Diffuser Express
Suppliers of Diffusers, Replacement Membranes, and Specialty Diffuser Items Across All Brands
aeration for life™
is a product, a service, and most of all, a commitment. It means we support engineers from the first design, contractors with the easiest installation processes, plant operators with the widest range of American-made aftermarket parts, and municipal and industrial dischargers with the ability to offload their specialized care and maintenance to us, so treatment plants can trust their aeration again.
In order to rely on your aeration system, you want it designed by experts to meet your specific needs. For more than forty-five years, EDI has been making customized aeration solutions accessible to all wastewater treatment plants by supplying and even innovating
- Membranes that regulate bubble size and durability (including EPDM, PTFE, and EDI-exclusive Matrix™)
- Diffusers which distribute the air (including FlexAir fine-bubble discs, tubes, panels, CoarsAir coarse bubble diffusers, and EDI-exclusive Streamline™)
- Configurations providing system-friendly diffuser mounts (including fixed grid or EDI-exclusive ModuleAir™ retrievable configurations)
- Aftermarket services and parts to offer efficient installation and maintenance done right (through SiteWorks™ service teams and Diffuser Express parts)
EDI is proud to be a Nexom brand, with our combined set of unique offerings and capabilities you can be sure every step of the way industry experts will guide you to a treatment solution you can rely on, that is easy to maintain and operate. Our integrated offering includes diffusers, blowers, mixers, controls, and services.
Site Works
System Evaluation | Installation | Maintenance | Service Contracts
New Technologies
High Caliber In-House Engineering
Lagoon Solutions
SAGR® | optAer® | IDEAL™ | Activated Sludge | Complete Mix | Partial Mix
Advanced Aeration
Optimal System Configuration and Design with Disc, Tube, and Panel Diffusers
Industrial Solutions
Design | Installation | Service
WE ARE FOCUSED ON RESULTS
EDI AERATION SYSTEMS COULD REDUCE ENERGY REQUIREMENTS UP TO 70%
What We Offer
About Our Company
SInce 1975
EDI offers technology, aeration, and biological treatment solutions for municipal and industrial wastewater
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Read more
About Our Company
SInce 1975
EDI offers technology, aeration, and biological treatment solutions for municipal and industrial wastewater
Read More
Read more
About Our Company
SInce 1975
EDI offers technology, aeration, and biological treatment solutions for municipal and industrial wastewater
Read More
Read more
About Our Company
SInce 1975
EDI offers technology, aeration, and biological treatment solutions for municipal and industrial wastewater
Read More
Read more
While working with Aeration Works crews, we have been able to do improvements to the system to make it run more efficiently. The crews are well-trained on the systems and know what it takes to fix any problem that may come up.
The Siteworks crew impressed us with their efficient, respectful, safe work and were a pleasure to work with. I highly recommend this crew to any other municipality looking to upgrade their aeration basins.
Today, we are exceeding our original (effluent improvement) goals, and can reduce total phosphorus… due in large part to the robust system design (by EDI’s Symphony® program).
The project has been a great success, providing EDI technology is not only reliable, but also simple and easy to install.
The crew you sent here was one of the best I have ever had the pleasure to work with.
Mike Korman at EDI was a true professional and always made it clear that his primary concern was not only a quality finished product, but that any concerns or issues were resolved completely to the City's satisfaction.
We purchased the Extended Warranty with annual inspection to make sure the performance stays top-notch. They have lived up to their guarantee on this spectacular design and installation.
The crew from Aeration Works at EDI was really good to work with. From the beginning we could tell that they were willing to go 'above and beyond' normal efforts to make sure the diffusers for our system were installed in the most professional manner.
Energy Efficient Water Reuse with Maintenance at Southern Oklahoma
The reuse of produced water is becoming pivotal to the continued application of fracturing hydrocarbon recovery techniques. While the sector’s economic and market conditions remain soft, an innovative, cost effective solution is being demonstrated at this facility. Benefits including reduced chemical costs and improved SRB (Sulfur Reducing Bacteria) APB (Acid Producing Bacteria) control are being provided. Impro...
SiteWorks Gives 31-Year Old System New Life
The Metro Wastewater Reclamation District is the major wastewater treatment authority of metropolitan Denver, CO. The Metro District’s Robert W. Hite Treatment Facility (RWHTF) has been operational since 1966, and serves approximately 2 million people. As one of the largest wastewater treatment facilities west of the Mississippi (220 million gallons / 832,790 cubic meters per day capacity) the plant treats and r...
SiteWorks™ Continues to Grow a Happy Customer Base
The Northwest Municipal Wastewater Treatment Plant of the City of Springfield, MO had EDI FlexAir™ MiniPanel™ diffuser system installed and operational for ten years. MiniPanel™ is a unique, fine pore, flexible membrane diffuser that provides superior operational flexibility and oxygen transfer efficiency compared to other membranes or rigid fine pore (ceramic) diffusers. SiteWorks™ – the aeration solutions and ...
General Oxygen Requirements for Wastewater Treatment
TECHNICAL BULLETIN 135 General Oxygen Requirements for Wastewater TreatmentOxygen requirements for municipal wastewater treatment can be predicted closely with the standard laboratory analysis using g the BOD test (special requirements exist for some industrial wastewater). The BOD test is designed to measure Biological Oxygen Demand for the wastewater and provides an excellent basis for design assuming: Wast...
PTFE Coated EPDM Diffuser Membranes
Technical Bulletin 171 PTFE Coated EPDM Diffuser Membranes: Benefits and Limitations Membrane diffuser technology has become the standard for high efficiency transfer of oxygen into wastewater. This difficult service has utilized many materials for membrane construction with premium low oil EPDM having emerged as one of the most reliable materials throughout the industry. Even premium EPDM can occasionally exper...
Field Performance of Fine and Ultra Fine Bubble Diffusers
History – Coarse, Medium, Fine Bubble Diffusers Diffuser efficiencies are generally measured in clean water to allow basis of comparison of similar products and prediction of actual performance in a wastewater treatment plant application. Before standard testing procedures were implemented, SOTE data were managed by the various suppliers of aeration equipment with optimistic results from conducting their own cle...
High Efficiency Diffusers vs Surface Aerators
TECHNICAL BULLETIN 162 | High Efficiency Diffusers versus Surface Aerators EDI (Environmental Dynamics International) has engineered systems that are well suited for almost any aeration mixing application. With multiple diffuser platforms available it gives design engineers or users choices for coarse bubble, fine bubble of different types, and several different configurations for the diffuser systems. With this...
Energy Smart Designs
TECHNICAL BULLETIN 158 | Energy Smart Designs It is common knowledge in wastewater treatment plants that the energy consumption of the plant is highly concentrated in the aerobic treatment process. Most plants would find that the aeration system consumes as much as 50% - 70% of the energy of the entire plant! This is an area which gives great opportunities for design optimization and opportunities for major gain...
Floating Lateral Successful Operations
EDI Advanced Technology lagoon aeration systems offer robust solution for severe weather operations. EDI personnel are continuously asked about operation of our floating lateral systems in cold weather conditions, and in some cases very hot or sunny weather conditions. EDI offers a wide range of Lagoon Solutions and we are often asked can your floating lateral systems be successful in northern climates? The pho...
Testing Pipe Support Spacing
Aeration system pipe supports are typically spaced in the industry to provide long-term performance and service of aeration piping systems. In the spacing of these pipe supports, there are several variables that must be considered and evaluated to create a proper design. Clearly, there is a desire to have the pipe supports function properly while using the minimum number in order to control economics for the sys...