What is an industrial oil skimming system?
An industrial oil skimming system combines the oil skimmer with
additional equipment required for the application, such as
oil-water decanting, recovered-oil storage, transfer pumping,
controls, enclosures, mounting or mobility.
What is the difference between ORTS, ESS and a Mobile Oil Skimming System?
ORTS is designed around integrated oil recovery, decanting,
storage and transfer. ESS is designed around an enclosed,
protected tank or manway installation. Mobile Oil Skimming Systems
are designed so one recovery package can be moved between multiple
oil-skimming locations.
When should I choose ORTS?
ORTS should be considered where recovered oil needs to be
skimmed, decanted, stored locally and transferred to another
vessel or collection point as one integrated process.
What is the published ORTS oil-removal capacity?
Oil Skimmers currently publishes an overall ORTS oil-removal
capacity of 4–200 US gal/h (15–757 L/h). Final performance
depends on the skimmer configuration, oil and operating conditions.
When should I choose ESS?
ESS is particularly suitable where the oil skimmer must be
enclosed for weather protection, harsh environmental conditions,
controlled access, tank or manway integration or vapour containment.
Can ESS be sealed for VOC containment?
Yes. Where required by the application, the ESS enclosure can
be completely sealed and gasketed to contain volatile organic
compounds and other process vapours.
What is the published ESS oil-removal capacity?
The current manufacturer ESS page publishes an oil-removal
capacity of 4–100 US gal/h (15–379 L/h). The Model 6V is the
standard skimmer in the System Core and Model 7V is also available.
When does a Mobile Oil Skimming System make sense?
A mobile system is useful when several pits, tanks, sumps or
ponds require periodic oil removal but the amount or frequency
does not justify installing a permanent skimmer at every location.
What mobile oil-skimming configurations are available?
Oil Skimmers publishes Cart Mounted, Pallet Mounted and Mobile
Skimming Station configurations. The appropriate system depends
on how the equipment needs to move and the size of the recovery duty.
Can the mobile system include recovered-oil storage?
Yes. Larger Mobile Skimming Station configurations can incorporate
a recovered-oil collection tank and transfer equipment. Manufacturer
configurations include collection tanks from 300 to 2,000 US gal
(approximately 1,136 to 7,571 L).
Do these systems work with changing liquid levels?
Tube-type configurations use a free-floating collector tube that
follows changes in the liquid surface. The tube length, mounting
geometry and system configuration must still accommodate the
required operating range.
Can a complete oil skimming system operate automatically?
Depending on the selected system, controls can incorporate
skimmer operation, transfer pumping, timers, tank-level switches,
heating and other functions. The required automation should be
defined during system engineering.
Is an oil skimming system the same as an oil-water separator?
No. An oil skimming system primarily removes free-floating oil
from the liquid surface and may then handle the recovered oil.
An oil-water separator is intended to treat an oily-water stream
through a dedicated separation process.
Can the Tube Test Kit be used before selecting a complete system?
Yes. For suitable tube-skimming applications, collector-tube
pickup can be evaluated using the actual oil and process liquid
before the final ORTS, ESS or Mobile System configuration is selected.
Can these systems be used in European hazardous areas?
Potential hazardous-area applications require an application-specific
review. US descriptions such as explosion proof should not
automatically be interpreted as European ATEX compliance.
Motors, pumps, controls, heaters and the complete system must
match the actual European site classification and applicable requirements.
What information is needed to select an oil skimming system?
Useful information includes oil type, liquid temperature,
oil accumulation rate, pit or tank dimensions, liquid-level range,
debris conditions, storage requirements, transfer distance,
mounting access, enclosure requirements, mobility requirements,
electrical supply and any hazardous-area classification.