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June 30, 2021
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FABRICATION: The clarifier/separator is a special purpose prefabricated inclined plate and parallel corrugated plate, rectangular, gravity displacement, type unit. The clarifier/separator shall be comprised of a tank containing an inlet compartment, sludge chamber, a separation compartment, and clean water outlet chamber.

TANK:  The tank shall be a single wall construction of 11 gauge stainless steel conforming to ASTM A240, type 304 stainless steel. Welding will be in accordance with AWS D1.1 to provide a watertight tank that will not warp or deform under load.

PIPE CONNECTIONS: All pipe connections 3” and smaller are FNPT couplings. All connections 4“ and larger are flat face flanges with ANSI 150 pound standard bolt circle.

LIFTING LUGS:  The tank shall be provided with properly sized lifting lugs for handling and installation.

COVERS:  The tank will be provided with vapor tight covers for vapor control. Gas vents and suitable access openings to each compartment will be provided. The covers shall be constructed of marine grade aluminum and will be fastened in place. A gasket shall be provided for vapor tightness. 3/8-16 bolts and threaded knobs will be provided for cover attachment.

INLET COMPARTMENT & INCLINED PLATES:  The inlet chamber shall be comprised of a non-clog diffuser to distribute the flow across the width of the chamber. The inlet compartment shall be of sufficient volume to effectively reduce influent suspended solids, dissipate energy and begin separation. The inclined plates will sit elevated on top of a sludge chamber. As the water moves upwards the suspended particles have their upwards velocity interrupted by the inclined plates. These particles drop down and slide down the inclined plate and join larger previously settled particles in sludge hopper. The sludge compartment will be provided to retain settleable solids.

SEPARATION CHAMBER:  The oil separation chamber shall contain HD Q-PAC Coalescing Media containing a minimum of 132 square feet per cubic foot of effective coalescing surface area. The medias needle like elements (plates) shall be at 90 degrees to the horizontal or longitudinal axis of the separator. Spacing between these elements shall be spaced 3/16” apart for the removal of a minimum of 99.9% of free droplets 20 micron in size or greater. The elements are positioned to create an angle of repose of 90 degrees to facilitate the removal of solids that may tend to build up on the coalescing surfaces, which would increase velocities to the point of discharging an unacceptable effluent.

Laminar flow with a Reynolds Number of less than 500 at a maximum designed flow rate shall be maintained throughout the separator packed bed including entrance and exit so as to prevent re-entrainment of oils with water. Flow through the polypropylene coalescing media shall be crossflow perpendicular to the vertical media elements such that all 132 square feet/cubic foot of coalescing media is available for contact with the coalescing surfaces.

None of the coalescing media surfaces shall be pointing upward so as not to be available for contact with the cross-flowing oily water. The media shall have a minimum of 87% void volume to facilitate sludge and dirt particles as they fall off the vertical elements and settle in the sludge compartment. The media when installed in crossflow OWS shall meet US EPA Method 413.2 and also European Standard 858-1.

BAFFLES:  The tank shall be provided with an oil retention & underflow weir, and overflow weir. The underflow weir will be positioned to prevent re-suspension of settled solids.

SLUDGE CHAMBER:  The sludge chamber shall be located prior to the coalescing compartment for the settling of any solids. It shall also prevent any solids from entering the clean water chamber.

OIL SKIMMER:  The clarifier compartment and the oil separation compartment will be provided with rotatable pipe skimmers for gravity decanting of the separated oil to a product storage tank.

CLEAN WATER CHAMBER:  The tank will be provided with a clean water chamber which allows the water to leave the separator by pumped flow through the clean water outlet port.

VENTS: 2″ vents will be provided for vent piping to atmosphere.

PUMP TRANSFER SYSTEM:  The system is provided with either an electric powered or air-powered diaphragm transfer pump. Electric motor can be 110V/240V/480V. Pump is installed near the SPT system. A screen should be placed on the pump intake to reduce the amount of solids entering the system.

PUMP CONTROL PANEL:  The control panel for the pump will be housed in a NEMA-4X enclosure. The controls may include a Main Disconnect Switch, an Emergency Stop switch, a Manual/off/auto pump switch, 24-volt control relay, Circuit Breaker, motor contactor and overload, and Green run, red fault panel lights.  It may be UL certified, if needed.

