Contact us

Your challenges

Municipalities today face increasing pressure to manage wastewater efficiently, safely, and sustainably, often with limited resources and aging infrastructure.

Outdated or overloaded wastewater infrastructure

Aging systems can't keep up with population growth or extreme weather, leading to frequent breakdowns and inefficiencies.

High maintenance costs and limited monitoring

Without smart monitoring tools, identifying issues is reactive and expensive, increasing operational costs and service delays.

Strict environmental regulations

New laws demand advanced treatment and higher water quality, which many systems aren't equipped to meet.

Community concerns over public health and water quality

To maintain public trust and protect both health and the environment, wastewater systems must reliably remove harmful pollutants such as PFAS, micropollutants, and nitrogen—substances that citizens rightly expect to be managed with the highest standards.

How can NSI meet your needs?

At NSI, we understand the daily challenges facing municipalities. Our municipal wastewater solutions are built to reduce your operational burden, enhance system performance, ensure regulatory compliance, and move toward a more sustainable future.

We combine decades of experience with smart technologies and a commitment to public health and environmental protection.

Dive into all our municipal wastewater solutions

Discover the NSI Municipal wastewater showroom:

From challenge to solution - click here

Our solutions

Discover all the solutions we offer to water authorities to treat municipal wastewater (sewage treatment).

See all solutions
  • Municipal
  • Municipal drinking water
  • Municipal wastewater
  • Industrial
  • Food & Beverage
  • Fish processing
  • Pulp & Paper
  • Pharma & personal care
  • Semiconductor industry
  • Mining and minerals
  • Energy

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
  • Mining and minerals
  • Energy
  • Semiconductor industry
  • Pulp & Paper
  • Pharma & personal care
  • Fish processing
  • Food & Beverage
  • Municipal
  • Municipal drinking water
  • Municipal wastewater

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.
Talk with our expert
Contact
  • Municipal
  • Municipal drinking water
  • Municipal wastewater
  • Industrial
  • Food & Beverage
  • Fish processing
  • Pulp & Paper
  • Pharma & personal care
  • Semiconductor industry
  • Mining and minerals
  • Energy

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.
  • Industrial
  • Mining and minerals
  • Energy
  • Semiconductor industry
  • Pulp & Paper
  • Pharma & personal care
  • Fish processing
  • Food & Beverage
  • Municipal
  • Municipal wastewater

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
  • Fish processing
  • Pulp & Paper
  • Food & Beverage
  • Pharma & personal care
  • Municipal
  • Municipal wastewater

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 (...)
  • Industrial
  • Mining and minerals
  • Energy
  • Semiconductor industry
  • Pulp & Paper
  • Pharma & personal care
  • Fish processing
  • Food & Beverage
  • Municipal
  • Municipal drinking water
  • Municipal wastewater

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
  • Food & Beverage
  • Fish processing
  • Pulp & Paper
  • Pharma & personal care
  • Semiconductor industry
  • Energy
  • Mining and minerals
  • Municipal
  • Municipal wastewater

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
  • Food & Beverage
  • Pulp & Paper
  • Energy
  • Municipal
  • Municipal wastewater

Biogas treatment

  • 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 (...)
  • Industrial
  • Mining and minerals
  • Energy
  • Semiconductor industry
  • Pulp & Paper
  • Pharma & personal care
  • Fish processing
  • Food & Beverage
  • Municipal
  • Municipal drinking water
  • Municipal wastewater

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 (...)
  • Municipal
  • Municipal drinking water
  • Municipal wastewater
  • Industrial
  • Food & Beverage
  • Fish processing
  • Pulp & Paper
  • Pharma & personal care
  • Semiconductor industry
  • Mining and minerals
  • Energy

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 (...)

References

  • Municipal
  • Municipal wastewater
Houten, the Netherlands

Full-Scale Ozone Installation – HDSR

More about this reference

Contact our experts