When using polymer in a DAF unit, what % solids recovery should the operator expect?

In a Dissolved Air Flotation (DAF) unit, the use of polymer is crucial for enhancing the separation of solids from liquids. The primary function of polymer in this context is to agglomerate the fine particles, which increases their size and buoyancy, allowing them to float more effectively to the surface for removal.

The expected solids recovery percentage of 90-98% is indicative of optimal performance when polymer is used correctly. This high recovery rate is achievable due to the polymer's ability to significantly enhance the flocculation process, leading to better coalescence of particles and their subsequent removal during operation. This level of efficiency is essential for maintaining compliance with discharge standards and improving overall treatment efficacy in wastewater processing.

Achieving recovery in this range signals that the DAF unit is performing effectively, which is critical for facilities focused on maximizing solids removal and minimizing environmental impact.