Radiation Sterilization Dose of Biowastes

방사선을 이용한 생물폐자원의 멸균선량 결정

  • Lee, Young-Keun (RI and radiation application team, Korea Atomic Energy Research Institute) ;
  • Chang, Hwa-Hyoung (RI and radiation application team, Korea Atomic Energy Research Institute) ;
  • Han, Gab-Jin (RI and radiation application team, Korea Atomic Energy Research Institute) ;
  • Kim, Jin-Kyu (RI and radiation application team, Korea Atomic Energy Research Institute) ;
  • Kim, Jae-Sung (RI and radiation application team, Korea Atomic Energy Research Institute)
  • 이영근 (한국원자력 연구소 방사성동위원소/방사선응용연구팀) ;
  • 장화형 (한국원자력 연구소 방사성동위원소/방사선응용연구팀) ;
  • 한갑진 (한국원자력 연구소 방사성동위원소/방사선응용연구팀) ;
  • 김진규 (한국원자력 연구소 방사성동위원소/방사선응용연구팀) ;
  • 김재성 (한국원자력 연구소 방사성동위원소/방사선응용연구팀)
  • Published : 1998.12.30

Abstract

In order to determine the optimal radiation dose for the sterilization of biowastes, the bioburden, frequencies and radiosensitivities of bacteria, mold and fungi in rice straw, chaff, corn stover and sawdust was observed before and after ${\gamma}-ray$ irradiation. Radiation sterilization dose of rice straw, chaff, com stover and sawdust was calculated as 17.7, 17.6, 15.6 and 20.0kGy, respectively, from the mutual compensation of screening dose and derived dose on the basis of $10^{-3}$ SAL. This method could be acceptable for the sterilization of various biowastes including food, pharmaceuticals, etc.

Keywords