About Sump Caisson

 Sump Caisson : 

Sump Caisson : The separation in the Sump Caisson typically occurs beneath the water surface in the engineered “plated section” and the treated water is discharged through the bottom of the caisson. The “plated section” of the Process Sump Caisson consists of a series of internal baffles that create a coalescing zone and internal oil collection system, which allows the oil droplets to be separated from the main flow regime and directed to the oil/water interface for removal.

The most effective offshore treatment systems today segregate the open and closed drains from the produced water stream. The open and closed drain streams are routed directly to the Sump Caisson for treatment, while the produced water system consisting of Deoiler hydrocyclones, and Dissolved Gas Flotation units are routed separately to the Sump Caisson for final disposal.The Sump Caisson has internal plates (baffles) with oil risers for the most efficient separation performance. The Sump Caisson is typically designed with a retention time of minutes with a removal efficiency ranging from 50-100 microns pending on disposal requirements.

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