V. Ravindran et al., PREDICTIVE MODELING FOR BIOACTIVE FLUIDIZED-BED AND STATIONARY BED REACTORS - APPLICATION TO DAIRY WASTE-WATER, Environmental technology, 18(9), 1997, pp. 861-881
Bioadsorber models were formulated, and a systematic protocol was deve
loped for adsorber modeling and design. These models were used for for
ecasting the performance of bioactive and non bioactive reactors in tw
o configurations: fluidized bed reactor (with effluent recycle), and s
tationary bed reactor. The models incorporated important phenomena ass
ociated with adsorption and biofilm degradation, and used total organi
c carbon (TOC) as a lumped parameter for measuring the wastewater stre
ngth. The protocol could be easily applied to bioactive reactors with
non-adsorbing media such as sand, polymers and glass. The protocol inc
luded the development of experimental techniques for evaluating model
parameters. Laboratory-scale adsorption equilibrium and rate studies w
ere conducted to evaluate the equilibrium and mass-transfer parameters
, respectively. Biokinetic experiments were performed to determine the
biodegradation parameters including kinetic coefficients for biologic
al growth and decay, and the yield coefficient. Adsorption and biodegr
adation parameters were subsequently used as model inputs for predicti
ng the dynamics of bioactive reactors. Laboratory-scale adsorber colum
n studies for model verification indicated the good predictive capabil
ity of the models for bioactive and non bioactive reactors.