Hydrodynamics and mass transfer coefficient in activated sludge aerated stirred column reactor: Experimental analysis and modeling

Biotechnology and Bioengineering

Volumn 91, Issue 4, 2005, Pages 406-417

  Jin, Bo ^a,b   Lant, Paul ^b   Ge, Xiangyu ^b  

^a UNIVERSITY OF SOUTH AUSTRALIA   (Australia)

^b UNIVERSITY OF QUEENSLAND   (Australia)

Author keywords

Activated sludge; Aerated stirred column reactor; Flow regime; Gas hold up; Hydrodynamics; Mass transfer coefficient; Superficial gas velocity

Indexed keywords

ACTIVATED SLUDGE PROCESS; HYDRODYNAMICS; LOADING; MASS TRANSFER; NON NEWTONIAN FLOW; SEWAGE SLUDGE;

ACTIVATED SLUDGE STIRRED COLUMN REACTORS (ASCR); AERATED STIRRED REACTORS (ASR); MASS TRANSFER COEFFICIENTS; THEOLOGICAL BEHAVIOR;

CHEMICAL REACTORS;

ACTIVATED SLUDGE; ARTICLE; HYDRODYNAMICS; SHEAR RATE; STIRRED REACTOR; VISCOSITY; WASTE DISPOSAL; WASTE WATER MANAGEMENT;

BIOREACTORS; MODELS, THEORETICAL; RHEOLOGY; SEWAGE; VISCOSITY;

EID: 23244436396     PISSN: 00063592     EISSN: None     Source Type: Journal    
DOI: 10.1002/bit.20516     Document Type: Article

References (30)

1. APHA. 1995. Standard methods for the examination of water and wastewater, 19th edn., Baltimore, MD: American Public Health Association.
2. Arjunwadkar SJ, Sarvavan K, Kulkarni PR, Pandit AB. 1998. Gas-liquid mass transfer in dual impeller bioreactor. Biochem Eng J 1:99-106.
3. La) in batch cultivations involving non-Newtonian broths. Biochem Eng J 8:111-119.
4. Bekassy-Molnar E, Majeed JG, Vatai Gy. 1997. Overall volumetric oxygen transfer coefficient and optimal geometry of airlift tube reactor. Chem Eng. J 68:29-33.
5. Benyahia F, Jones L. 1997. Scale effects on hydrodynamic and mass transfer characteristics of external loop airlift reactors. J Chem Tech Biotechnol 69:301-308.
6. Bouaif M, Roustan M. 1998. Bubble size and mass transfer coefficients in dual-impeller agitated reactors. Canadian J Chem Eng 76:390-397.
7. Bouaifi M, Hebrard G, Bastoul D, Roustan M. 2001. A comparative study of gas hold-up, bubble size, interfacial area and mass transfer coefficients in stirred gas-liquid reactors and bubble columns. Chem Eng Process 40:97-111.
8. Dutta N, Pangarkar VG. 1995. Critical impeller speed for solid suspension in multi-impeller three phase agitated contactors. Canadian J Chem Eng 73:273-283.
9. Elibol M. 1999. Mass transfer characteristics of yeast fermentation broth in the presence of pluronic F-68. Process Biochem 34:557-561.
10. Garcia-Ochoa F, Gomez E. 1998. Mass transfer coefficient in stirred tank reactors for xanthan gum solution. Biochem Eng J 1:1-10.
11. Guo YX, Rathor MN, Ti HC. 1997. Hydrodynamics and mass transfer studies in a novel external-loop airlift reactor. Chem Eng J 67:205-214.
12. Hari-Prajitno D, Mishra V, Takenaka K, Bujalski W, Nienow A, McKemmie J. 1998. Gas-liquid mixing studies with multiple up- and down-pumping hydrofoil impellers: Power characteristics and mixing time. Canadian J Chem Eng 76:1056-1068.
13. Hsu YC, Peng RY, Huang CJ. 1997. Onset of gas induction, power consumption, gas holdup and mass transfer in a new gas-induced reactor. Chem eng Sci 52:3883-3891.
14. Hwang S, Cheng Y. 1997. Gas holdup and liquid velocity in tree-phase internal-loop airlift reactor. Chem Eng Sci 52(21):3949-3960.
15. Jin B, Lant P. 2004. Flow regime, hydrodynamics, floc size distribution and sludge properties in activated sludge bubble column, air-lift and aerated stirred reactors. Chem Eng Sci 59:2379-2388.
16. Jamshidi A, Sohrabi A, Vahabzadeh F, Bonakdarpour B. 2001. Hydrodynamic and mass transfer characterization of a down flow jet loop bioreactor. Biochem Eng J 8:241-250.
17. Jin B, van Leeuwen J, Doelle H, Yu Q. 1999. The Influence of geometry on hydrodynamic and mass transfer characteristics in an external airlift reactor for the cultivation of filamentous fungi. World J Microbiol Biotech 15:73-79.
18. Jin B, Yu Q, van Leeuwen J. 2001. Characterization and improvement of oxygen transfer in pilot plant external airlift bioreactor for mycelial biomass production. World J Microbiol Biotech 17:256-272.
19. Kawase Y, Moo-Young M. 1990. Mathematical models for design of bioreactors: Applications of Kolmogoroff's treory of Isotropie turbulence. Chem Eng J 43:19-41.
20. Kim AD, Kang Y. 1997. Heat and mass transfer in three-phase fluidized-bed reactors-An overview. Chem Eng Sci 52(21/22):3639-3660.
21. Linek V, Moucha T, Sinkule J. 1996. Gas-liquid mass transfer in vessels stirred with multiple impellers-1. gas-liquid mass transfer characteristics in individual stages. Chem Eng Sci 51(21):3203-3212.
22. La in yeast broths. Process Biochemistry 34:549-555.
23. Moucha T, Linek V, Prokopova E. 2003. Gas hold-up, mixing time and gas-liquid columetric mass transfer coefficient of various multi-impeller configurations: Rushton turbine, pitched blade and techmix impeller and their combinations. Chem Eng Sci 2:1839-1846.
24. Nienow AW. 1997. On impeller circulation and mixing effectiveness in the turbulent flow regime. Chem Eng Sci 52(15):2557-2565.
25. Nienow AW. 1998. Hydrodynamics of stirred bioreactors. App Mech Rev 51:1-32.
26. Ozabek B, Gayik S. 2001. The studies on the oxygen mass transfer coefficient in a bioreactor. Process Biochem 36:729-741.
27. Yuguo Z, Zhao W, Xiaolong C. 2000. α-Amylase production by Bacillus subtilis with dregs in an external-loop airlift bioreactor. Biochem Eng J 5:115-121.
28. Schumpe A, Deckwer W. 1987. Viscous medial in tower bioreactors: Hydrodynamic characteristics and mass transfer properties. Bioprocess Eng 2:79-94.
29. Slatter PT. 1997. The Rheological characterization of sludges. Wat Sci Tech 36(11):9-18.
30. Vrabel P, van der Lans RG, Luyben KC, Boon L, Nienow AW. 2000. Mixing in large-scale vessels stirred with multiple radial or radial and axial up-pumping impellers: Modelling and measurements. Chem Eng Sci 55:5881-5896.