Waste Water Treatment

Among the wide range of physical, chemical and biological processes used in waste water treatment, activated carbon adsorption is gaining steadily in importance. The use of activated carbon is especially advisable in cases requiring the removal of toxic substances or pollutants that are not easily biodegradable.

Activated carbon is almost always employed in the treatment of waste water in the paper, textile and petrochemical industries.

In practical situations, it is rarely possible to identify the components of mixtures contained in waste water. Consequently, such non-specific parameters as the following are used to determine pollution levels:
  • TOC (dissolved organic carbon), DIN EN 1484
  • COD (chemical oxygen demand), DIN 38409 Part 41/43
  • AOX (absorbable organic halogens), DIN EN 1485
As impurities found in waste water exhibit widely differing adsorption behaviour, tests must be performed for the purpose of obtaining data for adsorption system design and the selection of the most suitable type of activated carbon.
Donau Carbon offers a wide range of powdered and granulated Hydraffin products for the various water and waste water treatment applications. 

Recommended AC Qualities:
Hydraffin 30 N (granular)
Hydraffin P 800 (powdered)
Hydraffin PR (powdered)
Carbopal AP (powdered)

Further technical documents and samples are available on request.