Journal of the Korean institute of surface engineering (한국표면공학회지)

The Korean Institute of Surface Engineering (한국표면공학회)
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A Study on the Pretreatment of the Spent Coffee Grounds using Electrocoagulation and Its Filter Characteristics

전기 응고법을 이용한 커피박의 전처리 및 기능성 필터 특성 연구

  • Park, Soobin (Department of Materials Science and Chemical Engineering, Hanyang University) ;
  • Han, Haneul (Department of Materials Science and Chemical Engineering, Hanyang University) ;
  • Park, Haneul (Department of Materials Science and Chemical Engineering, Hanyang University) ;
  • Lim, Seunghyun (Department of Materials Science and Chemical Engineering, Hanyang University) ;
  • Yoo, Bongyoung (Department of Materials Science and Chemical Engineering, Hanyang University) ;
  • Yoon, Sanghwa (Department of Materials Science and Chemical Engineering, Hanyang University)
  • 박수빈 (한양대학교 재료화학공학과) ;
  • 한하늘 (한양대학교 재료화학공학과) ;
  • 박하늘 (한양대학교 재료화학공학과) ;
  • 임승현 (한양대학교 재료화학공학과) ;
  • 유봉영 (한양대학교 재료화학공학과) ;
  • 윤상화 (한양대학교 재료화학공학과)
  • Received : 2021.08.26
  • Accepted : 2021.08.30
  • Published : 2021.08.31
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Abstract

As coffee consumption per person increases annually to 323 cups in 2018, treating the spent coffee ground has arisen because spent coffee ground results in soil and air pollution. The demands of air purification filters are increasing more and more because the air pollution due to the fine dust has become worse. The spent coffee grounds had a porous structure, however, the pore was blocked by organic oil compounds. Electrocoagulation, which is one of the electrochemical methods, has the potential to remove the organic compounds. The surface area of spent coffee grounds increased effectively after the electrocoagulation treatment, and surface morphology and surface area were confirmed using SEM and BET, respectively. Using the FT-IR, both the spent coffee grounds and the electrocoagulated spent coffee grounds were characterized. The filter characteristics were examined by the adsorption test using formaldehyde, one of the air pollutants.

Keywords

Acknowledgement

This research was supported by the National Research Foundation of Korea(NRF)(No. NRF-2020R1A2C2009462). Also this research was supported by Basic Science Research Program through the National Research Foundation of Korea(NRF) funded by the Ministry of Science, ICT & Future Planning(No. 2015R1A5A1037548)

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