Publication

Heavy metal adsorption to a chelating resin in a binary solid fluidized bed

Albert Renken, Jianzhong Yang
2000
Journal Articles

Abstract

The addn. of inert particles of lighter d. and smaller diam. increases considerably the mass transfer coeff. in comparison to that of mono-component active particles at the same liq. velocity. This effect was applied to elimination of Cu ions by adsorption on a chelating resin. The intensification of the film mass transfer coeff. in binary system leads to a 15% increase of the usable adsorbent efficiency. [on SciFinder (R)]

Official source

https://infoscience.epfl.ch/entities/publication/e17fa19b-3abd-4a0c-9353-dca5773044ac

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Albert Renken, Jianzhong Yang
2000
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/e17fa19b-3abd-4a0c-9353-dca5773044ac

About this result

Related concepts (19)

Adsorption

Adsorption is the adhesion of atoms, ions or molecules from a gas, liquid or dissolved solid to a surface. This process creates a film of the adsorbate on the surface of the adsorbent. This process differs from absorption, in which a fluid (the absorbate) is dissolved by or permeates a liquid or solid (the absorbent). Adsorption is a surface phenomenon and the adsorbate does not penetrate through the surface and into the bulk of the adsorbent, while absorption involves transfer of the absorbate into the volume of the material, although adsorption does often precede absorption.

Pressure swing adsorption

Pressure swing adsorption (PSA) is a technique used to separate some gas species from a mixture of gases (typically air) under pressure according to the species' molecular characteristics and affinity for an adsorbent material. It operates at near-ambient temperature and significantly differs from the cryogenic distillation commonly used to separate gases. Selective adsorbent materials (e.g., zeolites, (aka molecular sieves), activated carbon, etc.) are used as trapping material, preferentially adsorbing the target gas species at high pressure.

Langmuir adsorption model

The Langmuir adsorption model explains adsorption by assuming an adsorbate behaves as an ideal gas at isothermal conditions. According to the model, adsorption and desorption are reversible processes. This model even explains the effect of pressure i.e. at these conditions the adsorbate's partial pressure, , is related to the volume of it, V, adsorbed onto a solid adsorbent. The adsorbent, as indicated in the figure, is assumed to be an ideal solid surface composed of a series of distinct sites capable of binding the adsorbate.

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Heavy metal adsorption to a chelating resin in a binary solid fluidized bed

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