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KMID : 1024519970060010017
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Journal of the Environmental Sciences
1997 Volume.6 No. 1 p.17 ~ p.24
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Hydraulic Shock of Apartment Sewage in Inverse Fluidized Bed Biofilm Reactor
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Park Young-Seek
Na Young-Soo
Suh Jung-Ho
Ahn Kab-Hwan
Song Seung-Koo
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Abstract
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The objective of this study was to examine the transient response to hydraulic shocks in an Inverse fluidized bed bioflm reactor(IFBBR) for the treatment of apartment sewage. The hydraulic shock experiments, when the system were reached at steady state with each HRT 12, 7, and 4hr, were conducted by chancing twice HRT per day during 3days. The SCOD, SS, DO, and pH of the effluent stream were increased with hydraulic shock, but easily recovered to the steady state of pre-hydraulic shock condition. In spite of hydraulic shock, there were not much variation of biomass concentration, biofilm thickness and biofilm dry density.
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KEYWORD
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hydraulic shock, inverse fluidized bed biofilm reactor, sewage
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