Top 10 Wastewater treatment plant Suppliers, Manufacturers, Wholesalers and Traders in Sweden

Founded in 1992 in Gothenburg, NordicWater Tech AB has grown from a small engineering firm to one of Sweden's most trusted names in wastewater treatment. With a focus on both industrial and municipal clients, the company prides itself on delivering tailored solutions that balance performance with environmental responsibility. What sets NordicWater apart is its expertise in effluent treatment machine equipment designed to handle complex industrial waste—think heavy metals, chemicals, and organic compounds from sectors like manufacturing, mining, and food processing.

Their product lineup includes state-of-the-art dry process systems, which use minimal water and energy, making them ideal for water-scarce regions or facilities aiming to reduce their carbon footprint. For example, their DryFlo™ series combines filtration, evaporation, and solid separation technologies to treat wastewater with up to 95% efficiency, leaving behind dry sludge that can often be repurposed as fertilizer or construction material. NordicWater also offers comprehensive after-sales support, including maintenance training and remote monitoring, ensuring their equipment operates at peak performance for decades.

In recent years, the company has doubled down on sustainability, partnering with Swedish universities to develop AI-driven process optimization tools. These tools analyze real-time data from treatment plants to adjust settings automatically, reducing energy use by up to 20%. It's this blend of innovation and practicality that has made NordicWater a go-to for clients across Europe, from small towns to multinational corporations.

Based in Stockholm, Svea Environmental Solutions has built a reputation for crafting custom wastewater treatment plants that meet unique client needs. Since 2005, they've worked with industries ranging from pharmaceuticals to pulp and paper, earning a name for flexibility and technical excellence. Their team of 120+ engineers and environmental scientists collaborates closely with clients to design systems that align with local regulations, budget constraints, and long-term sustainability goals.

At the core of Svea's offerings is their diverse range of water process equipment , including both wet and dry process systems. For industrial clients with high-volume, high-contaminant wastewater, their wet process solutions—such as biological reactors and membrane filtration units—excel at breaking down organic matter and removing fine particles. Meanwhile, their dry process equipment, like thermal evaporators and centrifugal separators, is favored for its ability to handle toxic or non-biodegradable substances with minimal water usage.

Svea also stands out for its commitment to green manufacturing. All their equipment is built using recycled steel and aluminum where possible, and their Stockholm factory runs entirely on renewable energy. In 2023, they launched the "Zero-Waste Plant" initiative, a modular treatment system that recovers 90% of wastewater for reuse in industrial processes, drastically reducing freshwater intake. This focus on circularity has made them a partner of choice for companies aiming to achieve net-zero water footprints.

EcoFlow Systems Sweden, headquartered in Malmö, specializes in small to medium-scale wastewater treatment solutions, making them a top pick for municipalities, hotels, and small industrial facilities. Founded in 2010 by a team of environmental engineers, the company recognized a gap in the market for affordable, easy-to-install systems that don't compromise on quality. Today, their compact water process equipment is installed in over 30 countries, from rural Swedish villages to eco-resorts in the Mediterranean.

One of EcoFlow's most popular products is the MiniFlow™ series—a modular treatment plant that can be assembled on-site in days, not weeks. These systems combine biological treatment, sedimentation, and disinfection in a single unit, handling flows from 50 to 500 cubic meters per day. For clients with limited space, their vertical design minimizes footprint, while smart sensors and automated controls reduce the need for constant monitoring. EcoFlow also offers a range of effluent treatment machine equipment for post-treatment polishing, ensuring water meets EU discharge standards or can be safely reused for irrigation or toilet flushing.

Sustainability is woven into every aspect of EcoFlow's business. Their equipment is designed to use 30% less energy than traditional systems, and they offer a "Carbon Offset Program" where a portion of each sale funds reforestation projects in Sweden. In 2022, they achieved B Corp certification, a testament to their commitment to social and environmental responsibility.

With roots dating back to 1985, VattenMiljö Group is one of Sweden's oldest and most established environmental technology companies. Headquartered in Gothenburg, they've expanded from wastewater treatment to offer a full suite of solutions, including air pollution control system equipment , making them a one-stop shop for industrial clients looking to address multiple environmental challenges.

VattenMiljö's wastewater division is particularly renowned for its effluent treatment machine equipment, which is designed to handle heavy industrial waste from sectors like automotive manufacturing, metalworking, and chemical production. Their flagship product, the VattenPure™ 5000, is a high-capacity system that uses a combination of chemical precipitation, activated carbon filtration, and reverse osmosis to remove over 99% of contaminants, including heavy metals like lead and mercury. For clients with variable wastewater composition, their adaptive control software adjusts treatment parameters in real time, ensuring consistent performance even as input conditions change.

