Top five sewage treatment machine suppliers in South Korea [2025]

If you’ve been on the hunt for a supplier that prioritizes both performance and planet, EcoFlow Tech should be at the top of your list. Founded in 2010, this Seoul-based company has built a reputation for turning "green goals" into tangible results. What sets them apart? They don’t just sell equipment—they design systems that grow with your business, all while slashing energy use and waste.

Let’s talk products. EcoFlow’s star offering is their EcoSeries Water Process Equipment , a modular system that handles everything from industrial wastewater to municipal sewage. Imagine a setup that can treat up to 5,000 cubic meters per day but can also scale down for smaller facilities—no need to overbuy or underperform. One of their most talked-about innovations is the integrated effluent treatment machine equipment , which uses advanced membrane filtration to remove 99% of contaminants, including heavy metals and organic compounds.

But here’s the real kicker: EcoFlow doesn’t stop at treatment. They recently launched their SmartFilter Press Equipment , a game-changer for sludge management. Traditional filter presses can be clunky and energy-heavy, but EcoFlow’s version uses AI-driven pressure control to reduce water content in sludge by up to 30% compared to standard models. That means less waste to transport, lower disposal costs, and a smaller carbon footprint. "We worked with a food processing plant in Busan last year," says Min-Jun Park, EcoFlow’s sales director. "They were struggling to meet new government regulations on effluent discharge—within three months of installing our system, they not only complied but cut their water bill by 20%."

EcoFlow also shines in customer support. They offer 24/7 remote monitoring, so if a sensor detects an issue, their team can troubleshoot before it becomes a problem. For businesses worried about downtime, that’s priceless. And with a 5-year warranty on all major components, you’re not just buying a machine—you’re investing in peace of mind.

Ever wondered who handles sewage treatment for South Korea’s biggest industrial zones? Chances are, it’s AquaPure Solutions. This Gyeonggi-based giant specializes in high-capacity systems that tackle the toughest wastewater challenges—think refineries, chemical plants, and urban sewage networks serving millions. If your project involves numbers like "10,000+ cubic meters per day," AquaPure is the name to know.

Their flagship product, the MegaTreat Series , is designed for heavy-duty use without sacrificing efficiency. Take the MegaTreat 15000, which can process up to 150,000 cubic meters of sewage daily —that’s enough to serve a city of over half a million people. How do they pull that off? AquaPure’s secret is their proprietary multi-stage water process equipment , which combines anaerobic digestion, activated sludge, and UV disinfection in one streamlined setup. Unlike traditional systems that require separate tanks and long retention times, the MegaTreat uses a compact, vertical design to save space—critical for urban areas where land is scarce.

But it’s not just about size. AquaPure also leads in treating "difficult" wastewater, like the toxic effluents from electronics manufacturing. Their Advanced Effluent Treatment Machine Equipment for industrial use includes specialized filters that target heavy metals like lead and mercury, even at concentrations as low as 0.01 mg/L. "We recently completed a project for a semiconductor factory in Incheon," explains Hana Kim, AquaPure’s chief engineer. "Their wastewater contained fluoride and ammonia at levels that would shut down most systems. Our equipment not only treated it to meet strict discharge standards but also recovered 80% of the water for reuse in their cooling towers. That’s sustainability and cost-savings in one."

AquaPure isn’t afraid to get hands-on, either. They offer turnkey solutions, from initial site surveys to installation and staff training. For the Daedeok Tech Valley, a hub for tech and biotech companies, they built a custom treatment plant that handles 20 different types of wastewater—all from a single control room. And with a team of over 200 engineers nationwide, they can deploy support teams in hours, not days. The downside? Their systems are a significant investment, with prices starting at around ₩5 billion (≈$3.7 million). But for large-scale operations, the ROI is clear: reduced regulatory fines, lower long-term maintenance costs, and the ability to take on bigger projects without worrying about treatment capacity.

What about smaller businesses? AquaPure does offer scaled-down models, like the MiniTreat 5000, for mid-sized factories. But make no mistake—their heart lies in mega-projects. If you’re part of a consortium building a new industrial park or upgrading a city’s infrastructure, AquaPure will likely be the first supplier your engineering team recommends.

Not every business has acres of land for a sprawling treatment plant. That’s where NeoWater Systems comes in. This Busan-based innovator specializes in compact water process equipment that delivers big results in small packages—perfect for SMEs, restaurants, hotels, and rural communities. Since 2015, they’ve been proving that "small" doesn’t mean "low quality."

Take their SpaceSaver Effluent Treatment Machine Equipment , a all-in-one unit that fits in a space no larger than a standard shipping container (12m x 2.4m). Don’t let the size fool you: the SpaceSaver 500 can treat up to 500 cubic meters per day —enough for a hotel with 300 rooms or a mid-sized brewery. How? NeoWater uses a unique dry process equipment approach for primary treatment, followed by a biological trickling filter that requires minimal water and energy. "Traditional wet process systems need constant water circulation," says Ji-Hye Lee, NeoWater’s product designer. "Our dry process cuts energy use by 40% because there’s no need for large pumps or aeration blowers."

