EnviroChemie GmbH

- Continuous Wastewater Neutralisation

Givaudan, whose headquarters are in Switzerland, is the global market leader in the field of flavours and fragrances. At its German production site in Dortmund, it produces and sells flavourings and ingredients for the food industry as well as fragrances aimed primarily at the perfume and cosmetics industry.

This site required a new automatic continuous neutralisation plant for treating the wastewater generated within the context of production and cleaning as a result of the cleaning processes used for the exhaust air as well as the tanks and floors.

The wastewater generated in this way is contaminated by water-soluble organic compounds (organic acids such as acetic acid, citric acid).

The contract included:

  • Permit planning for construction and operation of the neutralisation plant including applying for a discharge permit pursuant to section 58.2 of the state water act and the ordinance on indirect dischargers
  • Supplying the new pre-separators plus wastewater storage and emergency overflow tank featuring tank aerator designed specifically to cope with the quantities of wastewater involved
  • A plant room in the form of a prefabricated concrete garage with integrated continuous neutralisation plant
  • A stacker-compatible changeover station for the neutralising agent

Performance data
Quantity of wastewater     Max. 300 m³ per day (max. 50 m³/h)
Chemical contamination     pH value 2.0 - 12.0
Temperature     Max. 60° C (when it enters the pre-separator)
Technical data
Required space     Approx. 45 m2
Control     PLC, process visualisation

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