Journal of Korean Society of Environmental Engineers (대한환경공학회지)

Korean Society of Environmental Engineers (대한환경공학회)
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Production of Polyhydroxyalkanoates (PHAs) from Sequencing Batch Reactor Using Synthetic Wastewater

연속회분식 처리시스템에서 인공하수를 이용한 Polyhydroxyalkanoates (PHAs)의 생산

  • Son, Jae-hyup (Department of Civil and Environmental Engineering, University of Ulsan) ;
  • Cha, Sang-Hyeop (Department of Civil and Environmental Engineering, University of Ulsan) ;
  • Park, Jun-mo (Department of Civil and Environmental Engineering, University of Ulsan) ;
  • Park, Hung-suck (Department of Civil and Environmental Engineering, University of Ulsan)
  • 손재협 (울산대학교 건설환경공학부) ;
  • 차상협 (울산대학교 건설환경공학부) ;
  • 박준모 (울산대학교 건설환경공학부) ;
  • 박흥석 (울산대학교 건설환경공학부)
  • Received : 2015.02.25
  • Accepted : 2015.06.30
  • Published : 2015.06.30
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Abstract

The production of polyhydroxyalkanoates (PHAs) using Sequencing Batch Reactor (SBR) was investigated. The experiments were performed in two fabricated SBRs (4 L) of different oxidation state. Synthetic wastewater was used as substrate, using C/N/P ratio of 42:10:1. SBR 1 and SBR 2 were operated in aerobic dynamic feeding (ADF) and anaerobic/oxic dynamic feeding (AODF) condition, respectively. ADF provide feast and famine in aerobic condition, while AODF in anaerobic/oxic condition. PHAs production was found high in AODF than AOF. Maximum PHAs content of 40.0% (w/w)of biomass were produced in AODF mode. Produced PHAs structural and thermal property were good.

인공폐수로 연속회분식 하수처리시스템에서 바이오플라스틱인 PHAs의 생산에 대하여 연구하였다. 실험은 하수처리장에서 식종슬러지를 채취하고, 실험실 내에서 제작된 인공하수를 이용하여 4 L 규모의 2조의 연속회분식반응기로 수행하였다. 인공하수의 영양조건(C/N/P)은 42:10:1로 운전되었으며, 연속회분식반응기는 호기상태에서 Feast/Famine 조건을 부여하는 ADF (aerobic dynamic feeding)의 SBR 1과 혐기/호기조건에서 Feast/Famine 조건을 부여하는 AODF (anaerobic/oxic dynamic feeding)의 SBR 2로 운전하였다. PHAs의 생산은 AODF가 ADF 보다 우수하였으며, ADOF 에서 바이오매스 대비 최대 40.0%(w/w)로 높게 생산되었으며, 구조적 및 열적 물성도 우수한 것으로 나타났다.

Keywords

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