Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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Manufacture of Sterilizing Media with Shell Powder and It's Application to the Filter of Water Clarifier

패각분말을 이용한 살균성 메디아의 제조 및 정수기용 필터에 대한 응용

  • Shin, Choon-Hwan (Department of Environmental Engineering, Dongseo University)
  • 신춘환 (동서대학교 환경공학과)
  • Published : 2006.11.30
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Abstract

Antimicrobial powder was made by exchanging silver ion on calcined oyster shell. On the purpose of application to water clarifier, bail-type media mixed with antimicrobial powder and $0{\sim}30%$ white kaoline were made. The sterilization effect, pore size distribution and zeta potential was tested to indicate the condition for the media of water clarifier. From these tests, it was confirmed that this media have an excellent sterilization power on $G^-\;and\;G^+$ germs. As the concentration of the exchanged silver ion increased, the surface charge density of the anions on the surface of the media also increased. The surface pore size decreased with the concentration of silver ion and 20% more white kaoline ratio. Consequently, mixing ratio of white kaoline would appear to indicate the optimun condition as media have sterilization power.

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