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KMID : 0380619930250010069
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Korean Journal of Food Science and Technology
1993 Volume.25 No. 1 p.69 ~ p.77
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The Treatment of Industrial Wastewater by the Fluidized - Bed Biofilm Reactor
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Abstract
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Substrate removal efficiency of industrial wastewater from dye plant was investigated with fluidized bed biofilm reactor(FBBR). Wastewater was diluted by 2, 3 and 6 times for experiment. When F/M ratio was increased 0.2 to 0.3, substrate removal efficiency of wastewater was rapidly decreased in all dilution ratio. Substrate removal efficiency was increased with dilution ratio in same F/M ratio, with hydraulic retention time. In case of 6 times diluted wastewater, below 0.2 F/M ratio, removal efficiency of BOD was 90∼97%. For reactor design, the parameters such as as Y. k_d and r was obtained as follows:
Y=0.3365 kd=0.03782 day^(-r)=0.997 in 2 times diluted
Y=0.3341 kd=0.02750 day^(-r)=0.996 in 3 times diluted
Y=0.5460 ka=0.03434 day^(-r)=0.998 in 6 times diluted
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KEYWORD
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