Finding the right wastewater treatment plant manufacturer in Europe is not always easy. There are many suppliers, and each one has a different area of expertise. Some are specialists on membranes, and some are more focused on pumps, sludge treatment, plant design, or full plant operation.

EU water rules are also getting stricter. The recast Urban Wastewater Treatment Directive is effective from 1 January 2025. It brings new targets for micropollutant removal and energy use at larger treatment plants. This is where it becomes crucial for the plant owner to select a suitable supplier. The right partner can help reduce energy consumption, comply with discharge limits, and prevent expensive changes later on.

We reviewed 10 wastewater treatment plant manufacturers in Europe based on their products, services, market reach, and areas of strength. This list can help you compare the main options before starting your next project.

Quick Comparison

Company	Main Specialty	Best For
Oxymo Technology	MABR, MBR, and UF membranes	Low-energy treatment upgrades
Veolia Water Technologies	Turnkey plants and biogas systems	Large and complex projects
Alfa Laval	Decanter centrifuges and sludge systems	Sludge dewatering
SUEZ	Plant design, construction, and operation	Municipal projects
Xylem	Pumps, UV, and ozone systems	Equipment and plant upgrades
EnviroChemie	Industrial treatment plants	Industrial wastewater
KSB SE & Co. KGaA	Pumps and valves	Pumping stations
Huber SE	Screens and sludge treatment	Pre-treatment and sludge work
B&P Water Technologies	Skid-mounted treatment plants	Small industrial sites
Aqualia	Plant operation and biogas recovery	Public utility projects

1. Oxymo Technology

Key Products & Services: MABR systems, flat sheet MBR membranes, hollow fiber UF modules, membrane distillation, and packaged sewage treatment plants.

Industries Served: Municipal sewage, textile, paper, food, dairy, pharmaceutical, slaughterhouse, and chemical industries.

Company Overview

Oxymo Technology develops and makes membrane-based water and wastewater treatment systems. Its main focus is on MABR, MBR, and ultrafiltration technology. The company also works with several membrane materials, including PVDF, PVC alloy, PAN, and PS/PES. Its systems are used for both municipal sewage and industrial wastewater.

For buyers looking for lower-energy treatment, Oxymo is worth considering. Its MABR technology sends oxygen directly to the biofilm. This can reduce the need for traditional aeration. Research on MABR technology has reported very large energy-saving potential compared with conventional activated sludge systems.

Oxymo has completed hundreds of water treatment projects in more than 40 countries. Its production site follows ISO 9001 and ISO 14001 systems, while its membranes carry CE certification.

What Makes Oxymo Technology Stand Out?

Oxymo combines membrane production with project support. This can make the buying process easier for customers who want one supplier for several parts of a treatment system.

• MABR, flat sheet MBR, hollow fiber UF, and membrane distillation in one portfolio.
• Flat sheet membranes designed for good flow with low air scouring.
• Some systems can run for long periods between offline cleaning cycles.
• Package sewage treatment plants can include design, installation, and after-sales support.
• Patented membrane materials and ISO-certified production.
• Solutions for food, dairy, pharmaceutical, textile, slaughterhouse, and other industries.

For projects where energy use is a major concern, Oxymo Technology can be a strong option.

2. Veolia Water Technologies

Headquarters: Saint-Maurice, France

Key Products: Wastewater treatment plants, standard treatment equipment, zero liquid discharge systems, and biogas systems.

Industries Served: Municipal water, oil and gas, power, food and beverage, and mining.

Company Overview

Veolia Water Technologies is one of the major names in the European water treatment market. The company is part of the wider Veolia group and works with both municipal and industrial customers. Its teams handle large treatment projects as well as standard treatment units. This gives customers several options based on plant size and process needs.

Veolia also offers zero liquid discharge systems. These systems can help factories reuse treated water instead of sending it to discharge. Another area is sludge treatment and energy recovery. Methanization can turn sludge into biogas, which may then be used at the plant or sent to the grid. This makes Veolia a good fit for large and complex wastewater projects where water reuse and energy recovery are important.

