waste gas catalysis | Pollutant Biodegradation | Soil air exhaustion | Desorption columns | Removal of Iron & manganese | Chamber filter presses | Solvent Recovery | Heavy metal precipitation | Wet activited-carbon adsorption |
Drinking water Treatment Plant | Effuent Treatment Plant | Arsenic Removal Plant | Fluoride Removal Plant

Contaminated water purification by wet activated carbon

Adsorption by wet activated carb­on takes advantage of the large surface of activated carbon which, depending upon the type of carbon concerned, is between 400 and 1600 m2/g. As the con­taminated water flows through the activated carbon bed, the con­taminants attach to its surface, a process known as adsorption.

Used activated carbon is reacti­vated by the manufacturer in an officially approved plant and can be applied again. It is only in ex­ceptional cases, e.g., when highly

contaminated by pesticides, that reactivation is impossible. In any case, the contaminated carbon is disposed of in a proper and eco­logically compatible way. I n addi­tion, by recycling the activated carbon, treatment costs are kept low.

Experience has shown that even at sites with initially high hydrogen contamination levels it has been possible to reduce pollutant con­centration rather quickly.

The longer a plant is operated at a particular site, the fewer con­taminants are contained in the water flowing through the activa­ted carbon filters. This translates into long activated-carbon life cY­cles and a positive effect on ope­rating costs. When treating water at construction sites it is normally not necessary to exchange the activated carbon for several months.

Activated carbon plants are easy to operate and guarantee hund­red percent availability.

Fields of application of wet activated-carbon adsorption benzene, toluene, xylene (BTEX) chlorinated hydrocarbons (CKW) fluorinated hydrocarbons (FCKW) Water purification plant