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Solid-Liquid Separation Characteristics with Bio-filter Media Reactor
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  • Journal title : Journal of Wetlands Research
  • Volume 16, Issue 3,  2014, pp.347-353
  • Publisher : Korean Wetlands Society
  • DOI : 10.17663/JWR.2014.16.3.347
 Title & Authors
Solid-Liquid Separation Characteristics with Bio-filter Media Reactor
Park, Young Bae; Jung, Yong Jun;
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This work was performed to find the effect of operation parameters on the permeate flux through the activated sludge dynamic layer, and to indicate the relationship between the water quality of supernatant and flux based on the results. Since the effluent can be obtained through steady and stable formation of cake layer in the bio-filter media system, it is an important subject to keep and control microbes with activated state in the bio-reactor. Filtration resistance was drastically increased at more than 18000mg/L of MLSS. With filtration time continued, the flux was gradually decreased and the water qualities of supernatant monitored by turbidity and TOC were also deteriorated. This phenomenon indicated that the organic materials generated by microbes and accumulated in the reactor might affect the flux in the system. In addition, the decrease of flux was simultaneously observed in the sludge volume index. When SVI was controlled from 150 to 250, the flux was also decreased. The proper aeration time was recommended to 30 to 60 seconds in this system. In order to operate this system steadily, therefore, the control of water quality of supernatant and SVI should be proceeded.
Filter media;flux;solid-liquid separation;SVI;supernatant;
 Cited by
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