Operation of a three-phase biofilm fluidized sand bed reactor for aerobic wastewater treatment.

@article{Ryhiner1988OperationOA,
  title={Operation of a three-phase biofilm fluidized sand bed reactor for aerobic wastewater treatment.},
  author={G. Ryhiner and S Petrozzi and Irving J. Dunn},
  journal={Biotechnology and bioengineering},
  year={1988},
  volume={32 5},
  pages={677-88}
}
A biofilm fluidized sand bed column reactor (14 L) has been operated in the three-phase mode on a soluble glucose-yeast hydrolysate substrate in which the biofilm-sand phase (1-2.5 L) was suspended by direct aeration of the bed. Within two weeks a tight biofilm was formed whose activity resulted in a 90% reduction, with loads of 10.7 kg TC/m(3)day. The residence time was 1 h. The biofilm remained intact during operation with high residence times (up to 23 h) over three weeks. Oxygen transfer… CONTINUE READING