Our project portfolio of successfully implemented projects

Reference Project – Wastewater Treatment in Metal Surface Finishing

In industrial metal surface treatment—particularly in processes such as electrolytic zinc plating, hot-dip galvanizing, pickling, phosphating, and coil coating —complex wastewater streams with varying contaminant loads are generated. These contain , among other things , oils, hydrocarbons, and phosphate-containing compounds, which require efficient and reliable treatment.

To ensure the safe and efficient treatment of this wastewater, a custom-designed, turnkey system for physical-chemical wastewater treatment was implemented.

Task

Design, delivery, and commissioning of a system for treating industrial wastewater with the following requirements:

• Removal of oils and hydrocarbons
• Reduction of phosphate-containing ingredients
• Ensuring stable and cost-effective plant operation
• Treatment of up to 40 m³/h of wastewater

Solution & implementation

To meet these requirements, a multi-stage treatment plan was implemented, consisting of:

1. 
   Light Liquid Separator For the preliminary separation of free oils and hydrocarbons
2. Precipitation and Flocculation
   Chemical conversion of dissolved substances into separable flocs
3. 
   Inclined Clarifier (Lamella Separator) Efficient solid-liquid separation through sedimentation of the formed flocs

By combining these process steps, a reliable and robust treatment solution for the complex wastewater streams was successfully implemented.

Sustainability & Efficiency

The facility was designed with a particular focus on sustainability and resource efficiency:

• Optimized chemical usage through tailored dosing concepts
• Reduced energy consumption through efficient process management
• High separation efficiency combined with a compact design
• Minimizing waste and sludge volume

As a result, the facility makes an important contribution to environmentally sound and sustainable wastewater treatment in the metalworking industry.

Technical Highlights

• Combination of physical and chemical treatment
• Efficient pre-separation of light liquids
• Reliable floc formation for optimal sedimentation
• Lamella separator with high specific separation efficiency
• Compact and modular design

Conclusion

This project has delivered a high-performance and cost-effective solution for treating challenging industrial wastewater. The combination of proven process technology and a customized design ensures stable operation while delivering high treatment efficiency.

We would like to thank you for the excellent and constructive collaboration and are pleased to have successfully completed this project.