Activated Carbon
Liquid Phase Application

Drinking water purification
Waterworks use CarboTech activated carbons on a major scale for upgrading bank-filtered water and groundwater into drinking water. In this process, activated carbon is effective in several ways at the same time. Organic odours and tastes are adsorbed, as are pharmaceutical residues, agricultural biocides and chlorinated hydrocarbons, which occur with increasing frequency. Spent activated carbon from drinking water treatment is economically recycled. It can be thermally reactivated as part of CarboTech's services and resupplied to the customer.   
   
Chemical, pharmaceutical and food industry
Many industrial processes occur in the liquid phase. For this reason, the extraction of end products requires the purification or concentration of solutions. A common treatment for liquid media is stirring in CarboTech's powdered activated carbons. It is mainly used in the final stages of purification for decolourising, removing by-products and improving taste. Typical applications are decaffeination, purification of glycerine and edible oil, and the production of fine spirits. The stir-in process is highly flexible, as it can be easily adjusted for different products and concentrations. For large product flows, like decolouration in the sugar industry, a fixed bed process is recommended, in which the process flow is guided over a layer of granular activated carbon.   
 
Waste water
Three-quarters of our Earth's surface is covered by water, but less than 1% of all the water is accessible freshwater. Keeping our water clean is vital. CarboTech provides particularly economical adsorption processes for treating industrial and municipal waste water. Even high levels of contaminants or pathogenic components can be removed. The activated carbon products used for this purpose satisfy the highest requirements in respect of the absorption capacity, and of the legally-required target values for purification or emission.

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