Removing ammonia from wastewater

Wastewater, both industrial and municipal wastewater, often contains high concentrations of ammonia (NH3). Ammonia can be removed using the stripping method. This involves stripping wastewater with air in an NH3 stripping tower.

How can ammonia (NH3) be removed from wastewater?

Ammonia can be removed from wastewater using a method consisting of two steps: stripping and absorption. In the first step, ammonia is stripped from the water in an NH3 stripping tower. Such a stripping tower is very similar to the gas scrubbers used in the off-air treatment of industrial emissions. An NH3 stripping tower is a packed column (equipped with internals and packing), very similar to a chemical scrubber. Preheated ammonia-containing water enters the stripper at the top. Here it comes into contact with a stream of air and ammonia is removed from the water. The treated water is collected at the bottom of the stripper. The ammonia-loaded air leaves the stripper and is treated in the NH3 absorber.

In the absorber, the ammonia-containing gases are treated with acid to absorb the ammonia. The outgoing gases are recirculated across the absorber, resulting in a decrease in energy costs. In addition, this method does not use steam, resulting in additional savings.

TASK proves time and again that we take all constructions and placements very seriously by meeting the required standards and obtaining the necessary certificates. We are therefore the right partner for carrying out your installation.

A circular story

This stripper technology fits perfectly within the circular economy. Energy costs are lower since the gases are recirculated across the absorber.

Moreover, the end product, a concentrated salt solution, can also be used as a fertilizer. Therefore, this circular technology fits fully into the cradle-to-cradle principle.

 

Advantages of ammonia (NH3) stripper absorber technology

  • lower operating cost
  • no steam required

How do we work?

When you contact us for a problem with water, we will work with you to determine the nature of the contamination.

We take the necessary measurements and tests.

We propose a customized solution.

We install and commission the system.

We provide the necessary maintenance afterwards or train maintenance personnel on site.

If the source of pollution changes (e.g., due to changes in the production process), we optimize the wastewater treatment plant as needed.

Physico-chemical water treatment

Water Treatment

Water reuse

Oil separators

Jet aeration

Agitators

Membrane techniques

Test installations

Optimisation and renovation