How the OlioSep™ DNAPL 3-Phase Separator Works
Influent enters the upper inlet chamber where flow is stilled by a diffuser plate. In the main settling chamber, light NAPL rises to the surface and is continuously skimmed through an adjustable weir to a dedicated oil collection port. The middle aqueous phase passes through high-efficiency hexagonal coalescer media to accelerate fine droplet separation, then exits via the mid-level effluent outlet.
Dense non-aqueous phases settle into the conical hopper bottom and are drawn off through a dedicated bottom port — either continuously via an interface-controlled transfer pump or periodically by the operator. Sight glass ports and high-level / oil-thickness float switches provide interface monitoring throughout.
Key Specifications
| Model | Flow | Dimensions (W × L × H) | Inlet |
|---|---|---|---|
| ER-DN-16 | 16 GPM | 30" × 58" × 66" | 3" |
| ER-DN-24 | 24 GPM | 36" × 68" × 72" | 3" |
| ER-DN-50 | 50 GPM | 54" × 84" × 84" | 4" |
Dimensions are approximate. Custom flow rates and footprints available. Contact ERE engineering for site-specific sizing.
Options
- 316 stainless steel construction
- Integrated control panel
- Explosion-proof electrical (Class I Div 2)
- Multiple side-port configurations
- Removable hinged access lid
Applications
- Pump & treat systems
- Chlorinated solvent plumes (TCE / PCE)
- Coal tar & creosote sites
- Former manufactured gas plants
- Refinery groundwater treatment
- Dry cleaner site remediation
- Free product recovery wells
- Industrial spill response
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