Case study: Power Generation Station in Germany 

The site aimed on reducing its environmental footprint and improving its sustainability measurably. For this purpose a Capterall® installation was implemented in 2018


Context – Micro pollutants (metals, heavy metals, PAH…) in industrial water targeted

Heavy metals consequences on public health

Heavy metals remain a major challenge for all industries. These contaminants are invisible to the naked eyes. They are transported by water and accumulate in the environment and living organisms, in the worst case causing poisonings or other serious diseases.

Customer Site needs: reducing Hg, Cd, Ni, and Cu emissions

The gas washing of the wet-scrubbers used in the manufacturing process produces  wastewater. The customer site plant’s main contaminants present in the water are metallic contaminants, including Mercury (Hg), but also others such as Cadmium (Cd), Nickel (Ni), and Copper (Cu). Additionally, other contaminants such as Polyaromatichydrocarbons (PAH) in solid and dissolved forms have also been identified.


Capterall® installation set up in 1,5 months and showing great results

Capterall instalaltion by night 2

Successful lab test and product adaptation

Before constructing the industrial installation, the Capterall® team conducted a full audit of the current plant to understand its needs and local regulations. After running successful lab tests, the product and process were scaled-up to operate on a mobile unit onsite. After the successful onsite trials that validated operational parameters, our Capterall® Team was able to design and build the industrial wastewater treatment plant.

Low CAPEX and easy installation

Before adopting Capterall®, the customer site tested other finishing solutions like an Activated Carbon Filter (ACF) However, estimated bigger operating costs due to clogging by dust or suspended solids resulting in regular operational interventions led to its non-selection.

One of the main success factors of Capterall® is its versatility that allows to treat a large set of pollutants and be inserted as the finishing step in most types of treatment plants - all of this with only low investment.  


Requirements of the legislation:

According to the “Ordinance on Requirements for the Discharge of Waste Water into Waters” by the Federal Ministry for the Environment, Nature Conservation and Nuclear Safety of Germany, the limitations are set as above:

  • Hg < 1ppb
  • Ni and Cd <5ppb
  • Cu <10ppb

The Hg peaks range between 10 to 50 ppb and are reduced below 1 ppb by Capterall® in a reliable manner. 

Although there is no imposing regulation for PAH, some German local authorities in DE are already demanding viability and technical studies for current stations in order to comply with future regulations.


Capterall Testimonial

“What is special compared to other products is the wide range of applications. Even for different kinds of pollution, with different kinds of challenges, we are able to develop a “tailor-made” solution.”

Karl Rüdiger, Capterall business development engineer