Technologies for Cleaner Water

…so engineers and operators never have to worry about their treatment limits again.

EDI joins the Nexom family

No matter your project, you never need to worry about your aeration again.

Whether your lagoons are small, old, overloaded, or cold…

We’ve helped all kinds of lagoons meet their treatment regulations while keeping them reliable, energy efficient, and easy to operate.

Let us do the work

With SiteWorks, you have an elite team of wastewater treatment professionals ready to handle your next install, upgrade, maintenance or repair.

The wastewater industry has seen how nutrients have exposed the limits of existing solutions. Nexom design-supports and supplies the next wave of proven


so engineers and operators never have to worry about their treatment plant’s limits again.

We support engineers from the first design, contractors with the easiest installation processes, plant operators with the widest range of 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.

Nexom’s Family

Nexom is a proud member of the Axius Water family, a growing group of companies addressing nutrients in wastewater!

Environmental Dynamics International

It’s easy to upgrade wastewater treatment with us:

Submit your RFP

...or simply reach out to our friendly staff and have them walk you through the details we need. Yes, you can get started today!


You receive design support and final design-ready drawings, with the support of our expert engineers who work with you to identify the solution to your wastewater treatment requirements.

We Supply Our Exclusive Technologies

Our exclusive technologies will set your project apart and are delivered to site on time to keep contractors on schedule and accountants happy. Our qualified staff commissions our installations, assuring clients that our technologies work to specification and equipping operators with the knowledge they need from day one.

Never Worry About Nutrient Limits Again

We continue to stand behind the installation, long after the shovels and hardhats have left the site. Our support teams ensure our technologies exceed expectations, and they equip operators with the knowledge they need to keep it that way. Throughout the long life of the technology, our friendly staff is ready to supply any needed service or parts. After all, we are committed to our mission, that no engineer or operator should ever have to worry about nutrient limits again.

kilograms of nutrients removed by Nexom technologies over the next 5 years.

We strive to lead the wastewater revolution, powered by some of the friendliest people you’ll ever meet, working for the Best Employer in Wastewater!

Testimonial Slider Nexom

What engineers have said:

"[Nexom's] innovative technology as a post lagoon tertiary filter will meet all the town's future development needs and save the town millions of dollars compared to a conventional plant!"— TRISH JOHNSON, OTTAWA, ONTARIO

What engineers have said:

"The [SAGR] wastewater system is consistently discharging extremely high effluent quality with non-detect BOD, TSS and ammonia."

What engineers have said:

"Nexom's ability to work with the local operators and their client service throughout the pilot was exemplary!"

What engineers have said:

"The ease of operation and the ultimate success of the Walker [SAGR] system has led to several other projects in the surrounding communities and throughout Iowa."— MATT WILDMAN, P.E. CEDAR RAPIDS, IOWA

Read our most recent case studies:

Duckett Creek, MO: FlexAir & SiteWorks
Duckett Creek, MO: FlexAir & SiteWorks

Project Information Location: Duckett Creek, MO Project Type: Municipal Initial Installation: 1994 Upgrades: 2016, 2017, 2018In 1994, Environmental Dynamics International (EDI) upgraded the Aerobic Digestion system at the 5 MGD Duckett Creek WWTP near St. Charles, MO....

Leprino Foods Dairy Processing, CO: SiteWorks
Leprino Foods Dairy Processing, CO: SiteWorks

Project Information Location: Denver, CO Project Background & Challenges Leprino Foods is one of the largest global producers of mozzarella cheese with numerous plant facilities in the U.S. and overseas. They pride themselves on producing “the best dairy products...

Robert W. Hite Treatment Facility, Denver, CO: SiteWorks
Robert W. Hite Treatment Facility, Denver, CO: SiteWorks

Project Information Location: Denver, CO Design Flow: 220 MGD (830,000 m3/day) Diffusers Replaced: 64,000+Project Background & Challenges The Metro Wastewater Reclamation District is the major wastewater treatment authority of metropolitan Denver, CO. The Metro...

