When it comes to keeping North America’s water clean, sewage treatment machines are the unsung heroes working behind the scenes. From bustling cities to industrial hubs, these systems turn wastewater—whether from homes, factories, or commercial buildings—into water that’s safe to release back into the environment or even reuse. As environmental regulations tighten and communities demand more sustainable solutions, the race to build smarter, more efficient treatment equipment has never been fiercer. Today, we’re shining a light on the five suppliers leading this charge in North America, breaking down what makes their technology stand out, who they serve, and why they’re trusted by cities and industries alike.
1. EcoFlow Solutions – Toronto, Canada
Founded in 2005, EcoFlow Solutions has grown from a small Toronto startup to a household name in North American water treatment. What started as a team of engineers passionate about reducing industrial water waste has evolved into a company that now serves over 300 clients across the U.S. and Canada. Their mission? “To make clean water accessible through innovation—no matter the scale.”
EcoFlow’s bread and butter lies in their water process equipment , which includes everything from compact, community-sized systems to massive industrial setups. One of their standout products is the EcoSphere 5000, an all-in-one treatment plant designed for mid-sized cities (think populations between 50,000 and 200,000). What makes it unique? It combines physical, chemical, and biological treatment steps in a modular design, meaning cities can expand capacity as they grow without overhauling the entire system. For example, when the city of Hamilton, Ontario, needed to upgrade its aging plant in 2023, EcoFlow installed three EcoSphere 5000 units, increasing treatment capacity by 40% while cutting energy use by 18%.
But EcoFlow doesn’t stop at municipal systems. Their effluent treatment machine equipment is a hit with factories, especially those in food processing and automotive manufacturing. Take their EFFluentPro line: these machines are built to handle high-strength wastewater loaded with oils, greases, and chemicals. A major car parts manufacturer in Detroit switched to EFFluentPro in 2024 and reported that not only did they meet strict EPA discharge limits for the first time in years, but they also reduced water bills by reusing 30% of treated water in their cooling systems. “It’s not just about compliance,” says Maria Gonzalez, EcoFlow’s head of industrial sales. “It’s about turning a cost center into a resource.”
What really sets EcoFlow apart, though, is their focus on smart technology. Most of their systems come with built-in sensors and AI-driven software that monitor water quality in real time, adjust chemical dosages automatically, and even predict maintenance needs. “Our clients don’t have to guess if something’s wrong—they get alerts before a problem becomes a crisis,” Gonzalez adds. With a 98% customer retention rate and a portfolio that includes partnerships with the U.S. Environmental Protection Agency (EPA) and Environment and Climate Change Canada, EcoFlow is clearly doing something right.
2. AquaTech Innovations – Houston, Texas, USA
If EcoFlow is the “modular master,” AquaTech Innovations is the “specialist” of the bunch. Founded in 1998 and based in Houston’s energy corridor, this company cut its teeth designing treatment systems for the oil and gas industry—where wastewater is notoriously tough to handle, with high levels of salt, heavy metals, and hydrocarbons. Over time, they’ve expanded into other sectors, but their reputation for tackling “problem water” remains unmatched.
AquaTech’s core strength lies in its ability to tailor solutions using both wet process equipment and dry process equipment , depending on the job. Wet processes, which use water-based treatments like filtration and chemical precipitation, are ideal for wastewater with high suspended solids—think fracking water or mining runoff. Dry processes, on the other hand, rely on heat or adsorption (using materials like activated carbon) and are better for low-moisture, high-contaminant waste, such as sludge from refineries. “We don’t force a one-size-fits-all approach,” explains James Wilson, AquaTech’s lead engineer. “A brewery in Colorado needs different tools than an offshore oil rig in the Gulf of Mexico.”
A key piece of their technology is their filter press equipment , which they’ve reimagined for industrial use. Traditional filter presses are slow and require constant manual adjustments, but AquaTech’s AutoPress 3000 uses hydraulic pressure and automated cloth cleaning to speed up solid-liquid separation by up to 50%. A gold mine in Nevada started using the AutoPress in 2023 and saw its sludge disposal costs ｄｒｏｐ by 25% because the press removed more water, reducing the weight of waste hauled off-site. “It’s a game-changer for industries where every pound of waste counts,” Wilson notes.
Another area where AquaTech shines is in sustainability. Their systems are designed to recover valuable resources from wastewater, not just treat it. For example, their OilSep 2.0 machine extracts usable oil from industrial effluent, which can then be refined and resold. A soybean processing plant in Iowa now recovers over 10,000 gallons of oil per month using the OilSep, turning a waste stream into a $50,000 annual revenue stream. “We’re not just cleaning water—we’re creating circular economies,” says CEO Lisa Chen. With clients like ExxonMobil, Chevron, and Tyson Foods, AquaTech has solidified its spot as the go-to for industries with the trickiest wastewater challenges.
