Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Effect of Temperature and pH on the Floatability of PVA and POM Microplastics

PVA와 POM 미세플라스틱 Floatability에 미치는 온도와 pH의 영향

  • Seong Chan Kim (Department of Organic Materials and Fiber Engineering, Soongsil University) ;
  • Mintae Kim (Department of Organic Materials and Fiber Engineering, Soongsil University) ;
  • Hyungjin Cho (Department of Organic Materials and Fiber Engineering, Soongsil University) ;
  • Eunseo Lee (Department of Organic Materials and Fiber Engineering, Soongsil University) ;
  • Young Min Kwon (Department of Organic Materials and Fiber Engineering, Soongsil University) ;
  • Byung Hyo Kim (Department of Organic Materials and Fiber Engineering, Soongsil University)
  • 김성찬 (숭실대학교 유기신소재.파이버공학과) ;
  • 김민태 (숭실대학교 유기신소재.파이버공학과) ;
  • 조형진 (숭실대학교 유기신소재.파이버공학과) ;
  • 이은서 (숭실대학교 유기신소재.파이버공학과) ;
  • 권영민 (숭실대학교 유기신소재.파이버공학과) ;
  • 김병효 (숭실대학교 유기신소재.파이버공학과)
  • Received : 2023.01.04
  • Accepted : 2023.02.12
  • Published : 2023.02.28
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Abstract

Removal of microplastics is one of the most important task in the modern society because the microplastics not only adversely affect the natural environment and ecosystem, but also have internal inflammatory and carcinogenic effects on the human body. Therefore, there is an urgent need to develop a method for recovering microplastics dissolved in aquatic ecosystems. Herein, polyvinyl alcohol (PVA) and polyoxomethylene (POM) microplastics dissolved in Tancheon, Seongnam were recovered by density screening using NaCl, an eco-friendly method. The density of the experimental aqueous NaCl solution was adjusted to 1.2 g/cm3. Pulverized PVA and POM was used for experiments, and the floatability was measured by comparing the initial input amount and the recovered amount. The floatability of microplastics was compared by changing the temperature and pH. The experimental results showed that the floatability of PVA increased as the temperature increased or the solvent was acidic or basic. On the other hand, the floatability of POM is high at low temperature or neutral pH condition.

Keywords

Acknowledgement

이 논문은 대한민국 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원을 받아 수행되었음(NRF-2021R1C1C1014339).

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