Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Manufacturing and Characterization of TiO2 From Sludge (TFS) Photocatalyst Using Sewage Treatment Sludge

하수처리 슬러지를 활용한 TiO2 From Sludge (TFS) 광촉매 제조 및 특성 분석

  • Chan Sol Kang (Department of Advanced Materials Engineering, Shinhan University) ;
  • Wooseok Yeo (Department of Smart Civil, Environmental and Urban Engineering, Shinhan University) ;
  • Byeong Chan Na (Department of Smart Civil, Environmental and Urban Engineering, Shinhan University) ;
  • Ho-jin Chung (Department of Civil Engineering, Keimyung University) ;
  • HoJong Chang (KAIST Institute for Information Technology Convergence Intergrated Sensor Team, KAIST) ;
  • Jong Kyu Kim (Department of Energy Engineering, Shinhan University)
  • 강찬솔 (신한대학교 첨단소재공학과) ;
  • 여우석 (신한대학교 스마트토목환경도시공학전공) ;
  • 나병찬 (신한대학교 스마트토목환경도시공학전공) ;
  • 정호진 (계명대학교 토목공학과) ;
  • 장호종 (KAIST IT 융합연구소 융합센서팀) ;
  • 김종규 (신한대학교 에너지공학과)
  • Received : 2023.03.14
  • Accepted : 2023.04.21
  • Published : 2023.04.30
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Abstract

In this study, TFS was manufactured using sewage sludge generated by applying TiCl4 to a total phosphorus treatment facility. Physical and chemical characteristics of TFS were analyzed to determine whether the manufactured TFS was successfully manufactured as TiO2 photocatalyst. As a result of operating, the total phosphorus treatment facility by applying TiCl4 as a flocculent, the total phosphorus concentration in the sewage was reduced from 0.3 mg/l to 0.03 mg/l, recording a over 90% total phosphorus reduction efficiency. In the physical analysis, the crystal structure of the TFS observed an anatase crystal structure. The element composition ratio of TFS is 84.05%, so it is determined that TFS can be used in place of TiO2. The average particle size of TFS is 12.5 ㎛ and the BET is 40.8 m2/g, which is not significantly different from the existing TiO2, P-25. In the NO reduction experiment, which is the cause of fine dust, conducted to determine TFS photocatalytic ability, there is no significant difference in NO reduction efficiency from the existing widely used TiO2, P-25. Therefore, TFS can reduce the amount of carbon dioxide generated by making sludge generated in total phosphorus treatment facilities eco-friendly resources, which can contribute to realizing carbon neutrality. In addition, TFS is considered an eco-friendly material that is excellent economically and environmentally because it can efficiently reduce NO, which is the cause of fine dust.

Keywords

Acknowledgement

본 논문은 2022년도 경기도형 연구자 중심의 R&D지원사업(2022-007, 2022년)으로 연구되었으며, 당 기관의 연구비 지원에 감사드립니다.

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