Contributing to a more sustainable and resilient future by
Helping industries with today’s water management challenges
With over 6000 water treatment references in various industries, NSI is your experienced partner.
Food & beverage
Water is a critical resource in the food and beverage market, where increasingly demanding environmental requirements have given rise to new technologies and working practices to create a more sustainable way of operating food and beverage plants.
- Industrial
- Industrial
- Industrial
- Industrial
- Industrial
VINNYTSIA Poultry farm – turning factory wastewater into clean effluent
Pharma & personal care
Whether you need purified water, water for injection, clean steam or other process water solutions we have decades of experience in using a variety of technologies to treat water to the spec you need
- Industrial
Pulp & paper
As pulp and paper water treatment specialists, we understand the vital role water plays throughout the and tissue production processes—from pulping to final product finishing.
- Industrial
Recycled board mill effluent treatment plant
More about this referenceEnergy
We understand the growing importance of sustainable water management in the energy sector. Whether you’re producing biofuels, hydrogen, or managing upstream or downstream operations, water plays a vital role—from processing and cooling to effluent treatment and reuse.
- Industrial
- Industrial
- Industrial
- Industrial
Municipal drinking water
We provide end-to-end solutions for municipal drinking water, ensuring safe, clean water and sustainable management. From sourcing and treatment to distribution and monitoring, we cover the entire water cycle together with Saur Group.
- Municipal
- Municipal
Andijk III Water Treatment Plant (PWN)
- Municipal
Mayflower Water Treatment Works (South West Water)
Municipal wastewater
Effective wastewater management is key to protecting health, the environment, and water resources. We specialize in advanced solutions for collecting, treating, and disposing of wastewater, transforming it into a valuable resource for a cleaner, healthier world.
- Municipal
- Municipal
Effective wastewater management is key to protecting health, the environment, and water resources. At NSI, we specialize in advanced solutions for collecting, treating, and disposing of wastewater, transforming it into a valuable resource for a cleaner, healthier world.
- Municipal
- Municipal
- Municipal
Our global impact
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Discover our different types of solutions
We provide a unique portfolio of smart game-changing solutions in sustainable water use, energy and resource recovery combined with our services for a sustainable and resilient future.
- Municipal
- Industrial
Cellulose recovery
- Wastewater
- Resource Recovery
From toilet paper to renewable resource Wastewater contains valuable materials – including cellulose from toilet paper. With our CellCap® solution, we transform this residual (...)
- Industrial
Demineralized Water Treatment
- Process water
- Industrial water
At Nijhuis Saur Industries (NSI), part of Saur Group, we deliver high-performance demineralized water treatment solutions for industrial steam and heat systems. From boiler feedwater (...)
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- Municipal
- Industrial
Digital solutions
- PFAS
- Micropollutants
- Wastewater
- Drinking water
- Source water
- Rainwater
- Resource Recovery
- Sludge
- Process water
- Industrial water
In today’s rapidly evolving technological landscape, digital solutions are essential for optimizing water management processes. At Saur, we leverage advanced digital tools and (...)
- Industrial
- Municipal
Water consultancy services
- PFAS
- Micropollutants
- Process water
- Drinking water
- Industrial water
- Wastewater
- Rainwater
- Source water
- Resource Recovery
- Sludge
If you are reviewing your (waste)water management strategy and treatment objectives, you may run into several questions. To meet sustainability targets, optimize or debottleneck (...)
- Industrial
- Municipal
Biogas desulfurization
- Wastewater
- Resource Recovery
- Industrial water
- Sludge
Where organic material is anaerobically degraded, biogas will be produced. In order to utilize this biogas, it needs the right quality, pressure and humidity. H2S is a specific (...)
- Municipal
- Industrial
Digestate treatment
- Industrial water
- Resource Recovery
- Sludge
- Wastewater
At Nijhuis Saur Industries (NSI), part of Saur Group, we help agricultural, municipal and industrial clients turn digestate from biogas plants into valuable resources. Our tailored (...)
- Industrial
- Municipal
Sludge treatment
- Sludge
Efficient sludge treatment is essential for sustainable and cost-effective wastewater treatment. At Nijhuis Saur Industries, part of Saur Group, we offer advanced technologies (...)
- Industrial
- Municipal
Membrane filtration
- Process water
- Industrial water
- PFAS
- Micropollutants
- Wastewater
- Drinking water
- Source water
- Rainwater
At Nijhuis Saur Industries (NSI), part of Saur Group, we deliver membrane filtration solutions that drive water reuse, resource recovery, and environmental compliance. Our membrane (...)
- Industrial
- Municipal
Aerobic treatment
- Industrial water
- Wastewater
Aerobic biological treatment is a process that uses oxygen and microorganisms to remove COD and BOD, breaking down organic pollutants present in the wastewater into simpler, non-harmful (...)
- Industrial
- Municipal
Anaerobic wastewater treatment
- Industrial water
- Resource Recovery
Anaerobic wastewater treatment is a very effective and sustainable way of removing biodegradable organic compounds (COD/BOD) from wastewater without using oxygen. As the organic (...)
- Municipal
- Industrial
Filter and screening systems
- Wastewater
- Drinking water
- Industrial water
Filter and screening systems remove large particles from surface water and wastewater. By capturing debris early, they prevent pipe blockages and protect your equipment, helping (...)
- Industrial
- Municipal
Coagulation & Flocculation
- Industrial water
- Process water
- Drinking water
- Wastewater
Our coagulation and flocculation solutions are engineered to support efficient solid-liquid separation across industrial and municipal applications.
- Municipal
- Industrial
Dissolved Air Flotation solutions (DAF)
- Drinking water
- Wastewater
- Industrial water
- PFAS
Our DAF systems are engineered to provide high removal efficiency, operational flexibility, and reliable performance under varying conditions.
Keep your business flowing - go mobile
Going mobile is an ideal solution – be it emergencies, planned projects (commissioning, refurbishment, or maintenance), or even multi-tear periods requiring treated water supply. Our Mobile Water Solutions are ready to address your unique water needs with agile and effective solutions.
Discover our latest NSI NEWS
PRESS RELEASE: Nijhuis Saur Industries expands clean water expertise with the acquisition of Grünbeck Waterbehandeling
NSI Blog – Blog 3 ‘Waste to Energy’ – Sharing best practices in digestate and water treatment: every project is unique, every solution comes with a challenge
From innovation to impact: Highlights from WEFTEC 2025