GRANULAR ACTIVATED CARBON Granular activated carbon (GAC) has a relatively larger particle size compared to powdered activated carbon and consequently, presents a smaller external surface. Diffusion of the adsorbate is gases and vapthus an important factor. These carbons are suitable for adsorption of ors, because they diffuse rapidly. Granulated carbons are used for water treatment, deodorization and separation of components of flow system and are also used in rapid mix basins. GAC can be either in granular or extruded form. GAC is designated by sizes such as 8×20, 20×40, or 8×30 for liquid phase applications and 4×6, 4×8 or 4×10 for vapor phase applications. A 20×40 carbon is made of particles that will pass through a U.S. Standard Mesh Size No. 20 sieve (0.84 mm) (generally specified as 85 passing) but be retained on a Standard Mesh Size No. 40 sieve (0.42 mm) AWWA (1992) B604 uses the 50-mesh sieve (0.297 mm) as the minimum GAC size. The most popular aqueous phase carbons are the 12×40 and 8×30 sizes because they have a good balance of size, surface area, and head loss characteristics. |GRANULAR ACTIVATED CARBON IN GUJARAT| |GRANULAR ACTIVATED CARBON IN MUMBAI||GRANULAR ACTIVATED CARBON IN VADODARA| |GRANULAR ACTIVATED CARBON IN MADHYA PRADESH| |GRANULAR ACTIVATED CARBON IN TAMILNADU| |GRANULAR ACTIVATED CARBON IN KARNATAKA| |GRANULAR ACTIVATED CARBON IN PUNJAB| |GRANULAR ACTIVATED CARBON IN UTTERPRADESH| |GRANULAR ACTIVATED CARBON IN DELHI| |GRANULAR ACTIVATED CARBON INCHHENAI||GRANULAR ACTIVATED CARBON IN BANGALORE|