PAC Pretreatment for Ultrafiltration of RBC Effluent

PAC-한외여과막을 이용한 회전원판 처리수의 고도처리

  • 안규홍 (한국과학기술연구원 환경연구센터) ;
  • 송경근 (한국과학기술연구원 환경연구센터) ;
  • 박준홍 (한국과학기술연구원 환경연구센터) ;
  • 권지향 (한국과학기술연구원 환경연구센터) ;
  • 김형수 (성균관대학교 토목공학과) ;
  • 곽종운 (경기화학(주) 수처리연구실)
  • Published : 1996.03.15

Abstract

Ultrafiltration(UF) and powdered activated carbon(PAC) adsorption were combined to treat wastewater contaminated with refractory organic compounds. Secondary sewage effluent of RBC process was used for the investigation. It was determined from batch test results that a contact time of 2 hours and a PAC dose of 450mg/l would be used in the experiments. Backwashing was accomplished by forcing the permeates back ward with pressure of $2.5kgf/m^2$ for 90 seconds. It was shown that refractory organics removal by the PAC-UF process was more efficient than UF process without PAC pretreatments. As backwashing frequency was decreased from four times to one time in an hour, the removal efficiency was significantly increased. The addition of PAC to the UF process mitigated the fluctuation of filtrate quality which was increased in UF process without PAC treatment as transmembrane pressure was increased.

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Acknowledgement

Supported by : 환경부