schoeplein
Aquarium Advice Addict
No wonder we don't do it. It's virtually unfeasible for the typical consumer.
OPTIMIZATION OF THE REGENERATION PROCEDURE FOR GRANULAR ACTIVATED CARBON (122 Pages)
OPTIMIZATION OF THE REGENERATION PROCEDURE FOR GRANULAR ACTIVATED CARBON (122 Pages)
Granular activated carbons, spent in tertiary treatment of waste water, are thermally regenerated in regenerators such as the multiple-hearth furnace. Wet spent carbon is fed to the regenerator and undergoes three naturally occurring steps, namely (1) drying at about 220*F, (2) pyrolysis of the adsorbed pollutants at 500* to 1550*F and (3) activation with flue gas and steam at 1600* to 1700*F. For each adsorption-regeneration cycle, the carbon volume loss varies from 5% to 10% and the activity loss is as high as 13% on the first cycle but at diminishing amounst on subsequent cycles.