What truly distinguishes VattenMiljö, however, is their integrated approach to environmental management. Many clients opt for their "EcoSuite" package, which pairs wastewater treatment with air pollution control systems—such as scrubbers and electrostatic precipitators—to reduce both water and air emissions. This holistic strategy not only simplifies compliance but also lowers operational costs by streamlining maintenance and monitoring. VattenMiljö is also a leader in renewable energy integration; their largest treatment plants are often powered by on-site solar panels or biogas generated from wastewater sludge, turning waste into a resource.

Scandinavian Cleantech AB, based in Uppsala, has made a name for itself by tackling some of the toughest wastewater challenges in Sweden. Since 2012, they've focused on serving industries with high-pollutant wastewater, such as textile dyeing, leather tanning, and electronics manufacturing, where traditional treatment methods often fall short.

Their secret weapon? Advanced effluent treatment machine equipment that leverages cutting-edge technologies like nanofiltration and electrochemical oxidation. For example, their NanoClean™ system uses specially designed membranes to filter out microplastics and synthetic dyes that standard filters miss, while their ElectroOx™ units use electricity to break down toxic organic compounds into harmless byproducts like water and carbon dioxide. These innovations have made Scandinavian Cleantech a partner of choice for companies in the EU, where regulations on microplastic discharge are becoming increasingly strict.

Sustainability is at the forefront of their mission. All their equipment is engineered to recover valuable resources from wastewater—such as salts, metals, and even reusable chemicals—turning waste into a revenue stream for clients. In 2021, they launched a "Waste-to-Resource" program that helps industrial facilities monetize recovered materials, offsetting treatment costs while reducing environmental impact. Scandinavian Cleantech also invests heavily in R&D, with a 20-person team dedicated to developing next-gen solutions, including AI-powered predictive maintenance tools that reduce downtime and extend equipment lifespan.

BalticWater Innovations, located in Malmö, has carved a niche in the market by focusing on coastal and marine wastewater treatment—a critical need in Sweden, where thousands of coastal communities and ports discharge wastewater into the Baltic Sea. Since 2015, they've developed specialized water process equipment that addresses the unique challenges of treating saltwater-influenced wastewater and preventing nutrient runoff, which contributes to algal blooms.

Their CoastalClean™ system is a compact, floating treatment plant designed for marinas, fishing ports, and small coastal towns. It uses a combination of biological filtration and denitrification to remove nitrogen and phosphorus—key nutrients that harm marine ecosystems—while also treating organic matter and pathogens. For larger ports, their MobilePort™ units can be deployed temporarily during peak seasons, ensuring compliance with strict Baltic Sea protection agreements. BalticWater also offers custom dry process equipment for industrial clients in coastal areas, such as fish processing plants, which generate high-salt, high-protein wastewater that traditional systems struggle to handle.

BalticWater's commitment to marine conservation extends beyond equipment. They partner with local environmental organizations to fund research on Baltic Sea health, and a portion of every sale goes toward seagrass restoration projects. Their team also provides training for local operators, ensuring that equipment is maintained properly and communities have the skills to manage their wastewater long-term.

As its name suggests, GreenTech Water Systems, based in Lund, is laser-focused on sustainable innovation. Founded in 2018 by a group of university researchers, the company has quickly gained attention for its groundbreaking water process equipment that uses natural processes—like constructed wetlands and biochar filtration—to treat wastewater with minimal energy input.

GreenTech's flagship product, the EcoWetland™, is a hybrid system that combines artificial wetlands with modular treatment units, mimicking the way natural ecosystems purify water. Wastewater flows through a series of planted beds, where plants, bacteria, and fungi break down pollutants, while gravel and sand filters remove solids. The result is treated water that meets EU drinking water standards in some cases, making it ideal for reuse in agriculture or landscape irrigation. For clients with limited land, their VerticalWetland™ design stacks treatment layers vertically, reducing footprint by up to 70%. GreenTech also offers complementary dry process equipment for clients who need to pre-treat high-strength wastewater before it enters the wetland system, ensuring optimal performance.

What makes GreenTech stand out is its emphasis on low-cost, low-maintenance solutions—particularly valuable for rural communities and developing countries. Their systems require no electricity to operate (though optional solar-powered pumps are available), and maintenance is limited to occasional plant trimming and filter cleaning. In 2023, they won the Swedish Environmental Innovation Award for their work in providing clean water to remote villages in northern Sweden, demonstrating that sustainability and accessibility can go hand in hand.

