Nijhuis Saur Industries (NSI), the Industrial Water arm of Saur formed in 2020, completed two major acquisition in March 2022:
- the US-based Aqua-Chem a leading provider of engineered water purification solutions to blue-chip customers in over 40 countries
- Flootech, a leading provider of state-of-the-art water treatment technologies, process solutions and services for industrial and municipal clients in Finland
Both steps are part of the strategic ambition of NSI to be a provider of innovative, effective and sustainable water and wastewater treatment solutions to industrial customers globally.
Aqua-Chem will become the North American platform and water purification center of excellence in growing end-markets such as pharmaceuticals & life sciences, beverage, energy
With Flootech the group is expanding its presence in Scandinavia to support the fast growing demand for blue-green infrastructure solutions in growing or emerging industries like paper & pulp, power, bio-fuel and renewable energy around the world.
About Nijhuis Saur Industries
Nijhuis Saur Industries, together with Econvert, Unidro, Nortech, Riventa, Byosis, PWNT, Sodai and now Aqua-Chem and Flootech, provides integrated and turnkey customized water solutions. We help industries to comply with ‘reduce, reuse and recover’ and by doing so we contribute to the climate transition, the circular economy and build a more resilient, sustainable, and inclusive future.
The Nijhuis Saur Industries multidisciplinary teams develop, design, manufacture and implement smart and breakthrough solutions based on our extensive product range and innovative and best available technologies (BAT), such as rental, mobile water treatment and financing solutions. Our goal is to help our customers reduce their environmental footprint, combine productivity and energy efficiency, improve quality, health and safety, while reducing life cycle costs.
Nijhuis Saur Industries, through Unidro, acquires Sodai S.p.A. – an engineering and water management company operating in Italy.
The experience and activity of Sodai is focused on O&M services provided to first class clients in Italy to improve sustainability and reduction of environmental footprint. Moreover, the company developed in-house some specific technologies with application on the waste water treatment and reuse.
All this makes the Sodai business model very synergic with Unidro and the integration of the two companies will boost the growth of the Italian platform of Nijhuis Saur Industry.
Sodai acquisition press release.
Saur adopts a purpose and unveils a new brand identity in support of its new ambition to become the champion of the water transition by 2030.
It is the expression of a dynamic company, attentive to its stakeholders and focused on the future. With its brand signature, Mission Water, Saur reaffirms its commitments to act, campaign and unite all players, to create a more secure world for future generations.
Adopting the new logo and reflecting a deep innovation in our communication and brand style gives Unidro the opportunity, two years after we become part of Saur as member of the Nijhuis Saur Industry team, to give our stakeholders a strong sign of the innovation process we are part of.
The new visual identity has been designed to express Saur mission and corporate plan. Both are represented by a stylized and consistently balanced symmetrical motion; a perpetually developing force that looks to the future and listens to its ecosystem. They also symbolize the combined strengths of Saur and its ability to offer confidence and protection for today and tomorrow. Its color reasserts Saur’s fundamental water industry expertise. Its shape represents the unity of our Group and its commitment to actively involving all stakeholders in saving and conserving water resources. The overall impression is of a wave in motion on the surface of the water.
Saur press release.
“Boosting Phase III”, a project awarded to JGC Corporation in 2016 and by far the largest active gas production area in Algeria, has reached the final completion phase.
After almost two years of construction, commissioning and start-up activities under the supervision of Unidro Commissioning Team, three Produced Water Treatment Plants and three Water Filtration Plants are now in operation and ready to be handed over to Client.


With the acquisition of PWNT (the commercial subsidiary of the North Holland drinking water company and nature manager PWN) and Byosis (specialists in delivering ammonia recovery systems, pasteurization units and gas scrubbers), Nijhuis Saur Industries is strengthening its portfolio for the purification of drinking water and it is expanding its leading global position in resource recovery.
The new available technologies in the Group widen the possibilities for Unidro to provide its customers with the best, most innovative solutions to meet the challenge of closing the water cycle.
Managing water is increasingly important for industries around the world. We help our Customers take their performance to new levels economically and ecologically sustainable. From industrial water production to effluent treatment and re-use, we apply the latest technologies to Customer’s context in order to optimize their water cycle and water footprint.
PWNT acquisition press release.
Byosis acquisition press release.
Two new contracts in the O&G business have been awarded to Unidro by the JV of Saipem (Italy), Chiyoda (Japan) and Daewoo (Korea) in the frame of the seventh Nigerian LNG train Project to be executed in Bonny Island, Nigeria.
The POs cover the supply of a Demineralised Water Production Unit, based on ion exchange technology, and an Amine Filtration Unit. Both units will be delivered in 2022.
This order confirms the strong presence of Unidro in the largest international LNG projects of the last few years, including Qatar, Mozambique, Australia, Indonesia, PNG.
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Unidro is going to strengthen its presence into the U.S.A. by adding the fourth train to the existing Condensate Carbon Filter Package (supplied in 2015) in Cedar Bayou, TX, USA, Chevron Phillips’s Plant.
Assiut National Oil Processing Company (ANOPC) is realizing a new Hydrocracking Complex for the Assiut refinery in Egypt. Different EPC contractors are involved in this large project, including Technip FMC, Siirtec-Nigi, ENPPI, Petrojet and others.
Nijhuis-Saur Industry Group is very much involved in this strategic project as technology provider and equipment supplier. Namely, the design and supply of the complete WWT system for the new Hydrocracker was awarded to Nijhuis earlier this year and a Spent Caustic Treatment Package (based on Siemens WAO technology) is being realized by Unidro.
Additionally, Unidro received multiple orders for highly critical equipment thanks to its proven expertise that combine our shop manufacturing skills, the excellent project management services and undisputed finished products’ quality.
The scope awarded to Unidro includes internals of Degassing Box and Sulphur Pit, Claus Thermal Reactor Package, Claus Burner, Thermal Incinerator, Heat Exchangers and Ejectors for vacuum systems
These days Unidro has been awarded by ENPPI the supply of n.1 Reducing Reactor and n.2 First & Second Converters complete with castable refractory.
The delivery of all our scope is expected in 2022 and all projects are being executed in the two operating centers in the Nedherlands (Doetinchem) and Italy (Milano, Bergamo and Novara).
Unidro has been engaged by QP through the Contractor Worley, to prepare a Front-End Engineering Design for the revamping of the Wastewater Treatment Plant at the Mesaieed Refinery, in Qatar.
Unidro was selected due to its wide experience in handling Projects of similar complexity and serving the highly demanding O&G market. Both Qatar Petroleum and the EPC Contractor expressed great appreciation for the extremely proactive and solution-oriented support that Unidro granted throughout this entire FEED phase.
Unidro presence in Qatar dates back 20 years and more than 30 units have been supplied and are now in operation in different industrial facilities in this that is the first LNG export country in the world.