The Reclamation of Secondary Effluent to Industrial Water by Co-60 γ Irradiation

Co-60 γ선을 이용한 하수처리수의 공업용수로의 재이용

  • Received : 1998.12.07
  • Accepted : 1999.08.06
  • Published : 1999.10.10

Abstract

In order to reclaim the effluent discharged from sewage treatment facilities application of an irradiation technique was investigated in this study for industrial water reuse. Samples were filtered using a sand filter to remove particles. Co-60 was used as an irradiation source and the irradiation dose was varied from 0.1 kGy to 15 kGy. The major source of colour in secondary treatment effluent was humic substances, which could be easily removed by irradiation with a dose 5 kGy. Bacteria could be also disinfected even at low doses. It was possible to get high quality water for industrial water reuse. But the effluent still contained a small amount of organic compounds. Further treatment, of residual organic compounds will be necessry if the higher quality water is required.

Keywords

industrial water;irradiation;${\gamma}$-ray

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