Methane Production from the Mixture of Paperboard Sludge and Sewage Sludge in an Anaerobic Treatment Process

판지슬러지와 하수슬러지를 이용한 혐기성 처리 공정에서 메탄 생산

  • Choi, Suk Soon (Department of Biological and Environmental Engineering, Semyung University) ;
  • Lee, Hyun Min (Department of Biological and Environmental Engineering, Semyung University) ;
  • Jeong, Tae-Young (Division of Environmental Engineering, Yonsei University) ;
  • Yeom, Sung Ho (Department of Biochemical Engineering, Gangneung-Wonju National University)
  • 최석순 (세명대학교 바이오환경공학과) ;
  • 이현민 (세명대학교 바이오환경공학과) ;
  • 정태영 (연세대학교 환경공학부) ;
  • 염승호 (강릉원주대학교 생명화학공학과)
  • Published : 2012.04.10

Abstract

In this work, the mixture of sewage sludge incubated in an anaerobic bioreactor for 35 days and paperboard sludge was treated in a batch anaerobic digester equipped with a ultrasonicator, and methane production during the treatment was investigated. The Soluble Chemical Oxygen Demand (SCOD) increased with increasing the amplitude of ultrasonicator, which help solubilizing paperboard sludge more effectively. The optimum amplitude of ultrasonicator for the enhancing methane productivity was found to be $142.5\;{\mu}m$ and the methane production amount increased as the anaerobic digestion period became longer. In addition, the anaerobic digestion was performed with various biomass (6000, 9000 and 12000 mg/L) and methane production increased with higher cell mass. These results will be used as valuable data to enhance the methane production from anaerobic digestion of the high concentration of organic wastes containing the paperboard sludge and sewage sludge.

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