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www.atea-et.com

atea specialises in the cleaning of exhaust air and waste water flows. We offer:

  • Complete process plants
  • Absorption and desorption columns
  • Rectification columns
  • Venturi and jet scrubbers
  • Laboratory gas scrubbers
  • Adsorption plants
  • Condensation plants
  • Apparatus and duct engineering

We use a variety of different processes and adapt them to the corresponding field-of-use individually. Even combinations of different processes or technologies are subject of the atea knowledge.

One of our specialities is the competent, fast and cost-effective completion of large projects with high complexity. This makes us an esteemed partner, especially for sensitive projects and processes.

NH3- and
dust-separation

In 2004 atea completed a plant with two counter-current columns for the separation of ammonia and dust particles from an air stream.

The ammonia is converted with nitric acid into ammonium nitrate and led back into the production process. That is re-use of waste material and environmental protection.

atea was a co-operation partner in the process development, managed the whole engineering (including a complete process simulation), and supervised the installation.

The columns have diameters of 2,900 and 3,400 mm, a height of 13 meters and are made entirely of high-grade stainless steel.

AsH3-, SbH3- and H2S-separation

In 2005, atea built a plant for the separation of hydrogen sulphide, arsine, and stibine from a hydrogen stream.

Arsine and stibine are treated with an oxidising agent and are converted to water-soluble substances.

atea managed the whole engineering, including a complete process simulation, and took over the production and installation of the components.

Special requirements were necessary as a result of the complexity of this demanding chemical process that takes place in a potentially explosive atmosphere.