How does activated carbon adsorb

Although standard activated carbon may not be able to remove certain contaminants, General Carbon has many specialty vapor and liquid filtration products for these problematic applications. There is not one type of carbon that can remove every single contaminant.

As a result, if multiple chemicals need to be removed, General Carbon can provide a blend of various products that each remove a specific contaminant. If you should have any questions about any of our products please do not hesitate to contact us. Dvorak and Sharon O. The activity of an active carbon column depends on the temperature and the nature of the substances. Water goes through the column constantly, which gives an accumulation of substances in the filter.

For that reason the filter needs to be replace periodically. A used filter can be regenerated in different ways, granular carbon can be regenerated easily by oxidizing the organic matter. A small part of the active carbon is destroyed during the regeneration process and must be replaced. If you work with different columns in series, you can assure that you will not have a total exhaustion of your purification system. Molecules from gas or liquid phase will be attached in a physical way to a surface, in this case the surface is from the active carbon.

The adsorption process takes place in three steps:. The activity level of adsorption is based on the concentration of substance in the water, the temperature and the polarity of the substance. Every kind of carbon has its own adsorption isotherm see figure 1 and in the water treatment business this isotherm is definite by the function of Freundlich. The second curve from active carbon see figure 2 shows the exhausting of a filter.

Normally we place a UV-disinfections unit after the active carbon column. When a substance is attached to a surface is is called adsorption, is this case the substance is attached to the internal surface of active carbon. When a substance is absorbed in a different medium it is called absorption.

When a gas is taken in a solution it is called absorption. Acetic anhydride. Hydrogen iodide. Acetone PDF. Hydrogen selenide. Alcoholic Beverages. Perfumes, cosmetics. Isopropyl acetate. Isopropyl aclcohol PDF. Popcorn and candy. Automobile Exhaust.

Ether PDF. Menthyl acrylate. Propyl mercaptan. Methyl butyl ketone. Methyl cellosolve. Putrefying substances. Methyl cellosolve acetate. Butyl cellosolve. Methyl chloroform. Ethyl ether PDF. Methyl ethyl ketone PDF. Methyl isobutyl ketone.