Processes
Desorption
Desorption is a particularly advantageous process, as the contaminant is passed from the liquid phase into the gas phase. The contaminated outlet air is then cost-efficiently subjected to an additional treatment in a separate purification stage.
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.
Biological purification
Biological purification is a basic method of municipal wastewater treatment but is also often used in the remediation of contaminated groundwater.
Biological purification uses the natural metabolic pathways of microorganisms to convert pollutants into harmless products such as carbon dioxide and water.
ion exchange
Ion exchange allows the selective removal of dissolved ions from the aqueous phase. In practice, ion exchange is used in particular for binding heavy metal ions.
Removes Arsenic
Unlike the more complex precipitation and flocculation methods or the rather expensive ion-exchange technique with its limited selectivity for pentavalent arsenic, Harbauer presents a new and intriguingly simple adsorption technique for the removal of arsenic from ground and drinking water.
Waste gas catalysis
Waste gas catalytic processing makes it possible to clean up contaminated areas which formerly used to be left polluted or whose cleanup proved to be too costly. Where the soil is contaminated with vinyl chloride, catalytic combustion plants are the only way to remove the pollutants.