OPTIONAL POLISHING PACK:  A final water polishing pack with a stainless steel flow dissipator plate and oil absorbent bags may be provided with the system if local municipalities have sewer effluent requirements.

OPTIONAL OZONE SYSTEM:  The system may be provided with an ozone generator to reduce odors.

SPT Specifications Size Chart

  SPT-10 SPT-20 SPT-30 SPT-50 SPT-75 SPT-100
Flow Rate 1-10 GPM 1-20 GPM 1-30 GPM 1-50 GPM 1-75 GPM 1-100 GPM
Tank Capacity 300 Gal 652 Gal 645 Gal 968 Gal 1419 Gal 1931 Gal
Sludge Volume 27 Gal 27 Gal 45 Gal 85 Gal 85 Gal 85 Gal
Ozone Generation Optional Optional Optional Optional Optional Optional
Product Tank 40 Gal 40 Gal 40 Gal 75 Gal 75 Gal 75 Gal
Polishing Pack Optional Optional Optional Optional Optional Optional
Approx. dimensions, FT 3’W x 8’L x 5’H 4’W x 8.5’L x 6’H 4’W x 9’L x 6’H 4’W x 9.75’L x 6’H 4.5’W x 10’L x 7’H 5.3’W x 10.5’L x 7.3’H
Construction Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel Stainless Steel

June 24, 2021
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CF-CP Media (Cross-Flow/Corrugated Plate) Oil Water Separator Media
Introduced a new coalescing media with a corrugated, cross-flow design.

In many washing applications, huge volumes of solids are generated during the washing process. This is especially true in the construction and mining industries. Some of the heavier solids drop out of suspension quickly while others get entrained in the oily wastewater.

To insure our oil water separators do not clog in these high solids washing applications, we have developed a new corrugated plate coalescing media with a cross-flow design.

This new media design is a series of plates curved in a simple wave shape. As the water enters the separator, the flow is directed evenly across the surface of the media plates. The solids are captured and fall to the trough area of the corrugated plates below and the oils rise and stick to the trough area of the plates above.

The separator design maintains laminar flow throughout the media so the oil and solids do not remix. Separated oil flows upwards along the plates to the top of the separator where it can be removed and solids slide down the smooth corrugated plates to the hopper area where they can be easily removed.

  • Available in stainless steel, PVC, HPVC and polypropylene
  • Plate spacing of ½”, ¾” or 1 ¼” depending on application
  • Supplied in blocks for easy installation and removal

By coupling high efficiency separation with easy maintenance of this new media, you will ensure your oil water separator operates at peak performance in high solids applications.

Give us a call at 800-453- 8639 for more information!

CF-CP Media (Cross-Flow/Corrugated Plate) Oil Water Separator Media
Site View of our new coalescing media with a corrugated, cross-flow design.

June 15, 2021
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In some applications, a higher efficiency media is required for environmental concerns. This media uses its high surface to volume ratio to provide extremely efficient oil/ water/ solids separation.

This media is constructed of oleophilic coalescing plates arranged in a cross-fluted configura­tion that provides between 31–69 square feet of oil coalesc­ing surface and 7–17 square feet of solids settling area per cubic foot of media. Each plate has a series of angled ribs, which are sloped from the bottom of the separa­tion chamber to the top at a 60° angle establishing a com­pound inclined surface.

  • Available in stainless steel, PVC, HPVC, polypropylene and stainless steel
  • Vertical slant rib plate spacing of ½”, ¾” or 1 ¼” with slant ribs alternating direction by 90°
  • Supplied in 1’ cubes with optional stainless steel frames for easy installation and removal

The separator and media design maintains a sinusoidal laminar flow throughout the media so the maximum amount of oil separation is achieved. Coalesced oil can flow unimpeded along the plate surfaces to the top of the separator where it is easily removed.

Give us a call at 800-453- 8639 for more information!


June 10, 2021
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Our standard media has vastly superior properties compared to the traditional media used in oil-water separators. These properties result in a more efficient and effective separation than that attained by traditional coalescing media.

