Configurations

Best-in-class configurations optimize functionality while putting your aeration where it's needed.

Our FlexAir Disc, Tube, and Panel diffusers are available with the appropriate system configuration for optimized functionality.

EDI has engineered several effective configurations to fit the specific needs of our customers. Some examples of common configurations are detailed below.

Fixed Grid

When you know the right answer, you don’t need multiple choice. That’s the philosophy behind EDI Aeration fixed grid configurations: engineer the best answer once, make it easy to implement, and count on your aeration for life™.

ModulAir

Floating retrieval lines enable the self-contained assemblies to be craned out for inspection and maintenance. Dedicated supply lines and ballasts are built right into the assemblies, as is the pipe on which diffusers are directly mounted.

Streamline

StreamLine™ is EDI’s ‘Patented’ configuration with unmatched system simplicity; results: up to 33% reduction in system installation time compared to competing panel systems. Plus, membrane replacement can be completed in the field.

 

Features
  • Superior energy savings
  • Improved system reliability
  • Ease of installation & maintenance
  • Long service life
Industrial Configurations

We know you can’t just take a municipal solution and use it in all industrial applications. Industrial wastewater treatment must be specific to the wastewater effluent quality for each application. For this reason we conduct and participate in industrial testing programs and studies. This leads to the innovations in configurations and material type. Use our 45+ years of experience to your advantage and save time and money. 

Fixed Grid

A fixed grid may be a common configuration, but open-heart surgery is common, too 

Trust your surgeries to surgeons…

and your fixed grid configuration to EDI’s specialized engineers who can tailor it to your specific application.

EDI fixed grid configurations are floor-mounted and ideal for concrete basins and steel tanks. Because they don’t move, they can support the highest-density applications in both municipal and industrial systems.

Fixed Grid Configuration

Advantages:

  • EDI’s aeration engineers optimize designs for max long-term value and reliability
  • Offers full range of membranes, diffusers, and materials for drop pipes, headers and laterals.
  • SuperStrut™ (EDI exclusive plastic pipe-support) adjusts quickly, replacing time-consuming (and often unsafe) metal wiggle-wire install used by rest of the industry.
  • No-slip joints are used to minimize wear and need for frequent replacement

Compatibility:

Fixed Grid configurations are compatible with:

… And are useful for

What a Fixed Grid Does

Installs easily once, stays engineered forever.

When you know the right answer, you don’t need multiple choice. That’s the philosophy behind EDI Aeration fixed grid configurations: engineer the best answer once, make it easy to implement, and count on your aeration for life™.

EDI Fixed Grid Piping Systems are ideal for conventional tank applications where access to the reactor for installation and system maintenance is available. The system is engineered for maximum long-term economic value and reliability, is based on design methodologies and system components specifically developed to meet customers’ needs, and is customized for each application.

The airflow requirement for each pipe section is evaluated and the appropriate pipe size is selected for low head loss. This helps ensure uniform air release between diffusers and a low system operating pressure. There is no size limit on drop and header sections. Distribution laterals for the DISC System option are commonly 3 inches (90 mm) and 4 inches (110 mm), though other sizes are available. Distribution laterals for the TUBE System option are available from 3 inches (90 mm) to 8 inches (160 mm).

What a Fixed Grid Delivers

Floor-mounted configuration that supports the highest-density applications

Available with FlexAir™ Disc, Tube, Panel, and Streamline™ diffusers. 

Fixed Grid Disc System
  • Factory manufactured components with flanged mechanical connections for ease of installation
  • No size constraint on drops and headers, nominal 3” (90 mm) and 4” (110 mm) for distribution laterals
  • Accommodates variable water level applications
  • Fixed pipe joints for increased service life and simple maintenance
  • Stainless steel supports standard for header sections, and glass-filled polypropylene
  • SuperStrut™ supports standard for distribution laterals
  • Compatible with all pipe materials and wall thicknesses for heat resistance, chemical resistance, or when maximum durability is desired.
Fixed Grid Tube System
  • Factory manufactured components with fixed mechanical connections for ease of installation
  • No size constraint on drops and headers, 3”– 8” and 90mm –160mm for distribution laterals
  • Uses no slip joints that are subject to wear and replacement, increasing service life
  • Permanently anchored to reactor floor; stainless steel supports standard
  • Stainless steel drop pipe and rigid PVC header and lateral standard; alternate materials (ABS, CPVC, and Stainless Steel) and wall thicknesses available for heat, chemical resistance, or when maximum durability is desired
Fixed Grid Curve Panel System
  • Fits 4”, 6”, 8”, 110 mm and 160 mm air piping—plastic or stainless steel
  • PVC construction for maximum chemical & UV resistance, and optional CPVC for maximum temperature resistance
  • NanoPore™ and MicroPore™ perforation options available to match oxygen transfer, airflow and operating pressure requirements
  • Simplex (single-arm) and Duplex (two-arm) configurations possible
    Horizontal projected diffuser area for maximum OTE performance. System geometry supports high-density installations of over 65% (up to 80%) floor coverage
  • Non-buoyant & cantilever design for reduced stress on mounting connections and for water cooling

Want to know what an EDI Fixed Grid configuration could do for you?

