Cover. Pressure Filters

Transcription

1 Cover Pressure Filters

2 Pressure Filters Pressure Filter Applications WesTech 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 piping, 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. Drinking Water Municipal Water Treatment Iron and Manganese Removal Arsenic Removal Groundwater Under the Influence Pretreatment to Reverse Osmosis Granular Activated Carbon Fluoride Removal Ion Exchange 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. Industrial Industrial Process Water Treatment Cooling Tower Make-up Surface Water Treatment Pretreatment to Reverse Osmosis Plant Process Water Granular Activated Carbon

3 Complete Systems 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. Direct Filtration Oxidant Coagulant Polymer Aeration / Detention / Filtration Pretreatment Followed by Filtration Pretreatment to Reverse Osmosis

4 Vertical Pressure Filters 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. Media Options: 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. Dual Media: Anthracite and sand are commonly applied in municipal and low 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.

5 Overdrain Options Single Point Four Point H Style Combined Air Water Underdrain Options Flat Plate False Bottom Header and Lateral Conical Bottom

6 Horizontal Pressure Filters 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 backwashing. 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. Media Options: Dual Media: Anthracite and sand are commonly applied in municipal and low 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.

7 Overdrain Options Combined Air Water Header and Lateral Orificed T Pipe Underdrain Options Arched Plate False Bottom Header and Lateral

8 Lab and Pilot Services WesTech 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. Other WesTech Products Screening Gravity Filters Flocculators Oil / Water Separators Grit Removal Digester Covers Inclined Plate Clarifiers Paste Thickeners Clarifiers Dissolved Air Flotation Package Plants Tankage and Erection Thickeners Gasholders Ultrafiltration Membranes Parts and Field Service Solids Contact Clarifiers Continuous Backwash Filters Vacuum Filters Laboratory Testing Call for your Pressure Filter needs. North America Tel: Fax: info@westech-inc.com P.O. Box 65068, Salt Lake City, Utah South America Tel: (11) Fax: (11) katia@westech.com.br Rua da Consolação 1025, 5o Andar Consolação - São Paulo - SP China Tel: Fax: info@westech-china.com Suite 17-11, Wangfujing Building B, Shapingba, Chongqing , China South Africa Tel: Fax: mark@westech-inc.co.za P.O. Box 1848 Honeydew, 2040 Represented by: WesTech Process Equipment. Process Driven. WesTech Engineering, Inc. 2010