Slide 1

Continuous Adsorption ProcessSubmitted to : Submitted by :Mr. S S Lakhawat Jasleen Rajpal Btech Biotech 7th Semester1

ADSORPTION Adsorption is a reversible process which is shown by solids like activated charcoal, zeolite, silica clay, alumina etc.The end product which is separated is called the absorbate.The material used for purification is called adsorbent.

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ADVANTAGES

It occurs very fast. It does not cause denaturation of bio molecules. It is an economic process. It is highly specific process.

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4ADSORPTION ISOTHERM

It indicates the graphical representation of the adsoption equilibria. It is obtained by plotting the concentration of solute to be adsorbed in the adsorbent against the concentration of the solute present in the liquid phase. It can be of three types:Linear IsothermLangmuir IsothermFreudlich Isotherm

5LINEAR ISOTHERM

C[S]KC= KSWhere,C = concentration of product in the solid phase.S = concentration of solute in the liquid phase.

LANGMUIR ISOTHERM

1/C1/ Co1/ [S]Slope= k/CoC= Co S/K+S80%-90% of proteins show langmuir isotherm

6FREUDLICH ISOTHERM

C[S]C= K SnAll types of antibiotics, varieties of bio molecules show freudlich isotherm.The value of N>1 = detoriates adsorption processN