Salher Optimises Its Xcorpio DAF System for High-Flow Applications

The third improvement concerns the polyelectrolyte preparation system. This reagent is used in coagulation and flocculation processes to promote particle aggregation and improve subsequent separation.

Salher has optimised this system to enable continuous flocculant preparation, avoiding stoppages and downtime associated with its preparation. As a result, the system can operate continuously, provided that operating conditions and the other plant systems allow it.

This optimisation is particularly relevant for high-flow applications, where operational continuity is essential to maintaining treatment throughput and coordinating the different stages of the process.

Xcorpio: Dissolved Air Flotation for High-Flow Applications

Xcorpio DAF technology removes fine suspended solids and floating substances, such as oils and grease, by attaching air microbubbles to the particles. These rise to the surface, where they can be easily removed.

The equipment features a body made of glass-reinforced polyester (GRP), a stainless steel structure, an internal layout with separate channels and chambers, and a lamella pack designed to enhance process performance. Its surface scraping system removes accumulated floating matter, while automation facilitates control of the different operations.

With appropriate wastewater conditioning and a configuration tailored to each application, Xcorpio can achieve removal efficiencies of 85–95% for suspended solids, oils and grease; 60–80% for chemical oxygen demand (COD); and 50–80% for five-day biochemical oxygen demand (BOD₅).

With these improvements, Salher continues to optimise its dissolved air flotation solutions to meet the needs of high-capacity treatment plants, simplifying equipment operation and promoting continuity in wastewater treatment processes.