scholarly journals Special issue : fifth symposium on biofilm process research.Model drainage for coke oven by three-phase fluidized-bed type biofilm process.

1991 ◽  
Vol 20 (3) ◽  
pp. 183-192 ◽  
Author(s):  
Akira HIRATA ◽  
Chiaki TAKAHASHI ◽  
Manabu ARAI
Keyword(s):  
Fluidized Bed ◽  
Coke Oven ◽  
Special Issue ◽  
Three Phase ◽  
Biofilm Process

Kinetics of biological treatment of phenolic wastewater in three-phase fluidized bed containing biofilm and suspended sludge

1998 ◽  
Vol 38 (8-9) ◽  
pp. 205-212 ◽  
Author(s):  
A. Hirata ◽  
M. Noguchi ◽  
N. Takeuchi ◽  
S. Tsuneda
Keyword(s):  
Fluidized Bed ◽  
Surface Area ◽  
Phenol Removal ◽  
Removal Rates ◽  
Biological Removal ◽  
Three Phase ◽  
Zero Order Reaction ◽  
Phenolic Wastewater ◽  
Biofilm Process ◽  
Kinetics Of

Phenolic wastewater was treated in complete mixing type three-phase fluidized bed which contained both biofilm and suspended sludge. By considering the contributions of biofilm and suspended sludge to biodegradation of phenol separately, phenol removal rates with biofilm and with suspended sludge were evaluated both theoretically and experimentally. As a result, biodegradation of phenolic wastewater by biofilm process could be treated as a zero-order reaction. The volumetric biological removal rates with biofilm was proportional to the specific surface area of the biofilm with biodegradation coefficients (K) of 1.25×10−2 kg-PhOH/m2-biofilm/d. At a lower suspended sludge concentration, bioparticle diameter and bioparticle hold-up in the three-phase fluidized bed reactor were decisive factors for the efficiency of phenol treatment, and it was also proved that almost 100 % of phenol removal could be attained at a larger specific biofilm surface area per volumetric phenol loading rate than 80 m2/(kg-PhOH/d) without suspended sludge.

Global modeling and simulation of a three-phase fluidized bed bioreactor

2009 ◽  
Vol 33 (1) ◽  
pp. 359-370 ◽  
Author(s):  
Mauren Fuentes ◽  
Miguel C. Mussati ◽  
Nicolás J. Scenna ◽  
Pío A. Aguirre
Keyword(s):  
Modeling And Simulation ◽  
Fluidized Bed ◽  
Global Modeling ◽  
Fluidized Bed Bioreactor ◽  
Three Phase

Effect of tapered angle on hydrodynamics of homogenous ternary mixture of regular particles in a three-phase tapered fluidized bed

2018 ◽  
Vol 61 (3) ◽  
pp. 269-285 ◽  
Author(s):  
R. K. Padhi ◽  
D. T. K. Dora ◽  
Y. K. Mohanty ◽  
G. K. Roy ◽  
B. Sarangi
Keyword(s):  
Fluidized Bed ◽  
Ternary Mixture ◽  
Three Phase ◽  
Tapered Angle

Study of Biofilm and Fluidization of Bioparticles in a Three-Phase Liquid-Fluidized-Bed Reactor

1991 ◽  
Vol 23 (7-9) ◽  
pp. 1347-1354 ◽  
Author(s):  
F. Trinet ◽  
R. Heim ◽  
D. Amar ◽  
H. T. Chang ◽  
B. E. Rittmann
Keyword(s):  
Fluidized Bed ◽  
Liquid Velocity ◽  
Substrate Surface ◽  
Biofilm Reactor ◽  
Strongly Correlated ◽  
Polysaccharide Content ◽  
High Particle ◽  
Air Turbulence ◽  
Three Phase ◽  
Phase Liquid

A three-phase, liquid-fluidized-bed biofilm reactor was operated over wide ranges of liquid velocity, air velocity, medium concentration, and substrate surface loading. The biofilm characteristics (total colonization, polysaccharide content, density, and thickness) and the specific detachment coefficient (bs) were determined by a combination of experimental measurements and a hydrodynamic model. The results demonstrated that dense and thin biofilms were induced by the physical condition of high particle-to-particle contacts and high liquid turbulence. The biofilm's polysaccharide content was increased by increased air turbulence and a low substrate availability. The specific detachment coefficient, bs, was strongly correlated to the concentration of the medium (negatively) and the polysaccharide content (positively). Overall, the bs can be controlled significantly by the gas and liquid velocities; increasing either velocity tends to increase bs.

Hydrodynamic characteristics of bubble-induced three-phase inverse fluidized bed (BIFB)

2019 ◽  
Vol 209 ◽  
pp. 115177 ◽  
Author(s):  
Keying Ma ◽  
Xiliang Sun ◽  
Yuanyuan Shao ◽  
Mingyan Liu ◽  
Jesse Zhu
Keyword(s):  
Fluidized Bed ◽  
Hydrodynamic Characteristics ◽  
Three Phase ◽  
Inverse Fluidized Bed
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