Enhancement of alum sludge dewatering capacity by using gypsum as skeleton builder

Colloids and Surfaces A: Physicochemical and Engineering Aspects

Volumn 211, Issue 2-3, 2002, Pages 205-212

  Zhao, Y Q ^a  

^a QUEEN'S UNIVERSITY BELFAST   (United Kingdom)

Author keywords

Alum sludge; Compressibility; Dewatering; Gypsum; Polymer; Skeleton builder

Indexed keywords

DEWATERING; GYPSUM; POLYMERS; SLUDGE DISPOSAL;

LATTICE STRUCTURE;

COLLOIDS;

ALUMINUM POTASSIUM SULFATE; CALCIUM SULFATE; POLYMER;

ARTICLE; ATMOSPHERIC PRESSURE; COMPRESSION; FILTRATION; MOISTURE; PERMEABILITY; POROSITY; PRIORITY JOURNAL; SLUDGE DEWATERING;

EID: 0037015969     PISSN: 09277757     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0927-7757(02)00277-7     Document Type: Article

References (24)

1. Novak J.T., O' Brien J.H. Polymer conditioning of chemical sludges. J. WPCF. 47:(10):1975;2397-2410.
2. W.R. Knocke, D.L. Wakeland, Fundamental characteristics of water treatment plant sludges, J. AWWA 75 (1983) 516-523.
3. Knocke W.R., Dishman C.M., Miller G.F. Measurement of chemical sludge floc density and implications related to sludge dewatering. Water Environ. Res. 65:(6):1993;735-743.
4. E.J. La Heij, An Analysis of Sludge Filtration and Expression, Ph.D. thesis, Technical University Eindhoven, Netherland, 1994.
5. E.N. Papavasilopoulos, On the Role of Aluminium Hydroxide in the Conditioning of an Alum Sludge, Ph.D. thesis, University of Strathclyde, UK, 1998.
6. Benitez J., Rodriguez A., Suarez A. Optimisation technique for sewage sludge conditioning with polymer and skeleton builders. Water Res. 28:(10):1994;2067-2073.
7. Sorensen P.B., Hansen J.A. Extreme solid compressibility in biological sludge dewatering. Water Sci. Technol. 28:(1):1993;133-143.
8. Moehle F.W. Fly ash aids in sludge disposal. Environ. Sci. Technol. 1:(5):1967;374-379.
9. Nelson R.F., Brattlof B.D. Sludge pressure filtration with fly ash addition. J. WPCF. 51:1979;1024-1031.
10. Albertson O.E., Kopper M. Fine coal aided centrifugal dewatering of waste activated sludge. J. WPCF. 55:1984;145-156.
11. Zall J., Galil N., Rehbum M. Skeleton builders for conditioning oily sludge. J. WPCF. 59:1987;699-706.
12. Denkert R., Retter E.A. Quicklime pre-conditioning of sludge to be dewatered in centrifuges lowers disposal costs. Water Sci. Technol. 28:(1):1993;223-231.
13. Zouboulis A.I., Guitonas A. Use of fly ash as conditioning agent for improving biological sludge dewaterability by filter press. Fresenius Environ. Bull. 4:1995;387-392.
14. Zhao Y.Q., Bache D.H. Conditioning of alum sludge with polymer and gypsum. Colloid Surf. A: Physicochem. Eng. Aspect. 194:(1-3):2001;213-220.
15. Geertsema W.S., Knocke W.R., Novak J.T., Dove D. J. AWWA. 86:1994;64-74.
16. Bache D.H., Hossain M.D. Optimum coagulation conditions for coloured water in terms of floc properties. J. Water SRT Aqua. 40:(3):1991;170-178.
17. Tambo N., Watanabe Y. Physical characteristics of flocs - I. The floc density function and aluminium floc. Water Res. 13:1979;409-419.
18. Zhao Y.Q., Papavasilopoulos E.N., Bache D.H. Clogging of filter medium by excess polymer during alum sludge filtration. Filtr. Sep. 35:(10):1998;947-950.
19. H. Rahman, Influence of physical characteristics on the hydraulic conductivity of digested sludge, Ph.D. thesis, University of Strathclyde, UK, 1989.
20. Bache D.H., Rasool E., Ail A., McGilligan J.F. Floc character: measurement and role in optimum dosing. J. Water SRT Aqua. 44:(2):1995;83-92.
21. Y.Q. Zhao, D.H. Bache, Integrated effects of applied pressure, time, and polymer doses on alum sludge dewatering behaviour, Waste Manage. (2002), in press.
22. Wu C.C., Huang C., Lee D.J. Effects of polymer dosage on alum sludge dewatering characteristics and physical properties. Colloid Surf. A: Physicochem. Eng. Aspect. 122:(1-3):1997;89-96.
23. Y.Q. Zhao, E.N. Papavasilopoulos, D.H. Bache, P.A. Mackinnon, Effects of polymer conditioning on alum sludge characteristics: A review, 2001 (Water Pollution VI: Modelling, Measuring and Prediction, ISBN: 1-85312-878-3, Proceedings of the Sixth International Conference on Modelling, Measuring and Prediction of Water Pollution, September 2001, Rhodes, Greece, pp. 167-176).
24. J.E. Smith, S.W. Hathaway, J.B. Farrell, R.B. Dean, Sludge conditioning with incinerator ash, in: Proceedings of the 27th Industrial Waste Conference, Purdue University Extension Series 911-925, 1972.