Abstract
The purpose of this study is deterring efficiencies for organic matter degradation from wastewaters using a biological fluidized bed reactor. Additionally, the organic load limits and volume flow rate for the experimental setup were determined. Backfill material is activated coal with a mean diameter of 1 mm filling 38% of the total liquid column in fixed bed condition. The reactor was operated with an effluent volume flow rate between 20 and 300 ml/min and recycles between 1400 and 4800 ml/min. The input organic load varied from 74 to 571 mg/l as COD and degradation efficiency of the order of 89% was obtained. It is observed that the system presents good efficiency of the organic matter oxidation with respect to other systems for biological treatment. However, due to the constant bacterial growth, the system requires adjustment during operation.
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