Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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Effect of powder activated carbon replacement on HCPAC-MBR system operation

고농도 분말활성탄 결합 MBR 운전에 대한 활성탄 교체주기의 영향

  • 이채하 (창원대학교 환경공학과) ;
  • 김진태 (창원대학교 환경공학과) ;
  • 이정현 (창원대학교 환경공학과) ;
  • 서규태 (창원대학교 환경공학과) ;
  • 김인수 (광주과학기술원 환경공학과)
  • Received : 2007.10.30
  • Accepted : 2008.02.13
  • Published : 2008.02.15
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Abstract

This study was conducted to evaluate the effect of PAC(Powder Activated Carbon) retention time on stable operation of high concentration powered activated carbon(HCPAC-MBR) in the treatment of secondary domestic wastewater. The pilot scale HCPAC-MBR system was operated at two different SRTs, 25 days and 100 days. The main drawback of HCPAC-MBR system was the rapid increase of trans-membrane pressure. The increase rate of trans-membrane pressure was proportional to SRT value at constant flux. This result seemed to be caused by reduced amount of EPS adsorbed on the PAC in the reactor by decreasing the SRT of the PAC. The particle size of the PAC was also influenced by SRT. The PAC size was decreased as SRT was increased. The change of particle size could be one reason for the change of trans-membrane pressure. The pore volume in the cake-layer formed on the membrane surface became to be increased by reducing SRT, because the cake-layer was highly composed of the PAC. Therefore, increased pore volume might play a role to reduce the trans-membrane pressure. The removal rate of E260 and TOC was also inversely proportional to SRT value.

Keywords

Acknowledgement

Supported by : 수자원의 지속적 확보 기술개발사업단

References

  1. 이송희, 장성우, 서규태 (2006) 고도정수처리를 위한 HCPAC-MBR공정에서의 소독부산물 저감에 관한 연구, 상하수도학회지, 20(1), pp.37-34
  2. 이윤정(2005), A study on the cake layer resistance of membrane surface in HCPAC-MBR process, 창원대학교 석사학위논문
  3. 이탄우, 유태일, 조경철, 이형술 (2003) Zeolite를 첨가한 질산화 탈질 공정에서 HRT가 슬러지 및 처리수의 EPS 성상에 미치는 영향, 대한환경공학회 2003추계학술 연구발표회, pp. 343-350
  4. 임중근, 강민수, 강임석 (2005) 유기염소화합물로 오염된 지하수를 처리하기 위한 PAC-막분리 공정의 적용, 대한환경공학회지, 27(8), pp.892-899
  5. 황규대, 강재순, 장준기 (2002) 분말활성탄이 투여된 MBR 공정을 이용한 축산폐수 잔류유기물 제거, 대한환경공학회지, 24(1), pp.1-10
  6. Clark M.M., Baudin I. and Anselme C., (1996) Membrane-powered activated reactors, Water Treatment membrane process, Mallevialle J., Odendaal P.E. and Wiesner M.R
  7. Li, D., and Ganczarczyk, J., (1989) Fractal geometry of particle aggregates generated in water and wastewater treatment process, Envir. Sci. Tech. 23(11), pp. 1385-1389 https://doi.org/10.1021/es00069a009
  8. P.Zhao, S. Takizawa, H. Katayaama and S. Ohgaki (2005) Factors causing PAC cake fouling in PAC-MF water treatment systems, Water Science & Technology, 51(6-7), pp. 231-240