Overview
How the DNAPL™ Oil Water Separator Works
The ER-DN-SS is constructed of stainless steel with special baffles, a V-shaped hopper, and weirs to direct flow, skim oil, remove DNAPL, and control liquid levels in the separator. The stainless steel coalescing media is oleophilic: oil coalesces and rises to the surface where it is removed via the adjustable skimmer, while DNAPL descends to the bottom and is discharged through the hopper.
The separator removes DNAPL contaminant and all non-emulsified oil from waste water with a minimum of suspended solids, producing an effluent with less than 10 mg/l of oil droplets larger than 30 microns. Separated oil discharges through a nozzle, DNAPL discharges through the bottom of the V-shaped hopper, and water discharges through the effluent chamber.
Key Specifications
| Construction | Stainless steel |
| Coalescing Media | Stainless steel, oleophilic (Dense Pak) |
| Effluent Quality | <10 mg/l oil droplets >30 microns |
| Flow Options | Gravity flow, pump flow, lift over cover |
Applications
- Ground water remediation
- Contaminated potable water
- Industrial process water
- Petrochemical
- Power generation
- Heat treatment
Compare models
Your selection is highlighted. Select a row to switch.| Part Number | Flow Rate (GPM) |
|---|---|
| ER-82002DN-SS | 2 |
| ER-82004DN-SS | 4 |
| ER-82008DN-SS | 8 |
| ER-820016DN-SS | 16 |
Questions, answered
How fast will I get a price?
Send the quote request and a specialist replies within 4 business hours, Monday to Friday, 8:00 to 4:30 ET.
Can we pay on account or by purchase order?
Yes. With established credit, terms are Net 30 days, and you can send your purchase order with the quote request. We also accept Visa, Mastercard and American Express.
How is shipping charged?
On quotes and account orders, freight is F.O.B. Montréal: the carrier charge is worked out at shipment from the packed weight and dimensions, and added to your invoice. In-stock items can also be picked up the same day in Montréal (8605 rue du Champ-d'Eau).
Can I return it?
Yes, within 30 days of purchase, with a return authorization number from customer service first. A 25% restocking fee applies, unless it is a defect covered by the warranty. Special orders, hazardous materials, flammable liquids and gases can't be returned. Return policy
Related equipment we stock

EvacuSol™ 10 HP — Soil Treatment System
Vacuum pump: 10 HP | Mounting: skid-mounted (forklift/crane) | Scale: full-scale / production SVE | Condition: new

EvacuSol™ 2 HP — Soil Treatment System
Vacuum pump: 2 HP | Mounting: skid-mounted, portable | Scale: small-scale / pilot SVE | Depth: shallow to moderate

OlioSep™ DNAPL 3-Phase Separator
Models: 16 / 24 / 50 GPM | Construction: 304 SS (316 optional) | DNAPL: conical hopper bottom | Media: hexagonal coalescer

BioVent™ Soil Biopile Treatment Systems
Transfer Pump: 10 GPM | Main Vacuum Gauge: 0–60" H2O | Inlet/Outlet: 8" / 6" | Control: NEMA 4, CSA approved