APPLICATION:  Inclined Plate Clarifier (IPC)

An additional six (6) Inclined Plate Clarifiers shipping to the same customer!

Customer has purchased this same style tank in the past, and continues to purchase this style because of the robust design and ease of maintenance.  All Westlake Environmental equipment ships complete, pre-tested and ready for installation.  These particular tanks are manufactured in 316 stainless steel material and include an interior/exterior coating system per customer’s request.

What is a Filter Press?

WHAT IS A FILTER PRESS AND HOW DOES IT WORK

The Westlake Environmental Filter Press (FP) is a fixed volume, batch pressure filter that separates liquids and solids.  A set of filter plates with clothes are sandwiched together in series. Once the plates are compressed together hydraulically, sludge is pumped into the center of the filter plates with all chambers being filled simultaneously.  The solids are retained on the filter clothes, which act as a depth filter for liquid/solid separation, while clean fluid (Filtrate) travels thru to the discharge manifold and exits the press.  When the filter plates are full, the cycle is complete, and the filter press is opened to discharge the solids off each plate.

WHAT’S INVOLVED

The filter press consists of a head and follower that contain a series of plates that are supported by side bars or overhead beams. The head serves as a fixed end to which the feed and filtrate pipes are connected.  The follower moves along the side bars and presses the plates together during the filtration cycle by a hydraulic or mechanical mechanism. Each plate includes filter cloth on both sides and, once pressed together, they form a series of chambers. The plates have a centered feed port that passes through the entire length of the filter press so that all the chambers of the plate pack are connected together. Likewise, four corner ports connect all the plates and collect the filtrate in a “closed discharge” towards outlets that are located on the same side as the feed inlet.

Contact Westlake Environmental for more information at 616-610-1450 or at sales@westlakeenv.com.

What is a Chemical Addition System?

GENERAL INFORMATION

The Westlake Environmental Chemical Addition Systems (CAS) are designed to thoroughly mix a chemical recipe to establish coagulation, flocculation, pH adjustment or metals precipitation, depending on the application.  We design and manufacture a complete line of systems to meet your needs.

OPERATION

Raw water enters the Chemical Addition System where chemicals are fed and thoroughly mixed in each chamber prior to discharge.  Each chamber includes a chemical pump, mixer, and pH probe.  A control panel is also provided to fully automate the system, requiring minimal operator interface.  Equipment is completely assembled and tested prior to shipping, ready for installation on a concrete pad.

TERMS

Coagulation: Gelling or lumping of particles, typically a colloid, to form a pin floc. In Coagulation a chemical is added that produces positive charges to neutralize the negative charges. The particles then stick together, forming larger particles that are easier to remove via settling or floating.
Flocculation: A process similar to coagulation but differs in that it is used as a complimentary step to develop an even larger, robust particle. Flocculation is almost always used in conjunction with and preceded by coagulation. The process is generally accomplished by slow mixing to allow the particles to come into contact with one another and bind, enhancing the settling or floating process.
pH Adjustment: pH is the measure of the acidity or alkalinity of a solution. A pH of 7 is neutral; 0-7 is the acidic range and 7-14 is the alkaline range. pH adjustment is required for a variety of applications such as metal precipitation, correcting pH for polymer and coagulant use, emulsion breaking and pH adjustment prior to city discharge.
Metals Precipitation: Most common metals that are dissolved in a waste stream can be precipitated from their ionic state by raising the pH. Once the metals precipitate and form solids, they can easily be removed by float or settling methods.

Westlake Environmental manufactures a complete line of Chemical Addition Systems.  Contact Westlake Environmental for more information at 616-610-1450 or at sales@westlakeenv.com.

What is an Emulsion Cracking System?

GENERAL INFORMATION

The Westlake Environmental Emulsion Cracking System (ECS) is highly efficient in removing free, dispersed and emulsified hydrocarbon products from a waste stream.  The model ECS is a modified Oil Coalescing Separator that includes a chemical treatment step both upstream and downstream of the separator for removal of emulsified oils.  Lowering the pH of the incoming water destabilizes the petroleum hydrocarbon oil water ionic bond, allowing the oil to become free. The free oil is then removed in the oil coalescing chamber of the ECS tank.  The system is completely integrated, and skid mounted.

OPERATION

The three-stage treatment system is complete with gravity flow through a single skid.  The system includes chemical feed systems, mixers, pH controllers and controls for all mechanical devices.  Raw water enters the initial chamber of the ECS where a pH adjustment and/or an emulsion breaking chemistry are added and mixed to break the emulsions.  Oil/water separation begins in this chamber. Water leaving the initial chamber continues to the Oil Coalescing Separator portion of the tank where the free oil coalesces and is removed.  Clean water continues to the final chamber where the pH is neutralized prior to discharge.  Operation is completely automatic and requires only periodic calibration and check to ensure proper operation.

Contact Westlake Environmental for more information at 616-610-1450 or at sales@westlakeenv.com.

What is a Dissolved Air Flotation Clarifier?

Westlake Dissolved Air Flotation (DAF)

GENERAL INFORMATION

The Westlake Environmental Dissolved Air Flotation (DAF) clarifier is a very versatile and effective tool for cleaning industrial wastewater. It efficiently removes suspended solids, oil and grease, metals as well as the suspended biological oxygen demand (BOD) and chemical oxygen demand (COD) from a waste stream. Removal rates in excess of 95% are common. Some installations report 99.9% FOG and TSS reduction.

