Settling behaviour of polymer flocculated water-treatment sludge I: Analyses of settling curves

Separation and Purification Technology

Volumn 35, Issue 1, 2004, Pages 71-80

  Zhao, Y Q ^a  

^a QUEEN'S UNIVERSITY BELFAST   (United Kingdom)

Author keywords

Alum sludge; Flocculation; Polymer dosage; Settlement; Viscosity; Wall effect

Indexed keywords

DATA REDUCTION; FLOCCULATION; POLYMERS; VISCOSITY; WATER TREATMENT;

NETWORKED STRUCTURES; SLUDGE CONDITIONING;

SEWAGE SLUDGE;

FLOCCULATION; LIQUID-SOLID SEPARATION; POLYMER; SETTLING; SLUDGE; WASTEWATER TREATMENT;

EID: 0347355286     PISSN: 13835866     EISSN: None     Source Type: Journal    
DOI: 10.1016/S1383-5866(03)00132-1     Document Type: Article

References (14)

1. Bache D.H. Zhao Y.Q. Optimising polymer use in alum sludge conditioning: an ad hoc test J. Water SRT-Aqua 50 1 2001 29-38
2. Y.Q. Zhao, E.N. Papavasilopoulos, D.H. Bache, P.A. MacKinnon, Polymer conditioning of alum sludge and discrepancy between the estimates of the optimum dosage, in: IWA Specialised Conference on Sludge Management: Regulation, Treatment, Utilization and Disposal, Acapulco, Mexico, 2001, p. 565.
3. Zhao Y.Q. Papavasilopoulos E.N. Bache D.H. Clogging of filter medium by excess polymer during alum sludge filtration Filtrat. Sep. 35 10 1998 947-950
4. Keenan H.E. Papavasilopoulos E.N. Bache D.H. Measurement of polymer residual in an alum sludge Water Res. 32 10 1998 3173-3176
5. Y.Q. Zhao, Settling behaviour of polymer flocculated water-treatment sludge II: effects of floc structure and floc packing, Sep. Purif. Technol., doi: 10.1016/S1383-5866(03)00133-3. 10.1016/S1383- 5866(03)00133-3
6. Chen G.W. Chang I.L. Hung W.T. Lee D.J. Regimes for zone settling of waste activated sludges Water Res. 30 8 1996 1844-1850
7. F. Jaara, On the structure of flow in an inclined settling column, Ph.D. thesis, University of Strathclyde, UK, 1988.
8. D.C. Dixon, Compression effects in batch settling tests, in: Proceedings of ASCE 108 EE6, 1982.
9. Ramalho R.S. Introduction to Wastewater Treatment Processes 1977 Academic Press New York
10. Dentel S.K. Abu-Orf M.M. Laboratory and full scale studies of liquid stream viscosity and streaming current for characterisation and monitoring of dewaterability Water Res. 29 12 1995 2663-2672
11. Dentel S.K. Abu-Orf M.M. Walker C.A. Optimization of slurry flocculation and dewatering based on electrokinetic and rheological phenomena Chem. Eng. J. 80 1-3 2000 65-72
12. E.N. Papavasilopoulos, On the role of aluminium hydroxide in the conditioning of an alum sludge, Ph.D. thesis, University of Strathclyde, UK, 1998.
13. Bache D.H. Papavailopoulos E.N. Viscosity behaviour of sludge centrate in response to polymer conditioning Water Res. 34 1 2000 354-358
14. Johnson C.P. Li X. Logan B.E. Settling velocities of fractal aggregates Environ. Sci. Technol. 30 1996 1911-1918