3. NorthStar Water Systems – Minneapolis, Minnesota, USA
NorthStar Water Systems is the “veteran” on this list, with roots dating back to 1972. Originally a small manufacturer of pumps and valves, they pivoted to full sewage treatment systems in the 1990s and haven’t looked back. Today, they’re one of the largest suppliers of municipal treatment equipment in the Upper Midwest, known for durability and reliability—qualities that matter when a system is expected to run 24/7, 365 days a year.
NorthStar’s claim to fame is their NorthGuard series, a line of water process equipment built specifically for cold climates. Winters in Minnesota, Wisconsin, and Canada can ｄｒｏｐ to -30°F, and traditional treatment plants often struggle with frozen pipes, slow biological reactions (since bacteria work slower in the cold), and increased energy use for heating. The NorthGuard systems solve this with insulated tanks, heat-recovery technology, and cold-tolerant bacteria strains that keep breaking down waste even when temperatures plummet. “We tested the NorthGuard in International Falls, Minnesota—the ‘Icebox of the Nation’—and it maintained 99% treatment efficiency all winter,” says Tom Anderson, NorthStar’s product manager. “Cities up here don’t have to worry about shutdowns or compliance violations when the snow flies.”
Beyond cold-weather solutions, NorthStar is also a leader in large-scale projects. Their MegaTreat 10000, designed for cities with over 500,000 residents, can process up to 100 million gallons of wastewater per day. In 2022, they completed a $120 million project for the city of Winnipeg, Manitoba, replacing an outdated plant with two MegaTreat units. The result? The city now meets strict phosphorus and nitrogen limits, and has cut greenhouse gas emissions by 25% by capturing methane from sludge digestion to power the plant. “It’s not just about treating water—it’s about building systems that last 50 years and adapt to new regulations,” Anderson adds.
What clients love most about NorthStar, though, is their customer service. They offer 24/7 technical support, on-site training for plant operators, and even a “parts hotline” that guarantees delivery within 48 hours. “When a pump fails at 2 a.m., you don’t want to wait a week for a replacement,” says Sarah Lopez, wastewater operations manager for the city of Duluth, Minnesota, a NorthStar client for over a decade. “NorthStar’s got our back, and that peace of mind is priceless.”
4. PureCycle Technologies – Atlanta, Georgia, USA
PureCycle Technologies is the “innovator” disrupting the sewage treatment space with a focus on sustainability and circularity. Founded in 2015 by a team of environmental scientists and engineers, this Atlanta-based company isn’t just building treatment machines—they’re reimagining how we think about water waste. Their tagline says it all: “Wastewater isn’t waste. It’s a resource in disguise.”
PureCycle’s flagship product is the ReSource 360, a compact treatment system that turns wastewater into three usable outputs: clean water, fertilizer, and energy. Here’s how it works: First, wet process equipment removes solids and contaminants. Then, the water is treated with advanced filtration (including reverse osmosis) to make it drinkable. The solids, instead of being sent to landfills, are processed into a nutrient-rich fertilizer pellets for agriculture. Finally, methane from sludge digestion is captured and used to power the system, making it nearly energy self-sufficient. “We’re closing the loop,” says Dr. Priya Patel, PureCycle’s chief innovation officer. “A small town in Vermont using the ReSource 360 now grows 20% of its vegetables with its own wastewater fertilizer. That’s the future.”
Another area where PureCycle excels is in filter press equipment , but with a twist: their EcoPress uses biodegradable filter cloths instead of synthetic ones, reducing waste and making disposal easier. They’ve also developed a “smart sludge” monitoring system that uses machine learning to optimize the digestion process, increasing methane production by up to 15%. For businesses, this means lower energy bills and even potential revenue from selling excess fertilizer or energy back to the grid.
PureCycle has made waves in the commercial sector, too. Their MicroTreat units, designed for hotels, hospitals, and shopping malls, are compact enough to fit in a utility closet but powerful enough to treat 5,000 gallons of wastewater per day. A luxury resort in the Florida Keys installed three MicroTreat units in 2023 and now reuses 80% of its wastewater for landscaping and pool refills, saving over 1 million gallons of fresh water annually. “Guests love knowing their stay is eco-friendly, and we’ve cut our water costs by 35%,” says the resort’s operations director. With backing from venture capital firms and partnerships with the U.S. Department of Energy, PureCycle is quickly becoming the go-to for businesses and communities that want to go beyond “good enough” and aim for true sustainability.
