Treat rinse water and wastewater from surface treatment lines.
Water treatment chemicals for surface treatment and plating plants: pH adjustment and neutralisation, heavy-metal precipitation, coagulants and flocculants, chromium(VI) reduction and cyanide treatment.
Products
We supply the chemicals for these processes; series names and technical data are shared per application.
pH adjustment and neutralisation
Acids and alkalis that bring acidic and alkaline rinse water to the pH needed for treatment and discharge.
Heavy-metal precipitation
Precipitants that turn dissolved metals such as zinc, nickel and copper into insoluble solids that can be separated.
Coagulants and flocculants
Coagulants that destabilise fine particles and flocculants that gather them into flocs that settle or filter easily.
Chromium(VI) reduction
Reducing agents that convert hexavalent chromium in rinse water and spent solutions to trivalent chromium, which can then be precipitated.
Cyanide treatment
Oxidising agents that destroy cyanide in rinse water and spent solutions before the metals are precipitated.
Process families
- pH adjustment and neutralisation
- Metal precipitation
- Coagulation and flocculation
- Cr(VI) and cyanide treatment
What we discuss with you
- Wastewater streams on the line: acid and alkaline, chromium-bearing, cyanide-bearing, metal-bearing
- Discharge limits that apply to the site
- Existing treatment plant, dosing and sludge handling
Substrates
Discussed per application
Used in
Automotive
Films, corrosion and wear coatings, fasteners and decorative finishes.
Construction
Paint pre-treatment, hydraulic rods, fasteners, window fittings.
Aerospace
Corrosion resistance, wear resistance and paint adhesion.
Sanitary ware
Durability, differentiation and cleanability on visible surfaces.
Furniture & domestic
Appearance, corrosion resistance and easy-to-clean surfaces.
Share the part, the substrate and the specification — our technical team comes back to you.