Comparison of dewaterability and floc structure of synthetic sludge with activated sludge

Environmental Technology

Volumn 26, Issue 1, 2005, Pages 1-10

  Chu, C P ^a   Lee, D J ^a  

^a NATIONAL TAIWAN UNIVERSITY   (Taiwan)

Author keywords

Conditioning; Dewaterability; Flocs; Structure; Synthetic sludge

Indexed keywords

LIGHT SCATTERING; NATURAL GAS CONDITIONING; STRUCTURE (COMPOSITION);

ACTIVATED SLUDGE; DEWATERABILITY; FLOCS; FREE SETTLING TESTS; SIERPINSKI CARPET; SMALL-ANGLE LIGHT SCATTERING; STRUCTURAL INFORMATION; SYNTHETIC SLUDGE;

FRACTAL DIMENSION;

ACTIVATED SLUDGE; DEWATERING; FLOC; LIQUID-SOLID SEPARATION; WASTEWATER TREATMENT;

ACTIVATED SLUDGE; ARTICLE; CONTROLLED STUDY; FILTRATION; INFORMATION; INTERMETHOD COMPARISON; LIGHT SCATTERING; PARTICLE SIZE; POROSITY; SIMULATION; SLUDGE CONDITIONING; SLUDGE DEWATERING; SLUDGE SETTLING; SOLUTE; STRUCTURE ANALYSIS;

EID: 14944382636     PISSN: 09593330     EISSN: None     Source Type: Journal    
DOI: 10.1080/09593332608618580     Document Type: Article

References (23)

1. Sanin F.D. and Vesilind P.A., Synthetic sludge: A physical/chemical model in understanding bioflocculation. Water Environ. Res., 68, 927-933 (1996).
2. Sanin F.D. and Vesilind P.A., Comparison of physical properties of synthetic sludge with activated sludge. Water Environ. Res., 71, 191-196 (1999).
3. Wen H.J., Liu C.I. and Lee D.J., Size and density of polymer flocculated sludge flocs. J. Environ. Sci. Health A, 32, 1125-1131 (1997).
4. Ormeci B. and Vesilind P.A., Development of an improved synthetic sludge: a possible surrogate for studying activated sludge dewatering characteristics. Water Res., 34, 1069-1078 (2000).
5. Legrand V., Hourdet D., Audebert R. and Snidaro D., Deswelling and flocculation of gel networks: application to sludge dewatering. Water Res., 32, 3662-3672 (1998).
6. Paixao S.M., Santos P., Baeta-Hall L., Tenreiro R. and Anselmo A.M., Alternative inocula as activated sludge surrogate culture for a toxicity test. Environ. Toxicol., 18, 37-44 (2003).
7. Block J.C., Comments on Development of an improved synthetic sludge: a possible surrogate for studying activated sludge dewatering characteristics. Water Res., 35, 1363-1364 (2001).
8. Ormeci B. and Vesilind P.A., Authors' reply. Water Res. 35, 1365-1366 (2001).
9. Tsou G.W., Wu R.M., Yen P.S., Lee D.J. and Peng X.F., Advective flow and floc permeability. J. Colloid Interf. Sci., 250, 400-408 (2002).
10. Wu R.M., Lee D.J., Waite T.D. and Guan J., Multi-level structure of sludge flocs. J. Colloid Interf. Sci., 252, 383-392 (2002).
11. Zartarian F., Mustin C., Villemin G., Ait-Ettager T., Thill A., Bottero J.Y., Mallet J.L. and Snidaro D., Three-dimensional modeling of an activated sludge floc. Langmuir, 13, 35-40 (1997).
12. Thill, A., Veerapaneni, S., Simon, B., Wiesner, M., Bottero, J. Y. and Snidaro, D., Determination of structure of aggregates by confocal scanning laser microscopy. J. Colloid Interf. Sci., 204, 357-362 (1998).
13. Chu C.P. and Lee D.J., Multiscale structure of sludge flocs. Chem. Eng. Sci., 59, 1875-1883 (2004).
14. Chu C.P. and Lee D.J., Bilevel thresholding of image of sludge flocs. Environ. Sci. Technol., 38, 1161-1169 (2004).
15. Chu C.P., Lee D.J. and Peng X.F., Structure of conditioned sludge flocs. Water Res., 38, 2125-2134 (2004).
16. Lee D.J. and Hsu Y.H., Fluid flow in capillary suction apparatus. Ind. Eng. Chem. Res., 31, 2379-2384 (1992).
17. Chen G.W., Chang I.L., Hung W.T. and Lee D.J., Regimes of zone settling of waste activated sludge. Water Res., 30, 1844-1851 (1996).
18. Vesilind P.A., Capillary suction time as a fundamental measure of sludge dewaterability. J. Water Pollut. Control Fed., 60, 215-220 (1988).
19. Li D.H. and Ganczarczyk J.J., Fractal geometry of particle aggregates generated in water and wastewater treatment processes. Environ. Sci. Technol., 23, 1385-1389 (1989).
20. Tang P. and Raper J.A., Modelling the settling behaviour of fractal aggregates-a review. Powder Technol., 123, 114-125 (2002).
21. Zahid W.M. and Ganczarczyk J.J., Fractal properties of the RBC biofilm structure. Water Sci. Technol., 29, 271-279 (1994).
22. Mandelbrot B.B., The Fractal Geometry of Nature; W. H. Freeman and Co. New York (1983).
23. Chu C.P. and Lee D.J., Effects of pore geometry on intrafloc flow. J. Chin. Inst. Chem. Eng., 35, 659-666 (2004).