We destroy organic chelates for an easy elimination of metals!

We eliminate organic chelates in wastewaters in a way that dissolved metals can be precipitated in the existing wastewater treatment process.

By this pretreatment new processes can be introduced by the client avoiding huge investments in the waste water facility.

Typical applications are:

  • Electroless copper (bath and waste water) - EDTA, trartrate, ...
  • Electroless nickel (bath and waste water) - citrate, tartrate, lactate, ...
  • TSAA - waste water and bath - tartrate
  • Zinc-nickel-waste water and carbonate freezings - aminopolycarboxylate, EDTA, EDA, PETA, ...
  • Waste water containing phosphonates - polyphosphonates

The units can be designed as batch or continuous processes. The process is chosen to be as economical as possible.

Applying "electroless nickel" not only enables the destruction of chelates but also reduces phosphorous oxides like hypophosphite. 

Orthophosphite can be oxidized to phosphate, which can then easily be precipitated.

By doing so, legal limits of phosphate are respected.

Degradation of organic chelates