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Emulsified
Oil and Water Separating Products
The build-up
of emulsified waste oil can contaminate aqueous cleaning
solutions. This oil can decrease the solution’s
cleaning capability. Separating oil from the water is
an effective technique for extending the usefulness
of process fluid or in pre-treating the wastewater prior
to sewering.
Conventional oil-water separation
methods, such as gravity separation and coalescence,
are generally used for mechanically dispersed oil. Typically,
emulsions formed in cleaning solutions have smaller
droplets making them more stable, and conventional removal
methods cannot split the emulsion.
Ultrafiltration and chemical treatment
are two effective separation methods. Ultrafiltration
membranes can isolate emulsified oil droplets from water.
As a result, ultrafiltration produces a reusable oil-free
solution and an oil-rich concentrate. Chemical treatment
requires adding a combination of either a salt or a
polymer with an acid to destabilize the emulsion, allowing
the oil to separate from the water. Additional separation
equipment, such as a skimmer, is used in conjunction
with emulsion-breaking chemicals.
These related reference lists are
also available from MnTAP: Coolant
Maintenance Equipment and Supplies [#4] and Centrifuge
Equipment and Services [#2].
MnTAP maintains this list of products for separating
emulsified oil and water solely as a service to Minnesota
companies. This is not a complete list of suppliers
or products and does not represent an endorsement by
MnTAP. MnTAP, by providing this list, does not represent
that the products do or do not ensure compliance with
environmental and safety laws in any specific application.
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Ultrafiltration
| Company |
Local Representative |
Notes |
Alkota
Cleaning Systems, Inc.
Alcester, SD
800/255-6823 |
American Pressure, Inc.
Wayzata, MN
952/473-8818
800/544-0836; MN only |
Portable and large-scale systems
for reuse of washwater.
|
Barnebey
Sutcliffe, a Calgon Carbon Company
Columbus, OH
800/886-2272 |
Peter Hessinger |
Units handle 100 to 60,000 gallons
per day (gpd). Membrane and centrifuge separators.
Servicing metalworking industries. |
Infinitex
Clarence Center, NY
716/741-8381 |
Peter Hassinger |
Units are available to process
more than 50 gpd standard units. Can recycle wastewater. |
KleenTec
Kleer-Flo
Albert Lea, MN
507/373-5152
800/435-5336 |
Mike Collins
Minneapolis, MN
507/383-5169 |
Batch process; 60-gallon capacity.
For washwater recycle. |
Koch
Membrane Systems, Inc.
Wilmington, MA
800/343-0499 |
Tim Jordan
248/788-0502 |
Filtration systems process over
55 gpd. Wide range of applications including cleaning
and machine fluid recycle. Recovery rates of 90-99
percent are common. |
Master
Chemical Corporation
Perrysburg, OH
419/874-7902 |
Hagemeyer North America
Minneapolis, MN
612/378-7300 |
Ultrafiltration for processing
coolants, cleaners, condensate and mop water, up
to 76 gallons per hour (gph). Also have skimmer
centrifuge and coalescing systems. |
MonlanGroup,
a division of Lafourch Mfg.
Cleveland, OH
800/493-3462 |
Gregg Miller
Hallman Oil
St. Paul, MN
651/488-7218 |
“Wastewarrior” systems
process up to 6,000 gpd of oily washwater using
skimming, settling, particle filtration and ultrafiltration
technology. “Guardian” oil separating
system available for coolant recycling or disposal.
Also have portable tramp oil systems. |
MSC
Liquid Filtration
Enfield, CT
800/237-7359 |
|
Ceramic membrane. Micro or ultrafiltration.
Processes 75 to 1,000 gpd. Designed for treating
alkaline washwater recovery. |
Siemens Water Technologies
Warrendale, PA
800/525-0658 |
Pat Ryan
St. Louis Park, MN
952/922-8890 |
Various types of gravity oil
separation filters. Nonswelling. Withstands wide
range of operating environments. Also have oil absorbing
filter. |
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Emulsion-breaking Chemicals
Beckart Environmental, Inc.
Kenosha, WI
262/656-7680
Chemetall Oakite
Berkeley Heights, NJ
800/526-4473
Fremont Industries
Shakopee, MN
952/445-4121
Nalco Chemical
Ray Rivard
Minneapolis, MN
952/435-5669
800/944-6252
Taskem, Inc.
Cleveland, OH
216/351-1500
Local representative:
W.D. Forbes Company
Minneapolis, MN
612/378-1917
More Information
MnTAP has a variety of technical assistance services available to help Minnesota businesses implement industry-tailored solutions that maximize resource efficiency, prevent pollution, increase energy efficiency, and reduce costs.Our information resources are available online. Or, call MnTAP at 612.624.1300 or 800.247.0015 from greater Minnesota for personal assistance.
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