환경위생공학 (Journal of environmental and Sanitary engineering)

대한환경위생공학회 (Korean Society for Environmental Sanitary Engineers)
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Pilot Scale 생물활성탄 여과공정을 이용한 상수의 고도처리

Advanced water treatment in pilot scale BAC-sand filter

  • 발행 : 2002.12.01
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초록

This study was carried out to examine the characteristics of dual media filter with BAC and sand on a pilot scale which was installed in T Water Treatment Plant of Seoul. The conclusions drawn from experimental results are as follows : For the BAC-Sand filter, the preceded gravity sand filter did not largely affect the removal of organics and turbidity causing matters, tut the frequency of backwashing was explicitly reduced to two times with the stable growth of microorganisms. The biomass on media in case of existence of preceded sand filter was 1.4 times higher than that of nonexistence. In case of backwashing with water, the time needed to comply with below 10NTU took 22, 10, and 5 minutes respectively with the expansion ration of 1.2, 1.5 and 1.8. The higher the expansion ration was, the shorter the backwashing time was.

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참고문헌

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