2. INTRODUCTION

3. ADSORPTION
The removal of dissolved substances from solution using adsorbents such as activated carbon 3

4. ADSORPTION
Adsorption is the process in which matter is extracted from one phase and concentrated at the surface of a second phase. (Interface accumulation).
This is a surface phenomenon as opposed to absorption where matter changes solution phase.

5. Absorption is the process in which a fluid is dissolved by a liquid or a solid (absorbent).
Adsorption is the process in which atoms, ions or molecules from a substance (it could be gas, liquid or dissolved solid) adhere to a surface of the adsorbent. Adsorption is a surface-based process where a film of adsorbate is created on the surface while absorption involves the entire volume of the absorbing substance. d

6. If we have to remove soluble material from the solution phase, but the material is neither volatile nor biodegradable, we often employ adsorption processes. Also adsorption has application elsewhere, as we will discuss later.
Adsorbate: material being adsorbed
Adsorbent: material doing the adsorbing.

9. The physical form of the GAC may depend on source of raw materials
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10. MANUFACTURE OF
ACTIVATED CARBON:
DIFFERENT RAW
MATERIALS
                                                      
                                                                                 
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11. DIFFERENT PHYSICAL FORMS OF ACTIVATED CARBON
                                                                           
                                                                           
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12.                                                                                   12

13. Area of a few grams of activated
carbon
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14.                                            
                                           
Application
Methodology 14

15. REACTIVATION OF ACTIVATED CARBON
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