A gulf coast refinery expansion required additional wastewater treatment capacity to handle higher flows and pollutant loads. A custom Monroe API Oil Water Separator was selected to provide primary oil/water and solids separation prior to downstream biological treatment.

Monroe engineers worked closely with the plant’s consulting engineers to design a custom solids removal system which had no moving parts and thus reduced the potential for costly shutdowns and emergency repairs.

Scope of Supply included:

• Separator tank and elevated support legs
• Vapor tight cover with connections for explosion relief and nitrogen blanketing vents
• Inlet flow diffusors
• Solids collection with no moving parts
• Oil skimming and collection
• Access platform with stairs

The API Separator was designed to treat 2,500 GPM.