Multiphase Bioreactor Design

Figure 10.4 Graphic representation of the Monod type reaction rate model and its two limiting cases (first order and zero order) ...

(17) and is the Thiele modulus for a first order reaction for a flat plate: (18) The Thiele modulus represents the ratio between ...

the biofilm (y+=y/Lf) for a flat biofilm with first order kinetics at several values of the Thiele modulus (ø) and efficiency fa ...

(28) Here, β corresponds to the biofilm internal efficiency (ηi) for a flat plate geometry and zero order reaction. bi) If the s ...

Figure 10.6 Dimensionless concentration as a function of the dimensionless distance inside the biofilm (y + =y/Lf) for a flat bi ...

identify the limiting substrate (substance), that is, the first one to reach zero concentration (that is, to be completely consu ...

Calculation of Reactor Volume Let Q be the volumetric flow rate of the liquid through the system, S 1 the inlet substrate concen ...

(39) ii) Zero order reaction with full substrate penetration (β>1) and no external mass transfer limitations: (40) iii) Zero ...

parameters by fitting the model to experimental data on substrate consumption rates in laboratory or larger scale reactors. Most ...

Anoxic, denitrifying biomass Methanol Rotating drum 0.10–0.20 Jansen and Kristensen (1980) Jansen (1982) Anoxic, denitrifying bi ...

Diffusing component Diffusion coefficient×10^9 (m^2 /s) Df (biofilm)/ /Df (water) (%) References Oxygen 2.2 (20°C) 105% Kissel e ...

For practical design purposes, empirical equations are still the most common method to calculate biofilm reactors in wastewater ...

Md—“biofilm detachment flux” (decrease in biofilm mass per unit time and per unit surface area, associated to the detachment of ...

ii) Thin biofilm, completely penetrated by the substrate In this case, the biofilm is biologically active (as regards the main s ...

(56) By experimentally monitoring the growth curves of biofilms produced by a given microbial culture under different operating ...

b reciprocal of the resistance to detachment Bi Biot number C 1 substrate concentration at reactor inlet, as soluble BOD 5 (mg.L ...

Scrit critical substrate concentration (kg.m−^3 ) Sf substrate concentration inside the biofilm (kg.m−^3 ) dimensionless concent ...

REFERENCES Alphenaar, P.A., Perez, C. and Lettinga, C. (1993) The influence of substrate transport on porosity and methanogenic ...

Fan, L.-S., Leyva-Ramos, R., Wisecarver, K.D. and Zehner, B.J. (1990) Diffusion of phenol through a biofilm grown on activated c ...

Karamanev, D.G. and Nikolov, L.N. (1992) Bed expansion of liquid-solid inverse fluidization. A1ChE Journal, 38 (12), 1916–1922. ...