Adsorption Calculations and Modelling by Howard Brenner (Eds.) PDF

By Howard Brenner (Eds.)

ISBN-10: 0750691212

ISBN-13: 9780750691215

'Adsorption Calculations and Modelling' offers readers with sensible, worthwhile information regarding find out how to make adsorption calculations and formulate types describing adsorption tactics. in contrast to so much books in this topic, this publication treats either fuel section adsorption and liquid part adsorption with equivalent emphasis, and provides a rigorous remedy of multi-component adsorption. It additionally covers adsorption functions in environmental purposes together with using impregnated adsorbents for cover opposed to poisonous gases and carbon adsorption in water and wastewater treatment.

Explores the main updated info on multicomponent adsorption
Details adsorption functions in environmental program
Explains the basics of adsorption calculation in an easy, elementary demeanour

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Extra resources for Adsorption Calculations and Modelling

Example text

The basis of the complexation model of ion adsorption is the formation of surface complexes at certain charged sites of the surface. Thus, it is important to have some understanding of the surface charge phenomenon and the means for relating the extent of surface charge with the aqueous environment to which the surface is exposed. 1. V + Charge by Adsorption of Protons—l~pK Model. Bolt and Van Riemsdijk (1982) considered the so-called 1-pK model, where H is /2 + 1 /ion 2 and the surface + /2 the charge-determining groups are 1 represented as SOH and S O H ~ .

79) T] Eqs. 78) are the equations that relate the surface charge with its aqueous environment, the type of association (or adsorption) reaction responsible for surface charging, and the kinds / 2nine + parameters 1 / and 2 variables: of surface sites. + There are altogether K , N , T, /, {H }, o , i^ , [ S O H ] , and [ S O H ] . Accordingly, H s 0 0 2+ if both the system and environment variables are known (in other words, with K , N T, J, and {H } known), the extent of surface H si charging can be readily determined.

Eq. 99)], respectively. These constants are assumed to be known and available in the literature. As was mentioned before, Eqs. 106) are obtained from the hydrolysis of cations or anions followed by complexation. However, similar expressions can be obtained from the complexation of cations or anions with surface species [Eqs. n The main variation in this and K are defined case is that the equilibrium constants K M(Qli)l HlAn differently from their definitions in Eqs. 108). Adsorption isotherm of ions refers to the relationship between w/ ])y + 2 ] + [ S O H ^+Y " ] - [ S O ~ ] ]-[SOH^Y-]} + _ _ JV 0 *] — for the F anion.

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Adsorption Calculations and Modelling by Howard Brenner (Eds.)


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