By Bohuslav Dobias, Hansjoachim Stechemesser

First released in 1993, Coagulation and Flocculation is a realistic reference for the researchers within the box of the stabilization and destabilization of excellent stable dispersions. by means of omitting chapters that remained unchanged from the 1st variation, the editors of this moment version thoroughly replace, rewrite, and extend upon all chapters to mirror a decade of the most recent advances in either theoretical and alertness points of the sphere.

The authors offer increased fabric that comes with dissociation from an outstanding floor with self reliant websites; advancements to the Gouy-Chapman version; electric double layer, floor ionization, and floor heterogeneity; skinny liquid movies and modeling of a semi-batch method utilizing microprocesses possibilities; and clay mineral intracrystalline reactions, purposes, and gelation. New chapters disguise homopolymers and their influence on colloid balance, together with by no means sooner than released figures and equations; the steadiness of suspensions within the presence of surfactants, polymers, and combos; and the flocculation and dewatering of fine-particle suspensions, emphasizing floc formation, development, constitution, and applications.

The moment variation of Coagulation and Flocculation successfully captures either the theoretical and alertness facets of the newest advances within the evolving box of strong dispersions, suspensions, and combinations.

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Extra resources for Coagulation and Flocculation, Second Edition

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03 As/m2. 1 mol/ l, «/«0 ¼ 80 («0 ¼ vacuum permittivity) and T ¼ 298 K. © 2005 by Taylor & Francis Group, LLC Coagulation and Flocculation 35 Under equilibrium conditions c+(0) is related to the bulk concentration c(1) through the Boltzmann equation. Writing c instead of c(1), we have cÆ (0) ¼ eÇzFw(0)=(RT) c (78) and Equation (77) can be rewritten as Gþ c 0 ¼Q¼ , ^ K exp (zFw(0)=(RT)) þc G (79a) which is equivalent to c ¼ K ezFw(0)=(RT) Q : 1ÀQ (79b) Note the similarity with the Temkin isotherm in Equation (46a).

01 mol/l. The upper curves are calculated from the extended local balance model in Ref. [9], the lower curves from an ordinary Gouy–Chapman– " i is the volume of the hydrated species, ri the correStern model. V sponding radius. Note the increase in energy and ion specificity in the extended model at higher surface charge densities. counterion specificity. Another remarkable result is that at high surface charge densities small counterions displace larger ones from near the surface even if the latter have higher charge.

47 C. Symmetrical Electrolyte ....................................... 50 D. Improvements of the Gouy–Chapman Model ..................................................................... 53 III. Repulsion Between Planar Surfaces: DLVO Theory................................................................ 54 IV. The Zeta Potential........................................................ 57 References.............................................................................. 68 43 © 2005 by Taylor & Francis Group, LLC 44 I.

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