Submit your RFP today and our on-staff professional engineers can help you size and design a coarse-bubble aeration and treatment upgrade to meet your wastewater treatment requirements.

ModuleAir Retrievable Configurations

O&M made easy.

Diffusers that can be maintained when they need it make for

systems that work even amidst the toughest conditions.

When accessibility for inspection and maintenance is the priority and reactors cannot be drained, the ModuleAir™ retrievable diffuser system is the solution.

Floating retrieval lines enable the self-contained assemblies to be craned out for inspection and maintenance. Dedicated supply lines and ballasts are built right into the assemblies, as is the pipe on which diffusers are directly mounted.

ModuleAir-Specific Options

Specially engineered for your application
Span up to 50 ft (15 m)
Stainless steel or PVC pipe

 Advantages:

  • Easily craned out of full basins for inspection and maintenance using floating retrieval lines.
  • EDI aeration engineers design for max long-term value and reliability
  • Self-contained, with a dedicated air supply line, ballasts, and diffusers mounted to a large-diameter pipe
  • Leveled and elevated to the desired elevation by integrated legs.

Compatibility:

ModuleAir™ configurations are compatible with:

And are useful for:

 

What ModuleAir does

ModuleAir makes installation into (or maintenance in) an online reactor a reality.

Where online system reliability and operating performance are mandatory, EDI ModuleAir configurations are ideal for applications. The system allows individual grids to be installed, accessed, or removed without draining or taking the reactor out of service.

This system is available in varying diameters and lengths depending on application needs. Systems up to 60 ft (18 m) and air capacities up to 2000 scfm (3400 sm3/h) have been supplied.

For tank applications, the EDI ModuleAir system rests directly on the reactor floor. The assembly is typically lifted and dropped into position with an overhead crane.

For lagoon applications, EDI ModuleAir configurations are provided with adjustable base plates. The system is typically floated and lowered into position. Adjustable base plates allow the system to be leveled from the water surface.

EDI ModuleAir is ideal for single-reactor applications where online installation and maintenance is required. The aeration system could be pullet out for maintenance without having to drain the basin. Applications requiring supplemental oxygen supply, mixing, or energy upgrades are also suitable.

Standard material of construction is stainless steel. This provides the required structural performance to support large grids. Alternate materials of construction, including galvanized steel and non-metal materials, are also available.

what moduleAir delivers

ModuleAir Systems with Lift-In/Lift-Out Diffuser Option

  • Available with all EDI fine bubble diffusers
  • Accommodates variable water level and nonuniform floor conditions
  • Self-contained assembly; dedicated airline and ballasted assembly rests on reactor floor
  • Stainless steel construction standard; alternate materials of construction available
  • Retrievable modules for high rate aeration applications where the reactor cannot be drained for system maintenance
  • Modules can span 5 feet (1.5 m) up to 50 feet (15 m) depending on application
  • Typical stainless steel construction

Want to know what an EDI ModuleAir configuration could do for you?

Submit your RFP today and our on-staff professional engineers can help you size and design an aeration and treatment upgrade to meet your wastewater treatment requirements.

Streamline®

The EDI-exclusive system that brings together your membrane, diffuser, and configuration for unmatched system simplicity.

StreamLine is Aeration, simplified.

StreamLine® is EDI’s patented configuration with unmatched system simplicity; results: up to 33% reduction in system installation time compared to competing panel systems. Plus, membrane replacement can be completed in the field.

  • Minimize in-basin components: StreamLine’s proven design elevates the industry’s standard practice by minimizing in-basin aeration piping and attached diffuser components. The self-contained FlexAir® membrane panels and the inline support system reduce stress points and potential material fatigue. In short, StreamLine delivers a new level of performance, simplicity and service life.
  • Widest Application: StreamLine can be configured for any industrial or municipal application, tank size or geometry
  • Efficient: StreamLine’s geometry supports low flux rate resulting in ultra-high OTE performance. Precision die-cut NanoPore and MicroPore perforation for meeting air handling, OTE and pressure objectives.
  • Reliable: Engineered materials for maximum chemical, temperature and UV resistance and advanced PTFE impregnated membranes for reduced fouling and optimum performance.
  • Adjustable: StreamLine provides full solids suspension both above and below the diffuser grid. Elevation of the diffuser is adjustable to match blower performance.

Unique StreamLine features and benefits:

Has a profiled top surface and no side edges, preventing coarse solids from settling on the diffuser

  • Lowest panel system back pressure available in the market
  • Offers a panel membrane with PTFE fully embedded throughout the material (MatrixPlus™)
  • Panel can be used in aeration basins without grit removal upstream
  • Panel has less than 3′ of edge seal to minimize diffuser breach
  • Panel offers triple back flow prevention
  • Membrane be replaced in the field, and carry a manufacturer’s warranty
  • Offers a complete non-metallic option available for corrosive environments
  • System can function at optimum without frequent venting or air-bumping
  • Available panel option that can be safely acid-cleaned

Want to know what EDI StreamLine® could do for you?

Our on-staff professional engineers can help you size and design a Streamline® system to meet your wastewater treatment requirements.

Recent Case Studies

Grantsville, UT: IDEAL

IDEAL extended aeration system and batch reactor process doubles treatment capacity for lagoons just south of Great Salt Lake.

read more