Oil Water Separator: Industrial Wastewater Treatment Equipment

April 26, 2026

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Oil water separators are essential for removing free oil and grease from industrial wastewater before biological treatment.

Types of Oil Water Separators

API Separators

American Petroleum Institute design. Uses gravity separation with long retention time. Handles high oil loads.

CPI (Corrugated Plate Interceptor)

Inclined plates increase effective settling area. More compact than API. Better for lower oil concentrations.

Enhanced Gravity Separators

Coalescing media enhances droplet collision and separation. High efficiency in compact design.

Design Parameters

  • Surface overflow rate (SOR): 20-40 m³/m²/day
  • Oil droplet size: >150 micron for gravity separation
  • Retention time: 20-40 minutes
  • Temperature considerations

Applications

  • Petroleum refining
  • Petrochemical plants
  • Metal machining and finishing
  • Food processing
  • Transportation maintenance

Feiran EP Oil Water Separators

We manufacture API, CPI, and enhanced gravity separators for all industrial applications.

Email: sale@yixingenviroequipment.com

Oil Water Separator: Industrial Wastewater Treatment Equipment