activated carbon
Post on 04-Dec-2014
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• Activated carbon is a material derived mostly from charcoal that has been treated with oxygen creating many tiny pores between the carbon atoms.
• Production of activated carbon comes from different carbonaceous materials like coal, wood, coconut shells, etc.
• Two types of activated carbon production are physical reactivation and chemical activation.
Zoomed images of Carbon Surface and Pores (zoom increases left to right)
Different Types of Activated Different Types of Activated Carbon PropertiesCarbon Properties
PropertyPropertyCoconut Coconut Activated Activated CarbonCarbon
Coal Activated Coal Activated CarbonCarbon
Lignite Lignite Activated Activated CarbonCarbon
Wood Activated Wood Activated Carbon Carbon (Powder)(Powder)
MicroporeMicropore highhigh highhigh mediummedium lowlow
MacroporeMacropore lowlow mediummedium highhigh highhigh
HardnessHardness highhigh highhigh lowlow n/an/a
AshAsh 5%5% 10%10% 20%20% 5%5%
Water Soluble Water Soluble AshAsh highhigh lowlow highhigh mediummedium
DustDust lowlow mediummedium highhigh n/an/a
ReactivationReactivation goodgood goodgood poorpoor nonenone
Apparent Apparent DensityDensity 0.48 g/cc0.48 g/cc 0.48 g/cc0.48 g/cc 0.4 g/cc0.4 g/cc 0.35 g/cc0.35 g/cc
Iodine No.Iodine No. 11001100 10001000 600600 10001000http://www.carbochem.com/activatedcarbon101.html#Types
• Water treatment• Air treatment• Gas purification• Gold purification• Metal extraction• Medicine• Sewage treatment• Gas masks• Filter masks
ReferencesReferences• http://www.carbochem.com/activatedcarbon101.
html#Types• http://www.howstuffworks.com/framed.htm?
parent=question209.htm&url=http://www.ext.nodak.edu/extpubs/h2oqual/watsys/ae1029w.htm
• http://en.wikipedia.org/wiki/Activated_carbon• http://www.cee.vt.edu/ewr/environmental/
teach/wtprimer/carbon/sketcarb.html
Carbonized coconut Activated coconut
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