Yes, We have the aeration for that.

Integration of EDI into Nexom means, no matter your need, you'll never worry about your aeration again.
Discover Aeration for Life™ from EDI

EDI joins Nexom to provide cutting-edge aeration with proven service & support.

Finding a reliable aeration supplier is easier than ever with the integration of EDI into Nexom. Whether you have a 200 MGD multi-stage plant or a 0.2 MGD lagoon, we are the one team that can take you from first design through install and provide long-term maintenance.

Say goodbye to BOD, ammonia, or nitrates.


Combining the proven BioPorts moving bed biofilm reactor with Nexom’s unmatched nitrification expertise and patented processes means facilities with footprint restrictions can beat their ammonia (or BOD or nitrate) limits too

Find Out if Bioports is Right for your Installation

MBBR and IFAS technology promises major nitrification, minor footprint.

Whether you’re building a greenfield treatment plant or retrofitting a facility, this is great news. BioPorts has proven itself in a wide range of applications, from standalone MBBR systems to converting activated sludge plants into IFAS facilities to lagoon-based systems requiring ammonia reduction.

Nexom’s acquisition of the BioPorts MBBR puts its established strengths in the hands of the company that knows BOD and removal and nitrification—especially nitrification in the most extreme conditions—better than anyone.


Lagoons love winter when they've got a SAGR.
Find Out Why

The Nexom SAGR® is designed to follow wastewater treatment lagoons or other secondary treatment processes to provide full nitrification in cold water temperatures. The SAGR reliably achieves effluent Total Ammonia-Nitrogen levels below <1 mg/L in water that’s <1°C/34°F

Beat phosphorus limits as low as 0.02 mg/L

For every regulator's action imposing ultra-low phosphorus limits, Blue PRO is the equal and appropriate reaction.
Blue Pro Reactive Filtration

You didn’t choose your limits, but you can choose to beat them. When ultra-low levels of phosphorus or metals can do a lot of damage, wastewater treatment plants can become targets of regulatory pressure to meet low levels of phosphorus and metals limits. Beat those limits with Blue PRO.


requires a full-time solution, so when you need to remove solids or phosphorus turn to the
Infini-D Zero-Downtime Cloth Disk Filter

The infini-D™ Zero-Downtime Cloth Disk Filter is ideal for solids and phosphorus removal. It provides optimal filtration and allows individual disks to to be removed, inspected and maintained while other disks continue filtering. Tank de-watering is not required, and the system stays online while being maintained.


With optAER, it can be.
optAer Fine-Bubble Lagoon Aeration

Nexom’s optAER® family of lagoon upgrades is created to give you the tools you need to meet BOD and TSS effluent quality requirements and turn a lagoon into a low-O&M, high-performance treatment facility, including fine-bubble aeration, floating laterals, self-tensioning headers, HDPE ball covers, and much more.

You can try squeezing the last 0.1% out of your SOTE, but low-hanging fruit can COME OFF THE BELT.

Optimize your plant with 30% less BOD and 60% less TSS thanks to
Ecobelt Rotating Belt Filtration

Thanks to EcoBELT’s size, performance, and cost, primary treatment is finally scalable. With a small footprint, a relatively low capital cost, and proprietary advantages that make it the most operator-friendly rotating belt filter to date, now primary treatment can be upgraded.

With great nitrifying power comes TOTAL NUTRIENT REMOVABILITY.

Beat Total Nitrogen and Nitrate limits with
BlueNite Biological Denitrification

The simple, flexible, biological way to beat nitrate limits. Built upon a continuous-upflow sand filter platform, Blue Nite creates the optimal conditions required for denitrifying bacteria to thrive. And where denitrifiers take hold, nitrates don’t last long.


People Served Worldwide

Countries with Running Systems

Proud Water Environment Federation (WEF) member