Another standout is their FilterPress Mini , a scaled-down version of industrial filter presses that’s perfect for small-scale sludge dewatering. Weighing just 800kg and requiring only a single-phase power supply, it’s easy to install and operate—no need for a dedicated technician. "A family-owned textile factory in Gwangju bought one last year," Ji-Hye recalls. "They used to pay a third party to haul away wet sludge, which cost them ₩2 million monthly. With the FilterPress Mini, they now produce dry cake that they sell as fertilizer to local farms—turning a cost into a revenue stream."

NeoWater also excels in customization. Need a system that fits in a basement? They’ll design it. Want to treat wastewater with high oil content (like a car wash)? They’ll tweak the filtration media. And with prices starting at around ₩30 million (≈$22,000) for the SpaceSaver 500, they’re one of the most affordable options on the market. For businesses just starting out or looking to expand without breaking the bank, NeoWater is a smart choice. They even offer rental options, so you can test the equipment before buying—ideal for seasonal operations like summer resorts.

In a world where everything is connected, why should sewage treatment be left behind? CleanStream Engineering, based in Daejeon’s tech hub, is leading the charge in "smart treatment"—systems that use IoT, machine learning, and real-time data to optimize performance. If you’re a tech-savvy business owner who loves dashboards and predictive analytics, CleanStream will feel like a breath of fresh air.

Their SmartTreat AI System is the star here. Every component—from pumps to sensors to chemical dosers—is connected to a central AI platform that learns your wastewater patterns over time. For example, if your factory’s production schedule changes (like running double shifts on weekends), SmartTreat automatically adjusts treatment parameters to maintain water quality. "It’s like having a 24/7 treatment plant manager who never sleeps," says Tae-Young Kim, CleanStream’s tech lead. "We had a pharmaceutical client in Daegu that saw a 15% reduction in chemical usage after the first month because the AI figured out exactly how much coagulant was needed, instead of relying on fixed dosages."

CleanStream also integrates advanced water process equipment with their AI platform. Their SmartFilter Press Equipment , for instance, uses real-time pressure and flow data to adjust cycle times, ensuring optimal dewatering without over-pressing (which can damage filters). The result? Sludge with 25-30% solids content, compared to 20% with manual systems. And because all data is accessible via a mobile app, you can check treatment metrics, energy use, and compliance reports from anywhere—no need to be on-site.

What about reliability? CleanStream’s systems are built with redundancy in mind. If a sensor fails, the AI switches to backup data sources to keep the system running. They also offer predictive maintenance alerts: "The system will tell you, ‘This pump bearing will need replacement in 45 days,’ so you can schedule downtime during off-peak hours," Tae-Young explains. For factories where unplanned shutdowns cost thousands per hour, that’s a game-changer.

CleanStream’s client base is diverse, from tech parks to hospitals, but they’re especially popular with circuit board recycling facilities—a niche industry with highly toxic wastewater. "Circuit board recycling creates effluent with heavy metals like copper and lead," says Ji-Soo Han, a CleanStream sales rep. "Our AI-driven system can detect even trace amounts and adjust treatment in real time, ensuring compliance with the strictest regulations."

Not every business has the budget for high-tech AI systems or mega-capacity treatment plants. That’s where GreenWave Innovations steps in. This Incheon-based supplier focuses on cost-effective effluent treatment machine equipment that’s easy to install, operate, and maintain—perfect for small businesses, rural communities, and startups. Since 2018, they’ve made "affordable sustainability" their mission, and they’re winning over customers with prices that start at just ₩15 million (≈$11,000) for basic systems.

GreenWave’s bestseller is the EcoMini Effluent Treatment System , a plug-and-play unit that requires minimal setup. Designed for businesses with low to moderate wastewater volumes (50-500 cubic meters per day), the EcoMini uses a simplified wet process equipment approach: screening, sedimentation, biological treatment, and disinfection. It’s not the most advanced system on the market, but it’s reliable and meets most local discharge standards. "We work with a lot of family-run restaurants and small hotels," says Soo-Jin Kwon, GreenWave’s founder. "They don’t need all the bells and whistles—they just need something that works, doesn’t break the bank, and doesn’t require a PhD to run."

GreenWave also offers a Compact Filter Press Equipment that’s lightweight and easy to operate. Unlike industrial models that need dedicated operators, theirs comes with a user-friendly control panel and clear instructions. "We include a training video with every purchase," Soo-Jin says. "Most of our customers set it up themselves in a day or two, without needing to hire a technician."

But affordability doesn’t mean cutting corners. GreenWave uses durable, corrosion-resistant materials like stainless steel for tanks and pipes, ensuring a lifespan of 10+ years. They also offer a 3-year warranty and a network of local service partners for maintenance. "We have a customer in a small fishing village in Gangwon Province," Soo-Jin recalls. "Their old treatment system kept breaking down, and the nearest technician was 3 hours away. We installed our EcoMini, and two years later, they’ve only needed one service call—and that was just to ｒｅｐｌａｃｅ a filter cartridge."

GreenWave’s systems are also flexible. Need to expand? They offer modular add-ons, like extra sedimentation tanks or UV disinfection units, so you can upgrade as your business grows. And with energy-efficient motors and low chemical requirements, their operating costs are among the lowest in the industry. For businesses just starting out or looking to comply with regulations without overspending, GreenWave is a solid, no-nonsense choice.