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DOI : 10.17640/KSWST.2015.23.5.59 ,    Vol.23, No.5, 59 ~ 67, 2015
Title
Kinetic Analysis of Biofiltration Headloss Development Considering Sludge Characteristics in BAF Bed
현길수 Kil Soo Hyun
Abstract
The objective of this study was to establish a kinetic of biofiltration headloss development in biofilm aerated filter (BAF) bed considered a sludge characteristics based on the theory of headloss build-up in the sand filter bed. A kinetic analysis of biofiltration headloss development was based on the theory of sand filtration headloss proposed by Kozeny-Carman. As a result, the substrate removal of the BAF bed at steady state showed an exponential decrease trends with increasing filtration time. A modified biofiltration headloss equation introduced a specific deposit including air bubble and solids such as particle and biomass including suspended solids and soluble microbial products (SMPs) and a corrected coefficient of headloss into the sand filtration equation proved to be applied for the kinetic analysis of biofiltration headloss development in the BAF bed.
Key Words
Headloss development, Biofiltration, biofilm aerated filter, sludge characteristics, specific deposit, corrected coefficient of headloss
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