  • A larger amount of surface area per cubic foot of media allows for greater oil drop coalescence. This media has 132 ft2/ft3 surface area for oil droplets to contact. Other typical coalescing media have about 48 ft2/ft3 to 68 ft2/ft3.
  • A more efficient first step separation reduces the need for a second polishing step. Our media removes 99.9% of oil droplets 20 microns in size and larger. This meets EPA Method 1664 Revision A and European Standard EN 858-1.
  • An open design eliminates trapping of particles and subsequent clogging of water channels. Oil water separators with this media require fewer maintenance shut-downs and separates oil and water faster.
  • Where higher-than-normal operating temperatures are required, our media outperforms its competitors. It works effectively in temperatures up to 212°F, versus a maximum temperature of about 120°F for competing media.

Give us a call at 800-453- 8639 for more information!


January 25, 2021
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Even though the terms “Oil Interceptors” and “Oil Water Separators” are often used
interchangeably, they are very different systems.

Interceptors

Oil interceptors
Oil interceptors are designed for use in drain lines where oils, sediment and other liquids are intercepted.

Oil interceptors are typically used in low flow drain lines where small quantities of oils, sediment
and other liquid contaminants can be “intercepted”. These drain lines may come from variety of
facilities including covered parking garages, machine shops, service stations, and manufacturing
facilities.

Usually constructed of steel, fiberglass or plastic, interceptors are simple systems which include a
baffle plate, a solids bucket, and a separation area. As the water enters the interceptor, a baffle
plate reduces the flow and turbulence of the incoming water which helps to drop out some solids
and sludge.

A low flow rate and little turbulence permits the oils and other light density to slowly separate from
the water and rise to the top of the separation area. From there, relatively oil-free water is
discharged to the sewer.

Oil Water Separators

In comparison, Oil Water Separators have a far more sophisticated and efficient design. They are used in higher volume applications such as industrial wash operations, parking lots, re-fueling facilities and military installations where there is a potential for a much higher volume of water, oil, and contaminants.

The standard oil water separator is a steel or stainless steel tank containing an inlet compartment, baffles system, sludge chamber, separation chamber with coalescing media, and clean water outlet chamber.

The water enters the inlet compartment where the oil separation process begins. Here, baffles slow down the water flow which causes some of the solids to drop out of suspension. Next, parallel corrugated coalescing media in the separation chamber cause the oil droplets in the water to coalesce together, and increase in size until they separate from the water. This coalescing media, with an internal structure of interconnecting channels, can remove essentially all free and dispersed, non-emulsified oils to an effluent concentration of less than 5 ppm – which is acceptable for discharge to most municipal sewer systems.


January 21, 2021
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Problem: A facilities manager with a national maintenance company called looking for a corporate solution for their wash pads. They were expanding into several new markets and wanted to standardize their washing and water treatment systems.

Complications included the fact that most of their vehicles are sweeper trucks which generate a lot of solids. A typical wash yields 1/3 yard of solids. With each facility washing 10+ units per day, the amount of solids generated per month was substantial. Also, each facility has a slightly different layout. The good news was that most of them were connected to the municipal sewer.

Solution:  Since their solids handling issues needed to be addressed in addition to their washing and water treatment issues, we offered our engineering services to help them design a custom solution that they could standardize as much as possible for their wash bays and solids settling basins.

Once we completed the design, we recommended a number of washing and treatment options based on their desired washing processes.  Due to the fact that they had a variety of vehicles and equipment, they decided on both a demucking system and pressure washing system for washing. The demucking system was paired with a partial water reclaim system to recycle the water multiple times before the water was sent through our SPT-20 Clarifier Oil Water Separator System to process it for acceptable discharge to the sewer.

Finally, all of the equipment was installed in a TER-20 Transportable Equipment Room. This will save installation costs as well as allow the customer to move the equipment to a different location in the future. It also saves space inside of the customer’s building for other critical activities.

 


November 16, 2020
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For over 30 years, we have custom-engineered and built cleaning and pumping systems based on our customer’s individual specifications and site-specific needs.

