Below Ground Oil Water Separators
The Ecologix HQB Cylindrical Gravity Displacement Oil Water Separator will remove essentially 100% of all free and dispersed non-emulsified oil from the water stream larger than 20 microns in diameter with a specific gravity of .88 or less. The separator is designed for underground installation and will be a single wall, steel tank that is built in accordance with UL 58 and corrosion protected in accordance with UL 1746.
Below Ground Oil Water Separator Technical Features
- Plasteel Elutron Jacketed Oil Water Separators are in a unique double wall jacketed construction with 360 degree interstitial monitoring.
- Parallel corrugated plate coalescer designed to remove oil droplets greater than 20 microns with a Reynolds Number of less than 500.
- Primary tank of welded steel construction in accordance with UL 58. The steel tank is coated with FRP coating to provide exterior protection to the primary tank from underground exposure. It has been successfully tested to UL 1746 requirements for corrosion protection.
- Cathodic protection and/or dielectric isolation not required.
- HQB Oil Water Separators are versatile and can be used in many different applications.
- The Unipack cross fluted plates are manufactured of PVC, CPVC, PP, SS, or FRP.
- Fittings for vent, oil pump out, sludge pump out, gauging, and lifting lugs are included.
- Sizes available up to 2000 GPM.
Benefits of a Below Ground Oil Water Separator
- Low maintenance cost
- Easily cleaned through the removable vapor tight cover(s)
- No moving parts or consumables
- No power consumption
- No chemicals, absorbent or filter cartridges to remove, replace or dispose of
- Service & maintenance of coalescing media and removal of sludge from outside
- No confined spaces
- Shallow burial depth
Dimensional Parameters for Ecologix Below Ground Oil Water Separators
| MODEL | DIA. | LENGTH | INLET | OUTLET | FLOW RATE | TANK CAPACITY (GAL.) | OIL SPILL CAPACITY (GAL.) |
|---|---|---|---|---|---|---|---|
| HQB342 | 3' - 9 " | 6' - 0" | 4" | 4" | 20 | 400 | 320 |
| HQB548 | 4' - 0" | 6' - 3" | 4" | 4" | 50 | 600 | 480 |
| HQB1048 | 4' - 0" | 10' - 9" | 6" | 6" | 100 | 1000 | 800 |
| HQB2064 | 5' - 4" | 12' - 0" | 6" | 6" | 200 | 2000 | 1600 |
| HQB3064 | 5' - 4" | 18' - 0" | 8" | 8" | 300 | 3000 | 2400 |
| HQB4072 | 5' - 4" | 24' - 0" | 8" | 8" | 400 | 4000 | 3200 |
| HQB5072 | 6' - 0" | 23' - 10" | 8" | 8" | 500 | 5000 | 4000 |
| HQB6072 | 6' - 0" | 28' - 8" | 10" | 10" | 600 | 6000 | 4800 |
| HQB7096 | 7' - 0" | 24' - 4 " | 10" | 10" | 700 | 7000 | 5600 |
| HQB8096 | 7' - 0" | 28' - 0 " | 10" | 10" | 800 | 8000 | 6400 |
| HQB9096 | 8' - 0" | 24' - 0" | 12" | 12" | 900 | 9000 | 7200 |
| HQB10096 | 8' - 0" | 26' - 8" | 12" | 12" | 1000 | 10,000 | 8000 |
| HQB12096 | 8' - 0" | 32' - 0" | 12" | 12" | 1200 | 12,000 | 9600 |
| HQB15120 | 10' - 0" | 25' - 6" | 14" | 14" | 1500 | 15,000 | 12,000 |
| HQB20120 | 10' - 0" | 34' - 0" | 18" | 18" | 2000 | 20,000 | 16,000 |
How an Ecologix Below Ground Oil Water Separator Works
Operation
The separator is a special purpose prefabricated parallel corrugated plate gravity displacement type oil/water separator designed to remove free and dispersed non-emulsified oil and sellable solids, in accordance with API 421. The separator capacities, dimensions, and construction will be in strict accordance with UL 58, and UL 1746.
Inlet Compartment
The inlet chamber will be comprised of a non-clog diffuser pipe to distribute the flow across the width of the separator chamber. The inlet compartment shall be of sufficient volume to effectively reduce influent suspended solids, dissipate energy and begin separation. A sludge baffle will be provided to prevent settleable solids and sediment from entering the separation chamber.
Separation Chamber
The separation chamber will contain parallel corrugated plates for enhanced oil/water separation. The plates will be spaced for optimum removal of free oil and settleable solids, and the corrugations will have a 45 degree angle with respect to the horizontal. Flow through the plate pack will be in a cross-flow configuration. This allows the oil to collect and coalesce in the high points of the corrugations while the solids collect at low points. This also allows oil to rise without interfering. Plates shall be enclosed in a stainless steel frame to facilitate installation and removal.
Sludge Chamber
The sediment chamber will be located prior to the separation chamber and will provide an adequate volume and baffling for the settling of any solids.
Oil Storage Reservoir
The waste oil storage is an integral part of the separator, and has a capacity of 40 percent of the total separator volume. Oil will flow from the separator by gravity or can be pumped away when the oil water interface reaches a predetermined depth.
Clean Water Chamber
A clean water chamber which allows the water to leave the separator by gravity flow through the clean water drop tube and outlet flange will be provided.
Covers
Manways and vaults will provide access into the separator. Each access way will be provided complete with extensions, bolt down cover, gasket, and bolts.
Vents and Hold Down Straps
Sufficient size vents are provided with standard pricing. Hold down straps, if wanted, can be purchased optionally.
Performance
Most extensive performance guarantees offered in the industry. Removes free oil droplets as small as 40 microns. Reduces effluent free oil concentration to 10 PPM or less. Factory tested prior to shipment. Performance Guarantee Based on Influent Characteristics. Elutron tanks carry a (5) five year warranty on material and workmanship and (30) years against external corrosion. P.E. Stamped Calculations for Reynolds Number and Stokes Law.