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Pressure Filters
Cover
Pressure Filters
Pressure Filter Applications
Drinking Water Iron and Manganese Removal
Arsenic Removal
Groundwater Under the Influence
Pretreatment to Reverse Osmosis
Granular Activated Carbon
Fluoride Removal
Ion Exchange
Industrial Cooling Tower Make-up
Surface Water Treatment
Pretreatment to Reverse Osmosis
Plant Process Water
Granular Activated Carbon
Pressure FiltersWesTech has been designing and supplying pressure filtration systems for more than 35 years in both the industrial and municipal markets. This broad experience base translates into extensive process knowledge that offers the best of both worlds, a robust filter which can operate in the harshest environments while consistently producing the highest water quality demanded by drinking water standards.
WesTech offers standards for both stand-alone and skid-mounted systems. In either case, the system pip-ing, valves, controls, and instrumentation should be supplied by WesTech to maintain unit responsibility. As with all WesTech equipment, customization to your specific needs is our focus.
Municipal Water Treatment
Industrial Process Water Treatment
Your application requires a properly sized pressure filter and the right combination of media, overdrain, underdrain, and backwashing sequence. Allow WesTech’s knowledgeable engineers to help select the right configuration and components for your project.
Direct Filtration
Aeration /Detention / Filtration
Pretreatment Followed by Filtration
Pretreatment to Reverse Osmosis
Oxidant
Coagulant Polymer
Pressure filters operate under the same principles as gravity filters, with a few distinct advantages — namely, no re-pumping after filtration, overcoming high headloss, and allowing for longer periods between backwashes. WesTech takes a holistic approach to filtration by offering a complete system.
Complete Systems
Media Options:Dual Media: Anthracite and sand are commonly applied in municipal andlow turbidity applications.
Deep Bed Dual Media: Anthracite and sand are commonly used for arsenic removal.
Greensand™ or Technagreen™: Commonly used for manganese removal.
Deep Bed Coarse Media: Commonly applied in industrial and wastewater applications.
Granular Activated Carbon: Commonly used for adsorption applications, ie., taste, odor, TOC, SOC.
Activated Alumina: Commonly used for arsenic and fluoride removal.
Strong Base Anionic Resin: Commonly used for hardness removal.
Vessel Housing:Standard vertical pressure filters are available in diameters ranging from 5’ to 12’ with varying side shells. Vessels are built per ASME code and can be designed with operating pressures ranging from 50 psi to 300 psi. Media, overdrains, and underdrains are selected based on your application and system.
Vertical Pressure Filters are typically applied in small to medium sized plants. Individual, parallel operating vessels satisfy redundancy requirements and offer a modular design that is easily expanded with increasing water demand. Vertical Pressure Filters are ideally suited for deep bed filtration, ion exchange, and adsorptive medias such as GAC and activated alumina.
Vertical Pressure Filters
Overdrain Options
Underdrain Options
Flat Plate False Bottom
Four Point H Style
Header and Lateral
Single Point
Conical Bottom
Combined Air Water
Horizontal Pressure Filters with multiple filter cells offer an economical design for medium to large flows. Multiple cells within a horizontal unit allow for self-generating back-washing. A self-generating backwash simply means that multiple cells in forward filtration produce the backwash water, which is fed directly into a single cell in backwash. This configuration eliminates the need for backwash supply pumps and large volumes of backwash water storage.
Standard horizontal pressure filters are available in diameters from 8’ to 12’ and lengths ranging between 15’ and 50’. Vessels are built per ASME code and designed with operating pressures ranging from 50 psi to 300 psi. Media, overdrains, and under drains are selected based on your application and system requirements.
Horizontal Pressure Filters
Media Options:Dual Media: Anthracite and sand are commonly applied in municipal andlow turbidity applications.
Deep Bed Dual Media: Anthracite and sand are commonly used for arsenic removal.
Greensand™ or Technagreen™: Commonly used for manganese removal.
Deep Bed Coarse Media: Commonly applied in industrial and wastewater applications.
Overdrain Options
Underdrain Options
Combined Air Water
Header and Lateral
Header and Lateral Orificed T Pipe
Arched Plate False Bottom
© WesTech Engineering, Inc. 2010
WesTechProcess Equipment. Process Driven.
Represented by:
Call for your Pressure Filter needs.North AmericaTel: 801.265.1000Fax: [email protected]. Box 65068, Salt Lake City, Utah 84165-0068
South AmericaTel: (11) 3129-5226 Fax: (11) [email protected] da Consolação 1025, 5o Andar Consolação - São Paulo - SP - 01301-000
ChinaTel: 86 236 541 6377 Fax: 86 236 540 9075 [email protected] 17-11, Wangfujing Building B, Shapingba, Chongqing 400030, China
South AfricaTel: 011 794 5205Fax: 27 11 [email protected]. Box 1848Honeydew, 2040
Screening
Grit Removal
Clarifiers
Thickeners
Solids Contact Clarifiers
Gravity Filters
Digester Covers
Dissolved Air Flotation
Gasholders
Continuous Backwash Filters
Flocculators
Inclined Plate Clarifiers
Package Plants
Ultrafiltration Membranes
Vacuum Filters
Oil / Water Separators
Paste Thickeners
Tankage and Erection
Parts and Field Service
Laboratory Testing
Other WesTech Products
Lab and Pilot ServicesWesTech offers a holistic approach to filtration systems and can provide multiple process solutions for your specific application. Based on extensive experience, laboratory testing, and field pilot plant studies, WesTech can help select and offer the best process option to meet your needs.
