, Enforcement Regulation of the Resource Saving and Recycling Promotion Act, Annex 7, Article 20-2: Quality Standards for Solid Fuel Products. (2020). 
  19. Rodrigues Filho, G., Monteiro, D. S., da Silva Meireles, C., de Assuncao, R. M. N., Cerqueira, D. A., Barud, H. S., and Messadeq, Y., "Synthesis and characterization of cellulose acetate produced from recycled newspaper", Carbohydrate Polymers, 73(1), pp. 74~82. (2008). 
  20. Kim, Y. H., and Kim, H. S., "Preparation of surface-hydrolyzed cellulose acetate fibers and their applications to LCD rubbing cloth", Polymer(Korea), 37(1), pp. 52~60. (2013).