Detachment mechanisms in a liquid fluidised bed

Environmental Technology (United Kingdom)

Volumn 17, Issue 5, 1996, Pages 517-524

  Sakkas, N D ^a   Lekkas, T D ^a  

^a UNIVERSITY OF THE AEGEAN   (Greece)

Author keywords

Bed turbulence; Detachment; Fluidisation; Form drag; Particle attrition; Skin drag; Velocity gradient

Indexed keywords

DRAG; FLUIDIZATION; SALT REMOVAL; SHEAR FLOW; SHEAR STRESS;

CLAY PARTICLES; CRITICAL REVIEW; CROSS-DISCIPLINES; DETACHMENT; FORM DRAG; PARTICLE ATTRITIONS; REALISTIC MODEL; VELOCITY GRADIENTS;

FLUIDIZED BEDS;

SODIUM CHLORIDE;

ARTICLE; BIOFILM; CLAY; MODEL; PARTICLE SIZE; SHEAR STRESS; SUSPENDED PARTICULATE MATTER;

EID: 0029997635     PISSN: 09593330     EISSN: 1479487X     Source Type: Journal    
DOI: 10.1080/09593331708616413     Document Type: Article

References (12)

1. Chang T, Rittman B. and Amar D., Biofilm detachment mechanisms in a liquid fluidised bed. Biotechnol. Bioeng. 38, 499-506 (1991)
2. Amirtharajah A., Optimum backwashing of sand filters. J. Envir. Engng. Div. ASCE104, 917-932 (1978)
3. Valencia J.A. and Cleasby J.L., Velocity gradients in granular filter backwashing. J. Am. Wat. Wks. Ass. 71, 732-738 (1979)
4. Quaye B.A., Predicting optimum backwash rates and expansion of multi-media filters. Wat. Res. 21,1077-1087 (1987)
5. Camp T.R., Theory of water filtration. J. San. Engng. Div. 90,1-30 (1964)
6. Richardson Z.F. and Zaki W.N., Sedimentation and fluidisation: Part I. Trans. Inst. Chern. Engrs. 32, 35-53 (1954)
7. Joshi J.B., Solid-Liquid fluidised beds: Some design aspects. Chem. Engng. Res. Des. 41,143-161 (1983)
8. Fitzpatrick C.S.B., Detachment of deposits by fluid shear during filter backwashing. Wat. Supply. 9,177-183 (1991)
9. Cleaver J.W. and Yates B., Mechanism of detachment of colloidal particles from a flat substrate in a turbulent flow. J. Colloid. Interface. Sci. 44, 464-474 (1973)
10. Amirtharajah A. and Giourgas A., Theory for particle detachment from sand grains during backwashing of filters. Int. Symposium Applications of Fluid Mechanics and Heat Transfer to Energy and Environmental Problems, Patras, Greece (1981)
11. Rittman B. and Chang T., Comparative performance of biofilm reactor types. Biotechnol. Bioeng. 23,1341-1370 (1982)
12. Handley D, Doraisamy A, Butcher K.L. and Franklin N.L., A study of the fluid and particle mechanics in liquid fluidised beds. Trans. Inst. Chem. Engrs. 44, 260-273 (1966)