Hydrodynamics in Three-Phase Stirred Tank Reactors with Non-Newtonian Fluids

1997 ◽  
Vol 36 (1) ◽  
pp. 270-276 ◽  
Author(s):  
Yoshinori Kawase ◽  
Kazuhiro Shimizu ◽  
Takae Araki ◽  
Tatsuya Shimodaira
Keyword(s):  
Newtonian Fluids ◽  
Stirred Tank ◽  
Stirred Tank Reactors ◽  
Three Phase

Oxygen transfer in three-phase airlift and stirred tank reactors using silicone oil as transfer vector

2009 ◽  
Vol 44 (6) ◽  
pp. 619-624 ◽  
Author(s):  
Guillermo Quijano ◽  
Sergio Revah ◽  
Mariano Gutiérrez-Rojas ◽  
Luis B. Flores-Cotera ◽  
Frédéric Thalasso
Keyword(s):  
Oxygen Transfer ◽  
Silicone Oil ◽  
Stirred Tank ◽  
Transfer Vector ◽  
Stirred Tank Reactors ◽  
Three Phase

Gas-liauid mass transfer in three-phase stirred tank reagors: Newtonian and non-newtonian fluids

1997 ◽  
Vol 75 (6) ◽  
pp. 1159-1164 ◽  
Author(s):  
Yoshlnori Rawase ◽  
Takae Araki ◽  
Kazuhiro Shimzu ◽  
Hideki Miura
Keyword(s):  
Mass Transfer ◽  
Newtonian Fluids ◽  
Stirred Tank ◽  
Three Phase

Suspension of solid particles in multi-impeller three-phase stirred tank reactors

2001 ◽  
Vol 79 (1) ◽  
pp. 107-111 ◽  
Author(s):  
Naoki Dohi ◽  
Yukimasa Matsuda ◽  
Norihiro Itano ◽  
Kimio Minekawa ◽  
Takanori Takahashi ◽  
...  
Keyword(s):  
Solid Particles ◽  
Stirred Tank ◽  
Stirred Tank Reactors ◽  
Three Phase

Particle−Liquid Mass Transfer Coefficient in Two-/Three-Phase Stirred Tank Reactors

2002 ◽  
Vol 41 (17) ◽  
pp. 4141-4167 ◽  
Author(s):  
V. G. Pangarkar ◽  
A. A. Yawalkar ◽  
M. M. Sharma ◽  
A. A. C. M. Beenackers
Keyword(s):  
Mass Transfer ◽  
Transfer Coefficient ◽  
Mass Transfer Coefficient ◽  
Stirred Tank ◽  
Stirred Tank Reactors ◽  
Liquid Mass ◽  
Three Phase ◽  
Liquid Mass Transfer

Removal of lead by sulfate-reducing bacteria in anaerobic continuous stirred tank reactors

2016 ◽  
Vol 14 (3) ◽  
pp. 557-561
Author(s):  
Nguyễn Thị Yên ◽  
Kiều Thị Quỳnh Hoa
Keyword(s):  
Sulfate Reducing Bacteria ◽  
Stirred Tank ◽  
Synthetic Wastewater ◽  
Terminal Electron Acceptor ◽  
Stirred Tank Reactors ◽  
Sulfate Reducing ◽  
Sulfide Production ◽  
Continuous Stirred Tank ◽  
Continuous Stirred Tank Reactors ◽  
Reducing Bacteria

Lead contaminated wastewater negatively impacts to living organisms as well as humans. In recent years, a highly promising biological process using the anaerobic production of sulfide ions by sulfate-reducing bacteria has presented itself as an alternative option for the removal of lead. This process is based on microbial utilization of electron donors, such as organic compounds (carbon sources), and sulfate as the terminal electron acceptor for sulfide production. The biogenic hydrogen sulfide reacts with dissolved heavy metals to form insoluble metal sulfide precipitates Removal of lead by an enriched consortium of sulfate-reducing bacteria (DM10) was evaluated sulfate reduction, sulfide production and lead precipitation. Four parallel anaerobic continuous stirred tank reactors (CSTR, V = 2L) (referred as R1 - R4) were fed with synthetic wastewater containing Pb2+ in the concentrations of 0, 100, 150 and 200 mg L-1 of lead and operated with a hydraulic retention time of 5 days for 40 days. The loading rates of each metal in R1- R4 were 0, 20, 30 and 40 mg L-1 d-1, respectively. The results showed that there was no inhibition of SRB growth and that lead removal efficiencies of 99-100% for Pb2+ were achieved in R2 (100 mg L-1) and R3 (150 mg L-1) throughout the experiment. For the highest lead concentration of  200 mg L-1, a decrease in efficiency of removal (from 100 to 96%) was observed at the end of the experiment. The obtained result of this study might help for a better control operation and performance improvements of reactors.

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