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3Â¥2006-02-24 20:35:06
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marsrat

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The Freundlich adsorption isotherm is:

The parameters , kF and ¡°n¡± show that the capacity of adsorbent is low or strength and the adsorption bond is weak or strong . The Freundlich constant ¡°n¡± value indicates a favourable adsorption when 1 < n < 10, thus the adsorption is better when smaller values are obtained
As mentioned previously type V isotherm has indicative weak adsorbate-adsorbent interactions. ?????
¢¢. The liner forms of Langmuir isotherm is :

qmax the adsorption capacity at saturation (mg g 1) and b is the adsorption coefficient (L mg 1) related to energy of adsorption. The b parameter is the adsorption equilibrium constant, which not only gives information on adsorption rate compared to desorption rate of the system, but also was used to the heat of adsorption. For exothermic reaction, b should decrease with increasing temperature of the system. Opposite trend represent endothermic reaction.
6Â¥2006-08-01 09:07:09
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