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What are the ACO oil/water separators used for?
ACO oil separators are used for removal of light liquids (hydrocarbons, mineral oils, fuels, etc.) from polluted water. The light liquids gravity specific gravity need to be below 0.95 g/cm3; the light liquids must not be dissolved or emulsified.
Where are the separators commonly used?
The ACO separators are often used in facilities where vehicles are being stored and serviced such as car dealerships, bus garages, service garages, fire stations, hangars, and also in gas stations, vehicle washing facilities or industrial processes where oil spills from equipment occurs.
Can these products be used in a commercial kitchen or food processing facility?
No, products for this purpose would be called grease separators and are very different than oil separators.
Can ACO oil separators be used in vehicle washing stations where soaps are used?
Yes, however, the soaps used need to be specially formulated, separator friendly, that do not emulsify oils into very fine particles that cannot be gravitationally separated from water.
Does ACO comply with most municipalities requirements for maximum oil content in water discharged to sewer systems?
The common municipal requirement in terms of pre-treatment performance is maximum 10 to 15 mg/L light liquids in discharged water. ACO oil separators maximum light liquids content in effluent water is under 5 mg/L in all situations.
Why is the ACO separator equipped with an automatic shut-off valve?
The automatic shut-off valve is an environmental safety device. In the eventuality in which an operator does not carry regular scheduled maintenance on the equipment, the valve will close the outlet pipe when maximum oil storage capacity is reached. This prevents oils being discharged into environment or sewer sytem and forces the operator to take remediation measures.
How often is the scheduled maintenance needed and what does it imply?
The scheduled maintenance requires the operator to remove the coalescence unit every 4 to 6 months and clean it with cold water, free of soaps and not pressurized. Once every 12 months, the separator needs to be completely emptied and washed inside – this must be done by a service provider licenced to handle hazardous waste liquids.
What information is needed in order to design a proper separation system?
Information needed is as follows:
- Required effluent quality
- Emulsification of the oils
- Estimated maximum flow of water that needs to be treated.
- Estimated amount of solids in the treated water
- Nature of liquids that need to be separated.
- Is the separator going to be positioned in a pedestrian only are or vehicles will drive over the cover?
- Approximate invert depth for the inlet pipe.
What can be done if the flow to be treated is larger than the maximum flow of one unit?
Two separators connected in a series is possible. The connections should be made in such a way to split the flow in two equal parts. If the flow is too large for such a solution, contact ACO for further information.
Are any vents required for the ACO Oleopator P separator?
Yes; ACO recommends one vent per tank. However, some plumbing codes or municipal regulations require minimum two vent pipes per one tank. Always follow the most stringent requirements.
Is there an alarm system available for the ACO separators?
Yes, alarm systems with oil layer thickness sensor, liquid level sensor and solids level sensor are available. Alarm systems for un-manned remote locations are also available – the signal is sent via GSM to a cell phone or email address.
Is there a required concrete surround for the ACO Oleopator P separator?
No, concrete is not required; however, compacted and approved backfill needs to be used around the tank and access shaft. A reinforced concrete load distribution plate is required under the cover when the separator is used in a vehicular traffic location.
Tel: (520) 421-9988
Fax: (520) 421-9899
Tel: (440) 639-7230
Toll free: (800) 543-4764
Fax: (440) 639-7235
Toll free: (800) 543-4764
Fax: (803) 802-1063