Northland Environmental Engineering, based in Umeå, serves the unique needs of northern Sweden's industries and communities, where cold climates and remote locations present special challenges for wastewater treatment. Since 2001, they've developed water process equipment that operates efficiently in sub-zero temperatures, ensuring reliable performance even in the harshest winters.

One of Northland's key innovations is their ArcticTreat™ system, which uses insulated tanks, heat recovery, and specialized bacteria strains adapted to cold environments to maintain treatment efficiency in temperatures as low as -20°C. This is a game-changer for mining operations, forestry camps, and small towns in Lapland, where traditional systems often freeze or require expensive heating. For industrial clients, their cold-resistant effluent treatment machine equipment includes heated membrane units and freeze-protected chemical dosing systems, ensuring that even heavy industrial waste is treated effectively year-round.

Northland also specializes in mobile treatment solutions, critical for remote construction projects and temporary industrial sites. Their MobileTreat™ trailers can be transported by truck to even the most isolated locations, providing on-site wastewater treatment with minimal setup time. These units are often used in conjunction with their dry process equipment , which reduces wastewater volume by up to 80% through evaporation, minimizing the need for off-site disposal.

As a company rooted in northern Sweden, Northland is deeply committed to preserving the region's fragile ecosystems, including the Arctic tundra and boreal forests. Their equipment is designed to have minimal environmental impact, with low noise levels, small footprints, and materials that blend into the landscape.

Stockholm WaterTech is a dynamic startup that has taken the Swedish wastewater industry by storm since its founding in 2017. Backed by venture capital and university research grants, the company is focused on leveraging digitalization and IoT to create smarter, more efficient water process equipment .

At the heart of Stockholm WaterTech's offerings is their SmartTreat™ platform, which integrates sensors, AI, and cloud connectivity to optimize every stage of wastewater treatment. Clients can monitor real-time performance via a user-friendly dashboard, receive alerts for potential issues, and even allow the system to self-adjust treatment parameters to improve efficiency. For example, their AI algorithms can predict spikes in wastewater flow or contaminant levels based on historical data, adjusting aeration, chemical dosing, and filtration rates proactively to maintain compliance and reduce costs. Their effluent treatment machine equipment, such as the SmartFilter™ series, uses IoT-enabled sensors to monitor filter performance and automatically trigger backwashing when needed, extending filter life and reducing maintenance.

Stockholm WaterTech also offers a range of dry process equipment designed for urban environments, where space is at a premium. Their VerticalFlow™ systems stack treatment processes vertically, fitting into tight urban lots, and their heat recovery units capture energy from wastewater to heat nearby buildings—a sustainable solution that aligns with Stockholm's goal of becoming fossil-fuel-free by 2040. With a team of data scientists and environmental engineers, the company is constantly refining its technology, making it a top choice for forward-thinking clients looking to future-proof their wastewater treatment infrastructure.

Öresund Environmental Technologies, with offices in Helsingborg and Copenhagen, bridges the gap between Sweden and Denmark, serving clients across the Öresund region and beyond. Since 2010, they've built a reputation for cross-border collaboration and expertise in both Swedish and EU environmental regulations, making them a trusted partner for multinational companies operating in Scandinavia.

Öresund's wastewater solutions are known for their versatility, with water process equipment that can be adapted to meet the specific standards of both countries. Their DualCompliance™ systems are pre-engineered to satisfy both Swedish Miljöbalken and Danish Miljøbekendtgørelse regulations, simplifying compliance for clients with operations on both sides of the border. For industrial clients, their effluent treatment machine equipment includes specialized units for pharmaceutical manufacturing, which must remove trace organic compounds to meet strict EU guidelines, and food processing, which requires high-capacity solids separation and fat removal.

Öresund also stands out for its focus on resource recovery. Their NutriCycle™ system extracts phosphorus and nitrogen from wastewater and converts them into high-quality fertilizers, which are sold to local farmers—a circular economy approach that turns waste into a valuable product. They've also developed partnerships with biogas producers to process wastewater sludge into renewable energy, further reducing the environmental impact of treatment.

As a border-region company, Öresund brings a unique perspective to environmental problem-solving, combining Swedish engineering precision with Danish innovation. Their team of multilingual experts ensures seamless communication with clients across Scandinavia, and their location in the Öresund tech hub gives them access to cutting-edge research from both countries' leading universities.