Sour Water Treatment

Sour Water Treatment

Sour Water Treatment

Sour water is a waste product from refineries and must be treated before it can be reused or released into the environment.

Typically, sour water has a high alkalinity and is contaminated with sulphides as well as oil, phenols, BTEX, and PAH.

The ABCAN Filtration System can remove all of these contaminants in situ. It has proved itself to be more cost effect than other available technologies.

How Does It Work?

Initially Hydrochloric acid (non-fuming) is introduced via a static mixer to reduce the pH to 9 or less.

Secondly the fluid is filtered through two separate filter units. These contain our own specifically produced filter media which are impregnated with a surfactant that removes oil (including dissolved oil), PAH and BTEX.

An additional proprietary media can be used to remove Phenols if required.
The final stage is to use neutral Fenton’s reagent to oxidise the Sulphides to elemental Sulphur.

The elemental Sulphur is then filtered out using a self-cleaning filter.

The ABCAN system is designed to be fully automated with minimal manual input.


ABCAN provides sour water filtration equipment for hire along with chemical testing, system design expertise, media supplies and ongoing technical support for each project.

Key Advantages

  • Remove dissolved as well as free oil.
  • Remove Hydrogen Sulphides.
  • Removes PAH, BTEX and Phenols.
  • Automated system with minimal manual input.
  • Small footprint.
  • High throughput.
  • More cost effective than other methods.
  • Can be adjusted to meet specific discharge or reuse requirements.

Filtration Unit

Additional Waste Water and Sludge Treatment

ABCAN can treat or remove various chemicals and contaminants including:

  • Hexavalent Chrome (Chrome vi)
  • Oils
  • Cyanide
  • Iron (and Iron Cyanide)
  • Zinc
  • Nickel
  • Copper
  • Magnesium
  • Potassium
  • Lead
  • Radioactive Material
  • Mercury
  • Ammonia
  • Phosphate
  • PAHs
  • PCBs
  • BTEX
  • We can treat waste with emulsions and reverse emulsions

To find out more about how ABCAN can assist you to treat your Sour Water,
please contact us on