Client Background: Car manufacturer in Mexico
Application: Sludge dewatering
Our Solution: A 55 cubic foot, 1000mm filter press with semi-automatic plate shifter, automatic pump control system and drip trays. Completely assembled and ready for installation on a concrete pad.
Client Background: Customer provides water treatment solutions for companies in the oil and gas, pipeline and construction industries.
Application: Remove oils and solids from a waste stream.
Our Solution: A complete turnkey mobile DAF system, including feed pumps, a Chemical Addition System, transfer pumps, Inline Mixing System, Dissolved Air Flotation clarifier, effluent holding tank, and effluent transfer pumps. System also includes Class I, Div. II motors and control panel.
Client Background: Aluminum can manufacturer
Application: Remove organic contaminants from water
Our Solution: A complete turnkey system including dual water softener systems, dual activated carbon skids, dual deionization skids and a series of cartridge filters. System is fully automated.
• Water softening to remove minerals that cause hardness and to prevent lime scale build-up.
• Activated carbon to remove odor and organic contaminants.
• Deionization for removal of unwanted impurities.
• Cartridge filters to capture trace suspended solids and as polishing step.
Westlake Environmental has been awarded a contract to provide a complete wastewater system to a packaging company in Weston, Ontario Canada.
Client Background: Specialty packaging customer including metal closures.
Problem: Elevated levels of oils and solids in the water from their machining operation.
Our Solution: A complete turnkey system will be supplied to remove the oils and solids from their waste stream. The system includes Oil Water Separators to remove oils and Chemical Addition Systems, Inclined Plate Clarifiers, and Neutralization Tanks to remove the solids. Also included are holding tanks, mixers, pumps and level controls to fully automate the system.
The Westlake Environmental Inclined Plate Clarifier (IPC) is the ideal tool to quickly remove suspended solids from a waste stream. Unlike conventional clarifiers Westlake Environmental uses a series of inclined plates creating a large settling area within a comparative small footprint. The inlet stream is stilled upon entry into the clarifier. Solid particles settle on the plates and rapidly descend into a collection hopper at the bottom of the clarifier. The sludge is drawn off at the bottom of the hoppers and the clean water exits the unit at the top over a weir. By altering the plate spacing (to allow for different solids loading ratios, settling rates, etc.), the Westlake Environmental IPC is able to solve a wide variety of water treatment issues.
Construction of a Westlake Environmental IPC is offered in A36 carbon, 304 and 316 stainless steel materials. Plate pack is offered in polypropylene, 304 and 316 stainless steel materials. Plate spacing ranges from 1” to 2”, 1” is standard.
The Westlake Environmental IPC performance can be improved by the addition of flocculants and coagulants. These additives optimize the settling process which results in a higher purity effluent due to the capture of smaller micron solids. A further advantage of the Westlake Environmental IPC is its distinct absence of mechanical moving parts. The system therefore requires no energy input so there is no opportunity for mechanical failure, which is paramount from a service and maintenance standpoint. This advantage extends to safety considerations when choosing the right equipment.
Westlake Environmental has been awarded a contract to provide a complete wastewater system to a railcar cleaning facility in East Chicago, IN.
Client Background: Customer specializes in tank and hopper railcar cleaning.
Problem: Customer has elevated levels of emulsified oils and solids in the water.
Our Solution: A complete turnkey system is to be supplied to remove the emulsified oils and solids from the waste stream. The system includes an Emulsion Cracking System, Chemical Addition System, Dissolved Air Flotation clarifier, polyethylene holding tanks, mixers, pumps, level controls and a NEMA 4X control panel. Westlake Environmental is partnering with a general contractor to supply a turnkey system.
Client Background: Customer specializes in Metal Finishing, Zinc, Zinc-Cobalt, Tin, Phosphate and Passivating.
Problem: Customer had elevated levels of metals in the wastewater and was exceeding city discharge limits.
Our Solution: An Inclined Plate Clarifier (IPC) with 440 ft2 of effective settling area, constructed in carbon steel material. Successfully allowing them to meet the city discharge requirements.
Client Background: Customer offers a line of lubricants, chemicals and fuels.
Problem: As a supplier of lubricants, chemicals and fuels, they generate wastewater with high levels of oils and grease. To meet the city’s required discharge limits, an Oil Water Separator (OWS) was designed to remove oils and grease.
Our Solution:
Project: Frac Application, Austin, TX
Client Background: Customer provides water treatment solutions for companies in the oil and gas, pipeline and construction industries.
Problem: Customer contacted Westlake Environmental regarding a frac application that had elevated levels of suspend solids in the water. A 1,000 GPM wastewater system was provided to reduce the TSS in the water prior to discharge.
Our Solution:
The Westlake Environmental OWS (Oil Water Separator) is designed based on Stoke’s law, which basically states the larger the oil droplet, the quicker it will rise in water, see figure 1 below. Westlake Environmental uses a special coalescing media that when placed in the flow path of oily water, the oil droplets collide with each other, grow in size and quickly rise to the water surface. This technology allows for a separator that is ½ the volume and as little as 1/5 the length of straight
gravity separators.
Stokes Law Equation: Vt = [(g)(ρw– ρo)(d²)] / [(18*μw)]
Where:
Vt = the rise rate of the oil droplet (cm/s or ft/sec)
g = acceleration due to gravity (cm/s² or ft/s²)
ρw = density of water at the design temperature (g/cm³ or lbm/ft³)
ρo = density of oil at the design temperature (g/cm³ or lbm/ft³)
d = oil droplet diameter (cm or ft)
μw = absolute viscosity of the water (g/cm•s or lbm/ft•s)
Oil Water Separation Process: 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.
Removal Efficiencies: The model OWS will coalesce and remove non-emulsified, free and dispersed fats, oils and grease from a waste stream to produce a clean water effluent of 10 ppm or less of non-emulsified oils.
This proven design has made the Westlake Environmental OWS a preferred tool for Engineers, Contractors and End Users. Call today for more information on the Westlake Environmental Oil Water Separator.