Distinct mechanisms of particle aggregation induced by alum and PACl: Floc structure and DLVO evaluation

Colloids and Surfaces A: Physicochemical and Engineering Aspects

Volumn 347, Issue 1-3, 2009, Pages 56-63

  Wu, Xiaohong ^a   Ge, Xiaopeng ^a   Wang, Dongsheng ^a   Tang, Hongxiao ^a  

^a INSTITUTE OF GEOLOGY AND GEOPHYSICS   (China)

Author keywords

Alum; Coagulation; DLVO; PACl; Particle aggregation

Indexed keywords

ALUMINA; CHLORINE COMPOUNDS; FLOCCULATION; SILICA; SULFATE MINERALS; ZETA POTENTIAL;

ALUM; CHARGE NEUTRALIZATION; COAGULANT DOSAGE; DLVO; DLVO THEORY; ELECTRICAL REPULSION; FLOC STRUCTURE; HIGH-CONTENT; IN-SITU; INTERACTION ENERGIES; INTERACTION FORCES; PACL; PARTICLE AGGLOMERATIONS; PARTICLE AGGREGATION; POLYALUMINUM CHLORIDE; POLYCATIONS; SALT CONCENTRATION; SILICA MICROSPHERES;

COAGULATION;

ALUMINUM CHLORIDE; ALUMINUM POTASSIUM SULFATE; POLYCATION; SODIUM CHLORIDE;

ANALYTIC METHOD; ARTICLE; CHEMICAL COMPOSITION; CHEMICAL INTERACTION; CONCENTRATION (PARAMETERS); ELECTRICITY; ENERGY; FLOCCULATION; FORCE; HYDROLYSIS; PH; PRIORITY JOURNAL; SYNTHESIS; THEORY; ZETA POTENTIAL;

EID: 69249245316     PISSN: 09277757     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.colsurfa.2008.12.005     Document Type: Article

References (25)

1. O'Melia C.R. The aquasols: the behavior of small particles in aquatic systems. Environ. Sci. Technol. 14 (1980) 1052-1060
2. Stumm W. Chemistry of the Solid-Water Interface (1992), Wiley Interscience, New York
3. Stumm W., and Morgan J.J. Chemical aspects of coagulation. J. Am. Water Works Assoc. 54 (1962) 971-994
4. Stumm W., and O'Melia C.R. Stoichiometry of coagulation. J. Am. Water Works Assoc. 60 (1968) 514-539
5. Letterman R.D., and Iyer D. Modeling the effects of adsorbed hydrolyzed aluminum and solution chemistry on flocculation kinetics. Environ. Sci. Technol. 19 (1985) 673-681
6. Dentel S.K. Application of the precipitation-charge neutralization model of coagulation. Environ. Sci. Technol. 22 (1988) 825-832
7. Bottero J.Y., Tchoubar D., Axelos M.A.V., Quienne P., and Fiessinger F. Flocculation of silica colloids with hydroxy aluminum polycations: relation between floc structure and aggregation mechanisms. Langmuir 6 (1990) 596-602
8. Van Benschoten J.E., and Edzwald J.K. Chemical aspects of coagulation using aluminum salts. I. Hydrolytic reactions of alum and polyaluminum chloride. Water Res. 24 (1990) 1519-1526
9. Permitsky D.J., and Edzwald J.K. Selection of alum and polyaluminum coagulants: principle and applications. J. Water SRT-Aqua. 55 (2006) 121-141
10. Duan J.M., and Gregory J. Coagulation by hydrolyzing metal salts. Adv. Colloid Interface Sci. 100-102 (2003) 475-502
11. Tang H.X., and Luan Z.K. The differences of behavior and coagulating mechanism between inorganic polymer flocculants and traditional coagulants. In: Hahn H.H., Hoffmann E., and Ødegaard H. (Eds). Chemical Water and Waste water Treatment vol. IV (1996), Springer-Verlag 83-93
12. Wang D.S., and Tang H.X. Quantitative model of coagulation with inorganic polymer flocculants PACl: application of the PCNM. J. ASCE Environ. Eng. 132 (2006) 434-441
13. Ye C.Q., Wang D.S., Shi B.Y., Yu J.F., Qu J.H., Edwalz M., and Tang H.X. Alkalinity effect of coagulation with polyaluminum chloride: role of electrostatic patch. Colloid Surf. A-Physicochem. Eng. Asp. 294 (2007) 163-173
14. 13-PACl. Colloid Surf. A-Physicochem. Eng. Asp. 305 (2007) 89-96
15. Derjaguin B.V., and Landau L. Theory of the stability of strongly charged lyophobic sols and the adhesion of strongly charged particles in solutions of electrolytes. Acta Physicochim. USSR 14 (1941) 633-662
16. Verwey E.J.W., and Overbeek J.Th.G. Theory of the Stability of Lyophobic Colloids. 1st ed. (1948), Elsevier Publishing Company, Inc., New York
17. Dentel S.K. Beyond DLVO: advancing the capabilities of coagulation process models. In: Hahn H.H., Hoffmann E., and Ødegaard H. (Eds). Chemical Water and Wastewater Treatment vol. IX (2007), IWA Publishing 171-188
18. Elimelech M., and O'Melia C.R. Effect of particle size on collision efficiency in the deposition of Brownian particles with electrostatic energy barriers. Langmuir 6 (1990) 1153-1163
19. Hahn M.W., Abadzic D., and O'Melia C.R. Aquasol: on the role of secondary minimum. Environ. Sci. Technol. 38 (2004) 5915-5924
20. Waite T.D. Measurement and implication of floc structure in water and wastewater treatment. Colloid Surf. A-Physicochem. Eng. Asp. 15 (1999) 27-41
21. Amal R., Raper J.A., and Waite T.D. Fractal structure of hematite aggregates. J. Colloid Interface Sci. 140 (1990) 158-168
22. Guan J., Waite T.D., and Amal R. Rapid structure characterization of bacterial aggregates. Environ. Sci. Technol. 32 (1998) 3735-3742
23. Hamaker H.C. The London-van der Waals attraction between spherical particles. Physics 4 (1937) 1058-1072
24. Gregory J. Particles in Water: Properties and Processes (2006), Taylor & Francis Group, LLC
25. Marmur A. A kinetic theory approach to primary and secondary minimum coagulations and their combination. J. Colloid Interface Sci. 72 (1979) 41-48