3. Alfa Laval

Headquarters: Lund, Sweden

Key Products: Decanter centrifuges, separators, heat exchangers, and pumps.

Industries Served: Municipal wastewater, food and water, energy, and marine.

Company Overview

Alfa Laval has been serving industrial customers from Sweden since 1883. In wastewater treatment, the company is best known for equipment used in sludge treatment and dewatering.

Its decanter centrifuges can help remove water from municipal and industrial sludge. This reduces the amount of sludge that needs to be handled, stored, or transported. Alfa Laval has a global presence and works with customers in around 100 countries. For plants that need to improve sludge handling, Alfa Laval is a strong supplier to consider.

4. SUEZ

Headquarters: Puteaux, Paris La Défense, France

Key Products: Water and wastewater plant design, construction, operation, recycling, and resource recovery services.

Industries Served: Municipal water, industrial customers, and hazardous waste.

Company Overview

SUEZ is a major water and environmental services group in Europe. Unlike suppliers that focus mainly on equipment, SUEZ can design, build, and operate treatment plants. The company has about 40,000 employees across 40 countries. It works with municipal and industrial customers on water and wastewater projects. One example is the Mureaux wastewater treatment plant near Paris. The plant treats around 20,600 cubic meters of sewage each day.

In 2019, the site became the first plant in the Île-de-France region to inject biomethane into the gas network. This shows how wastewater plants can also become sources of useful energy. For municipalities looking for a long-term partner for plant design and operation, SUEZ is a strong choice.

5. Xylem

Headquarters: Washington, D.C., USA

Key Products: Flygt pumps, Wedeco UV and ozone systems, and Sanitaire biological treatment systems.

Industries Served: Municipal utilities, industrial sites, and commercial buildings.

Company Overview

Xylem is a global water technology firm with deep roots among wastewater treatment plant manufacturers in Europe. Its Flygt brand is well known for wastewater pumps. The company also supplies UV and ozone treatment through Wedeco and biological treatment systems through Sanitaire.

Xylem’s Flygt pump range is developed and made in Sweden. The company has supplied Flygt pumps for major wastewater projects in Europe, including an upgrade at one of the largest wastewater plants near Paris. Its Wedeco UV systems are also used at a large wastewater plant in Vigo, Spain. Xylem is a useful option for plants that need pumps, disinfection equipment, or other treatment equipment as part of an upgrade.

6. EnviroChemie

Headquarters: Roßdorf near Darmstadt, Germany

Key Products: Physico-chemical, biological, and membrane treatment plants, compact systems, and water treatment chemicals.

Industries Served: Food processing and other manufacturing industries.

Company Overview

EnviroChemie has been working in water treatment since 1976. The German company focuses strongly on industrial wastewater treatment. It offers several treatment methods, including physico-chemical treatment, biological treatment, and membrane systems. It also supplies compact treatment units and chemicals.

The company reports more than 30,000 plants sold and more than 1,500 employees at 16 locations. One useful feature is its technology center. Customers can test treatment methods before choosing a system for their site. This makes EnviroChemie a good choice for manufacturers that have complex wastewater and need a treatment system built around their process.

7. KSB SE & Co. KGaA

Headquarters: Frankenthal, Germany

Key Products: Wastewater pumps, submersible pumps, valves, and SupremeServ service.

Industries Served: Water and wastewater, energy, building services, chemicals, and mining.

Company Overview

KSB has a long history in pump technology. The company was founded in Frankenthal in 1871 and now has more than 16,000 employees. For wastewater plants, KSB mainly supplies pumps and valves. Its equipment is used in pumping stations and other parts of water and wastewater networks.

One major example is its work on the Emscher sewer project in Germany. KSB supplied 21 pumps for two pumping stations connected to the project. KSB is therefore a good option when reliable wastewater pumping is a key part of the project.

