Relationship between flocculation of activated sludge and composition of extracellular polymeric substances

Water Science and Technology

Volumn 47, Issue 12, 2003, Pages 95-103

  Wilén, Britt Marie ^a,b   Jin, Bo ^a   Lant, Paull ^a  

^a UNIVERSITY OF QUEENSLAND   (Australia)

^b CHALMERS UNIVERSITY OF TECHNOLOGY   (Sweden)

Author keywords

Bioflocculation; Extracellular polymeric substances (EPS); Floc properties; Flocculation ability; Relative hydrophobicity; Settling properties; Surface charge

Indexed keywords

FLOCCULATION; HYDROPHOBICITY; MICROORGANISMS; POLYMERS; SETTLING TANKS; WASTEWATER TREATMENT;

EXTRACELLULAR POLYMERIC SUBSTANCES (EPS);

ACTIVATED SLUDGE PROCESS;

POLYMER;

ACTIVATED SLUDGE; BIOLOGICAL TREATMENT; FLOC; FLOCCULATION; SEPARATION; SEWAGE TREATMENT;

ACTIVATED SLUDGE; CHEMICAL COMPOSITION; CHEMICAL PARAMETERS; CONFERENCE PAPER; CONTROLLED STUDY; CORRELATION FUNCTION; FLOCCULATION; HYDROPHOBICITY; PHYSICAL PARAMETERS; SHEAR RATE; SLUDGE SETTLING; SURFACE CHARGE; SURFACE PROPERTY; WASTE WATER TREATMENT PLANT;

EID: 0043125690     PISSN: 02731223     EISSN: None     Source Type: Journal    
DOI: 10.2166/wst.2003.0633     Document Type: Conference Paper

References (22)

1. ALPHA, AWWA, WEF Standard Methods for the Examination of Water and Wastewater, 19th edn, American Public Health Association, Baltimore, Md.
2. Biggs, C.A. Lant, P.A. (2000) Activated sludge flocculation: On-line determination of floc size and the effect of shear, Wat. Res., 34, 2542-2550.
3. Bura, R. Cheung, M. Liao, B. Finlayson, J. Lee, B.C. Droppo, I.G. Leppard, G.G. Liss, S.N. (1998) Composition of extracellular polymeric substances in the activated sludge floc matrix, Wat. Sci. Tech., 37(4-5), 325-333.
4. Chang, I.-S. Lee, C.-H. Membrane filtration characteristics in membrane-coupled activated sludge system - The effect of physiological states of activated sludge on membrane fouling, Desalination, 120, 221-233.
5. Eikelboom, D.H. Van Buijsen, H.J.J. (1981) Microscopic Sludge Investigation Manual, TNO Research Institute for Environmental Hygiene, The Netherlands.
6. Eriksson, L. Steen, I. Tendaj, M. (1992) Evaluation of sludge properties at an activated sludge plant, Wat. Sci. Tech., 25(6), 251-265.
7. Frølund, B. Keiding, K. Nielsen, P.H. (1994) A comparative study of biopolymers from a conventional and an advanced activated sludge treatment plant, Wat. Sci. Tech., 29(7), 137-141.
8. Frølund, B. Palmgren, R. Keiding, K. Nielsen, P.H. (1996) Extraction of extracellular polymers from activated sludge using a cation exchange resin, Wat. Res., 30, 1749-1758.
9. Gregory, J. (1989) Fundamentals of flocculation, CRC Critical Rev. Environ. Control, 19, 185-230.
10. Higgins, M.J. Novak, J.T. (1997) Characterization of extracellular protein and its role in bioflocculation, J. Env. Eng., 123, 479-485.
11. Jorand, F.J. Guicherd, P. Urbain, V. Manem, J. Block, J.C. (1994) Hydrophobicity of activated sludge flocs and laboratory-grown bacteria, Wat. Sci. Tech., 30(11), 211-218.
12. Jorand, F. Zartarian, F. Thomas, F. Block, J.C. Botero, J.Y. Villemin, G. Urbain, V. Manem, J. (1995) Chemical and structural (2D) linkage between bacteria within activated sludge flocs, Wat. Res., 29, 1639-1647.
13. Keiding, K. Nielsen, P.H. (1997) Desorption of organic macromolecules from activated sludge: Effect of ionic composition, Wat. Res., 31, 1665-1672.
14. Liao, B.Q. Allen, D.G. Droppo, I.G. Leppard, G.G. Liss, S.N. (2001) Surface properties of sludge and their role in bioflocculation and settleability, Wat. Res., 35, 339-350.
15. Liss, S.N. Droppo, J.G. Flannigan, D.T. Leppard, G.G. (1996) Floc architecture in wastewater and natural river systems, Env. Sci. Tech., 30, 680-686.
16. Mikkelsen, L.H. Keiding, K. (1999) Equilibrium aspects of the effects of shear and solids content on aggregate deflocculation, Adv. Coll. Interface. Sci., 80, 151-182.
17. Mikkelsen, L.H. Keiding, K. (2002) Physico-chemical characteristics of full scale sewage sludges with implication to dewatering, Wat. Res., 36, 2451-2462.
18. Morgan, J.W. Forster, C.F. Evison, L. (1990) A comparative study of the nature of biopolymers extracted from anaerobic and activated sludges, Wat. Res., 24, 743-750.
19. Nielsen, P.H. Keiding, K. (1998) Disintegration of activated sludge in the presence of sulfide, Wat. Res., 32, 313-320.
20. Palmgren, R. Nielsen, P.H. (1996) Accumulation of DNA in the exopolymeric matrix of activated sludge and bacterial cultures, Wat. Sci. Tech., 34(5-6), 233-240.
21. Urbain, V. Block, J.C. Manem, J. (1993) Bioflocculation in activated sludge: An analytical approach, Wat. Res., 5, 829-838.
22. Zita, A. Hermansson, M. (1994) Effects of ionic strength on bacterial adhesion and stability of flocs in a wastewater activated sludge system, Appl. Environ. Microbiol., 60, 3041-3048.