Westlake Environmental utilizes the latest design features and technologies to provide the best DAF on the market.  We offer high-performance systems that range from 5 GPM to over 3,000 GPM in a single DAF unit.

The Westlake Environmental DAF systems are specifically designed utilizing inclined plate technology and can be used to treat waste streams in both primary and secondary applications.  The inclined plate design allows for the utilization of effective surface area to significantly increase the hydraulic capacity of the DAF system.   The DAF is compact in size relative to the amount of flow it can treat. Designed to handle both floating and settling solids effectively, the DAF utilizes a unique skimmer design that is reliable, robust and virtually maintenance free. The system is simple to use and requires little maintenance.

Contact Westlake Environmental for more information at 616-610-1450 or at sales@westlakeenv.com.

What is an Inclined Plater Clarifier?

Westlake Environmental Inclined Plate Clarifier

GENERAL INFORMATION

The Westlake Environmental Inclined Plate Clarifier (IPC) is designed for settling solids and precipitated metals. One of the more desirable features of the IPC is its compact design. The units easily fit in tight locations with low ceiling height and do not require expensive access platforms for maintenance. With proper chemical pre-treatment, the suspended solids in the effluent are often less than 10 mg/L.

The 55-degree inclined plates are slick UV stabilized polypropylene sheets assembled in bundles with stainless steel rods, PVC spacers and fasteners. The plates are locked in at the proper angle and spacing by a unique design that provides both strength and rigidity. The plate packs are designed to be cleaned in place, so maintenance is minimal. Sizes are available from 5 GPM to 1,100 GPM.

OPERATION

The raw water enters the IPC inlet chamber and is immediately dispersed through a non-clog diffuser across the width of the clarifier, which reduces velocities and turbulent flow, and begins the settling process. The flow leaves the inlet chamber under a weir that directs the flow evenly under the plate pack for heavier solids settling. Fines in the water then begin a vertical path through the plate pack and stop their vertical motion, fall downward to the plate surfaces beneath them and descend into the sludge chamber. Clean water flows upward along the bottom of the plates into the effluent chamber prior to discharge via an effluent flange.

Contact Westlake Environmental for more information at 616-610-1450 or at sales@westlakeenv.com.

What is an Oil Water Separator?

Westlake Oil Water Separator (OWS)

GENERAL INFORMATION

The Westlake Environmental Oil Water Separator (OWS) is a most efficient tool for removing non-emulsified (free and dispersed) oils and grease from a wastewater stream that may also contain up to 300 ppm of solids. The coalescing media is configured to allow the oils to rise to the surface and cascade into an isolated oil chamber, while the solids settle into the sludge chamber to be isolated from the flow.

The model OWS will coalesce and concentrate 20 micron and larger free fats, oils and grease from water to produce a clean water effluent of 10 ppm or less free oil. The concentrated oil will have less than 5% water. The separators can be installed above, flush or below grade and can operate by gravity or pumped feed, depending on the application.

OPERATION

The wastewater enters the OWS influent chamber via a non-clog, energy dissipating baffle that distributes the flow across the width of the coalescing pack. The separation chamber has a Westlake Media Bundle that is filled with oleophilic media that insures collision of the oil droplets, which become larger and quickly float to the water surface. As the oil layer reaches a given height on the water surface, it decants into an integral oil reservoir. The bundle is also designed such that solids will separate and settle into the sludge collection chamber. Clean water flows under a baffle and over an adjustable 304 stainless steel weir into the effluent chamber. Liquid level in the separator is determined by the height of the adjustable weir. The clean water exits the effluent chamber through an outlet flange. Sectionalized, gasketed covers are provided to allow easy access to the separator internals.

Contact Westlake Environmental for more information at 616-610-1450 or at sales@westlakeenv.com.

EQUIPMENT:  Control panels

Westlake Environmental specializes in control panels, NEMA 4, NEMA 4X, explosion proof NEMA 7.  Upper photo is a NEMA 4X electric panel in 304 stainless steel material for a Dissolved Air Flotation (DAF) system.  The lower photo is a NEMA 4X pneumatic panel in fiberglass, for the same DAF system.   

APPLICATION:  Spare parts – Air Diaphragm pump skids.

Customer has ordered two additional pump skids due to lengthy lead times.  Each skid includes:

  1. Air Diaphragm Pump, 1” in size, compatible with users waste stream.
  2. Pumps are mounted to 304 stainless steel skids, liftable via forklift.
  3. Air assemblies include a ball valve, filter/regulator, needle, and solenoid valves.
  4. Air source and piping are all that are needed for quick installation.

APPLICATION:  Chemical Addition System (CAS) shown – Railroad application.

Customer washes down their locomotives to remove grease and grit, which are taken out of the waste stream using an Oil Water Separator (OWS), followed by a Chemical Addition System (CAS) and a Dissolved Air Flotation (DAF) unit.  You can see the part of the Oil Water Separator to the right of the CAS tank.  System is in the installation process and includes:

  1. OWS tank to remove oils and grease, with automation to control a sludge and oil pump.
  2. CAS tank adjusts the pH of the water and establishes a large floc particle prior to the DAF.
  3. DAF tank to remove solids and further remove oils via a floating process.
  4. All tanks are in 304 stainless steel material with covers to contain vapors.
  5. Complete system provided.
  6. Start-up service included.