Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Evaluation of Drinking Water Treatment Efficiency according to Regeneration Temperatures of Granular Activated Carbon (GAC)

입상활성탄 재생온도에 따른 정수처리 효율 평가

  • 김상구 (부산광역시 상수도사업본부 수질연구소) ;
  • 손희종 (부산광역시 상수도사업본부 수질연구소) ;
  • 정종문 (부산광역시 상수도사업본부 수질연구소) ;
  • 류동춘 (부산광역시 상수도사업본부 수질연구소) ;
  • 유평종 (부산광역시 상수도사업본부 수질연구소)
  • Received : 2015.07.20
  • Accepted : 2015.09.09
  • Published : 2015.09.30
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Abstract

This study carried out continuous column test for estimating the regeneration efficiency with regeneration times and temperatures. More times regenerated granular activated carbon (GAC) has more ash in the GAC and has less apparent density. Two times regenerated GAC ($2^{nd}$ re-GAC) could removed the Trihalomethanes (THMs) in the water for the first two week after starting continuous column test, on the other hand five times regenerated GAC ($5^{th}$ re-GAC) did not have adsorption capacity. The THMs concentration in the effluent was almost equal or higher than that of influent at the first time of continuous column test. $2^{nd}$ re-GAC showed much more DOC adsorption capacity than $5^{th}$ re-GAC and the GAC which was regenerated with $700^{\circ}C$ had highest DOC removal efficiency among the GACs with 600, 700, 800, $900^{\circ}C$ regeneration temperatures. It is anticipated the cost of GAC regeneration could be saved more 100 million won by reducing the furnace temperature of 3rd~4th and 5th~6th about $150^{\circ}C$ compared to the current regeneration condition.

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References

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