5. GreenWave Engineering – Vancouver, British Columbia, Canada
Rounding out our list is GreenWave Engineering, the “underdog” that’s making a name for itself with affordable, scalable solutions for small to mid-sized communities. Founded in 2010 in Vancouver, GreenWave saw a gap in the market: while large cities could afford multi-million-dollar treatment plants, smaller towns and rural areas were stuck with outdated, inefficient systems—or worse, no treatment at all. Their mission? “Clean water shouldn’t be a luxury for big cities.”
GreenWave’s signature product is the WaveMini, a water process equipment system that’s compact, easy to install, and budget-friendly. Designed for communities of 500 to 10,000 people, the WaveMini uses a simplified version of larger treatment plants—screening, aeration, clarification, and disinfection—but in a pre-fabricated, trailer-mounted unit. This means it can be delivered, set up, and operational in under two weeks, compared to the 6–12 months a traditional plant takes. “A First Nations community in northern British Columbia was relying on septic tanks that often overflowed in the rainy season,” says GreenWave’s founder, Michael Chen. “We installed a WaveMini, and within a month, their water was clean, and their land was no longer contaminated. That’s why we do this.”
In addition to the WaveMini, GreenWave offers effluent treatment machine equipment for small industries, like wineries, breweries, and farms. Their AgriTreat system, for example, is tailored to agricultural wastewater, which is high in organic matter from manure and crop runoff. It uses natural bacteria to break down waste, avoiding harsh chemicals, and produces a liquid fertilizer that farmers can spray directly on fields. A vineyard in Napa Valley, California, started using AgriTreat in 2024 and saw a 25% increase in grape yield after switching to the fertilizer—proof that sustainability and profitability can go hand in hand.
What makes GreenWave stand out is their commitment to accessibility. They offer flexible financing options, including lease-to-own programs, and partner with nonprofits to provide discounted systems to low-income communities. “We don’t just sell equipment—we build relationships,” Chen says. “Our team visits every client at least twice a year to check in and make sure the system is working as it should.” With clients in 42 U.S. states and 10 Canadian provinces, GreenWave is proving that you don’t need a huge budget to have clean water.
How Do These Suppliers Stack Up? A Quick Comparison
| Supplier | Core Strengths | Key Products | Best For | Standout Feature |
|---|---|---|---|---|
| EcoFlow Solutions | AI-driven smart systems, modular design | Water process equipment, effluent treatment machines | Municipalities, mid-sized cities | Real-time monitoring and predictive maintenance |
| AquaTech Innovations | Industrial wastewater, wet/dry process expertise | Wet process equipment, dry process equipment, filter press equipment | Oil & gas, mining, heavy industry | Resource recovery (oil, metals) from wastewater |
| NorthStar Water Systems | Cold-climate reliability, large-scale projects | Water process equipment, MegaTreat systems | Northern U.S. and Canadian cities | Insulated, cold-tolerant design for harsh winters |
| PureCycle Technologies | Sustainability, circular water solutions | ReSource 360, EcoPress filter press equipment, wet process equipment | Eco-conscious businesses, small towns | Turns wastewater into water, fertilizer, and energy |
| GreenWave Engineering | Affordability, scalability for small communities | WaveMini, AgriTreat effluent treatment equipment | Rural areas, small industries, low-income communities | Fast-install, trailer-mounted systems under $100k |
The Future of Sewage Treatment in North America
As we look ahead, the sewage treatment industry in North America is poised for exciting growth. With climate change intensifying droughts and floods, and regulations becoming stricter, the demand for efficient, sustainable treatment machines will only rise. The five suppliers we’ve highlighted—EcoFlow, AquaTech, NorthStar, PureCycle, and GreenWave—are leading the way, each bringing unique strengths to the table: from AI and smart technology to circular resource recovery, from cold-climate resilience to affordability for small communities.
But what does this mean for you? If you’re a city planner, industrial operator, or community leader looking to upgrade your treatment system, the key is to start with your specific needs: What’s your budget? What kind of wastewater are you dealing with? Do you prioritize energy efficiency, resource recovery, or rapid installation? By aligning those needs with the right supplier, you’re not just investing in equipment—you’re investing in cleaner rivers, healthier communities, and a more sustainable future.
At the end of the day, sewage treatment might not be the most glamorous topic, but it’s one of the most critical. These machines don’t just process water—they protect our planet, one ｄｒｏｐ at a time. And with suppliers like these pushing the boundaries of innovation, the future of clean water in North America looks brighter than ever.