8. Huber SE

Headquarters: Berching, Germany

Key Products: ROTAMAT screens, grit treatment, sludge treatment, filtration, flotation, and MBR systems.

Industries Served: Municipal and industrial wastewater.

Company Overview

Family-owned HUBER SE, active since 1872, stands as a respected name among wastewater treatment plant manufacturers in Europe. The company has more than 1,300 employees and focuses on equipment for wastewater plants. Its ROTAMAT screening systems are used to remove solids before they can damage or affect downstream treatment equipment.

HUBER also supplies systems for grit removal, sludge treatment, filtration, flotation, and membrane bioreactor processes. Its stainless steel equipment is well suited to demanding pretreatment and sludge treatment work.

9. B&P Water Technologies

Headquarters: Rome, Italy

Key Products: Skid-mounted chemical-physical plants, oil separation systems, and reverse osmosis systems.

Industries Served: Iron and steel, food, chemicals, pulp and paper, and mining.

Company Overview

B&P Water Technologies is an Italian engineering firm active among wastewater treatment plant manufacturers in Europe. The company holds ISO 9001 certification and works with industries that produce different types of difficult wastewater.

Its skid-mounted systems can treat oils, paints, solvents, and suspended solids. Because many systems are pre-assembled and tested before delivery, installation at the customer’s site can be faster. This approach can work well for small and medium-sized industrial sites that need a compact treatment plant.

10. Aqualia

Headquarters: Madrid, Spain

Key Products: Water cycle management, wastewater plant design and operation, and biogas recovery.

Industries Served: Municipal, agricultural, and industrial sectors.

Company Overview

Aqualia is a major Spanish water services company with operations in several countries. The company works across the water cycle, including wastewater treatment plant construction and operation. It also has experience with energy recovery from wastewater. A Global Water Intelligence ranking places 

Aqualia fourth in Europe by population served. The company serves about 45 million people across 18 countries. At the Valdebebas wastewater treatment plant in Madrid, Aqualia plans to use its patented ABAD Bioenergy technology to produce biomethane. Projects like this show the growing link between wastewater treatment and energy recovery.

Final Thoughts

Choosing among wastewater treatment plant manufacturers in Europe takes more than comparing equipment prices. Buyers should look at process guarantees, energy use, maintenance needs, and proven project results. It is also important to check local service support, spare parts, and help with compliance.

The right partner can lower operating risks while helping improve water quality and resource recovery. For membrane-based projects, Oxymo Technology offers a focused approach to system design and manufacturing. Its project experience covers municipal, industrial, and compact wastewater treatment applications across different markets.

Contact Oxymo Technology to discuss your wastewater profile, treatment goals, and preferred plant setup. A technical review can help you choose the right membrane system before you make a purchase decision.

Website: https://oxymotec.com/

Email: oxymo@oxymembrane.com

Contact No.: +86-13006353124

FAQs

Which company is best for membrane wastewater treatment?

Oxymo Technology is a strong option for MBR, UF, and MABR wastewater treatment systems. Its solutions are designed for both municipal and industrial wastewater projects. Before choosing a system, buyers should check the feedwater quality, flow rate, effluent limits, and total cost over the plant’s life.

How do I choose a wastewater treatment plant manufacturer?

Start by comparing the supplier’s treatment experience, project references, equipment quality, service network, and spare-part supply. Ask for proven project results and process guarantees. It is also important to compare energy, maintenance, and other operating costs before making a final choice.

What technologies are used in wastewater treatment plants?

Wastewater plants use a mix of treatment methods based on the type of wastewater and the required water quality. Common steps include screening, biological treatment, clarification, membrane treatment, filtration, disinfection, and sludge dewatering.

Can wastewater treatment plants support water reuse?

Yes. Many wastewater plants can produce treated water for reuse when the right extra treatment is added. Membranes, filtration, disinfection, and reverse osmosis can be used to meet different water reuse needs. The treatment level depends on the intended use of the recovered water.