Efficiency Verification of Small-Scale Sewage Treatment Plant Using Discussed Vinyl as Biofilm Media

폐비닐 재활용 여재를 이용한 소규모 오수종말처리장의 효율검증

  • 임재명 (강원대학교 환경.생물공학과) ;
  • 김병욱 (강원대학교 대학원 환경.생물공학과) ;
  • 구본수 (강원대학교 대학원 토목공학과)
  • Published : 1998.12.31

Abstract

This study was conducted to use disused vinyl as biofilm for biological sewage treatment. Efficiency verification was performed on laboratory and on-site plant. In laboratory study, total biochemical oxygen demand(TBOD) removal rate was ranged 94.8~97 % in each hydraulic retention tim(HRT), 12, 16, 20, 24 hr, respectively. At that time, filling rate was 50 %. And effluent TBOD concentration was low ranged 3.64~6.28 mg/L. In on-site plant, TBOD removal rate was ranged 88.2~96.8 % and effluent TBOD concentration was 4.8~17.7mg/L. This concentration was lower than disign effluent concentration, 30mg/L. Total kjeldhal nitrogen(TKN) removal efficiency was ranged 56.8~90.9%. This was resulted higher than Lab. scale treatment efficiency.

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