By integrating a range of pumps, tanks, and control systems, custom systems can be built to meet specific design and output requirements for virtually any low, medium or high pressure cleaning or pumping application.

If you think you have a unique application, let us design a unique system for you.  Here are some of the interesting projects we have already tackled:

  • Electrically heated aircraft de-icing systems for use on regional jets
  • Air-driven and electric-driven pumping packages for high pressure injection and drill bit cooling in underground mining applications
  • Integrated, variable volume pumping packages for use with water soluble cutting oil on CNC machines
  • High volume, high pressure pumping packages for use on egg carton extrusion presses
  • High pressure, low volume pumping packages utilizing hot and cold de-ionized water for automated printed circuit board cleaning systems
  • High pressure systems for cleaning with heavy water in nuclear reactors
  • High pressure, high volume pumping packages for de-watering in sewage treatment plants
  • Automated pumping packages utilized in precooked shell fish cleaning systems
  • Electrically heated systems for high pressure cleaning with peanut and vegetable oils in food grade applications
Custom Engineered Cleaning & Pumping Systems
Custom Engineered Cleaning & Pumping Systems
Custom Engineered Cleaning & Pumping Systems
Custom Engineered Cleaning & Pumping Systems

October 28, 2020
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During the winter as winter storms approach, many municipalities will spread salt directly on the roads.  Additionally, many have started to proactively apply what are called anti-icing fluids to prevent water from forming frost on the pavement surface. Whether anti-ice or deicing fluids, they all share the same basic chemistry, which is some form of salt.  The formulations include sodium chloride, calcium chloride or magnesium chloride. Additionally, the anti-icing fluids often include organics such as beet juice or cheese whey.

This presents a unique issue for winter washing operations, especially when closed loop wash water treatment systems are employed.  Closed loop wash water treatment systems are used in a variety of instances including no access to public sewer systems, unreasonable permitting issues associated with sending water to the sewer, and uneconomic costs to tie into a sewer system due to the distances.

When cars and trucks are driving on roads coated with either deicing or anti-icing fluids, the vehicle’s body will often become covered with a thin coating of salts.  During typical washing operations, the salt is flushed off.  If the wash bay is connected directly to a sewer, that salty water is diluted and simply sent to the city without issues.  However, if the wash system is connected to a closed loop system where that water is used over and over, the salt levels will continue to rise in the wash waters. This leads to the salt being reapplied to the vehicle, which show up as salt streaks when it is dried. But more important than the streaks, the salt residue enhances the corrosion process on the metal.

There is no simple or inexpensive way to remove salts from wash waters. One option is to haul off or send a portion of the salt contaminated water to a city sewer.  Another option is to use a thermal evaporator to continually evaporate a small amount of the water in the closed loop system’s volume so that fresh water can be added.  Periodically, the concentrated water and salt mixture in the evaporator would also have to be hauled off.  The evaporation process will reduce the total volume of waters to be hauled off, and hence, reduce the hauling cost. The third option is to use a membrane filtration system.  However, this method is expensive and not at all well suited to process waters contaminated with dirt, dust, cleaning chemistries, and oils.

The salt in the waters also has implications for the components of wash water treatment systems. Although our oil water separator system is constructed of 304 stainless steel, salts in the water may attack the welds in the unit and accelerate the corrosion process.  Additionally, salts will attack pump shafts and cause the seals to leak.  If this happens, the only solution is to change the pump.

To combat the effects of corrosion, we offer various levels of corrosion protection to our clients. For our oil water separators, we offer an internal coating which forms a tough barrier that protects the stainless steel from the salt.  For our other treatment systems, we can upgrade the pumps from carbon steel to a salt resistant 316 stainless steel, which will prevent any pitting of the shafts and pump internals.  We can also add a conductivity meter to continually monitor the amount of salts and other chemicals in the water and trigger an alarm when the levels rise too high.  Once this water is pumped out or discharged, fresh water is automatically added to the system, diluting the salts to a manageable level.


North Carolina

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At WashBaySolutions.com, we have been specializing in high tech, custom-engineered solutions to complex washing and wastewater issues since 1991.
+ 1 800-453-8639

WashbaySolutions.com

sales@washbaysolutions.com

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