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Your challenges


Treating and reusing complex industrial water and wastewater streams

Industrial water is rarely simple. By reusing treated streams and recovering valuable resources, we turn complex wastewater into a circular opportunity.

Meeting strict discharge and water reuse regulations in industrial water applications

Discharge and reuse standards are strict for a reason. We remove harmful pollutants and ensure every drop meets compliance — protecting both business and the environment.

Minimizing freshwater intake by maximizing industrial water recycling and recovery

Freshwater is scarce. We help industries reduce their water footprint by reusing what’s already in the system, cutting costs and building resilience.

Addressing contamination in industrial water from chemicals, heavy metals, and micropollutants

PFAS, chemicals, heavy metals, and micropollutants can’t be ignored. We remove dangerous substances and recover resources where possible, safeguarding health and ecosystems.

Ensuring consistent water quality in mission-critical industrial water processes

Reliable processes need reliable water. We reduce risks, reuse safe flows, and recover consistency across mission-critical operations.

What is industrial water and wastewater?

Industrial water

Industrial water refers to water used in industrial processes such as manufacturing, energy generation, chemical processing, and food production. Unlike domestic water, which is intended for human consumption and sanitation, industrial water is specifically used for production activities, equipment cooling, cleaning, processing raw materials, and other operational tasks in an industrial setting.

How can NSI meet your needs?

We’re committed to giving industrial water the value it deserves. Our approach is based on sustainability, innovation, and circular water use:

  • Design and build complete industrial water treatment and wastewater recovery systems.
  • Integrate reuse and recycling strategies tailored to your footprint.
  • Recover resources such as heat, energy, and raw materials from treatment processes.
  • Achieve zero-liquid discharge (ZLD) and minimize environmental impact of water usage.
  • Monitor and optimize operations using digital twins and smart industrial water management tools.

Tailored to your industry

Backed by decades of expertise, we deliver turnkey industrial water solutions customized for your sector and needs. We tailor solutions to each industry's challenges, because every drop of water deserves the right treatment. Our modular, scalable systems support:

Manufacturing & processing

  • Treatment of high-load industrial water with organic and chemical contaminants.
  • Water reuse in CIP systems, cooling, and general processes.
  • Sludge and nutrient recovery from industrial water streams.

Energy production

  • Advanced treatment of industrial water used in biofuels and hydrogen generation.
  • Optimizing boiler feed and cooling water quality.
  • Enabling closed-loop systems for industrial water reuse.

Waste management & Waste-to-Energy

  • Leachate and scrubber industrial water treatment.
  • Biogas and nutrient recovery from industrial water digestate.
  • Odor and corrosion control in industrial water circuits.

Upstream & downstream (Oil & Gas)

  • Produced water treatment and reuse.
  • Advanced separation and polishing of hydrocarbon-laden industrial water.
  • ZLD strategies for downstream industrial water processes.

Chemical & petrochemical

  • Treatment of cooling tower blowdown and process industrial water.
  • Heavy metal and pollutant removal from hazardous industrial water effluents.
  • Resource recovery and cost-saving reuse of industrial water streams.

Our solutions

  • 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.

  • 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 (...)

  • 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

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

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 (...)

Contact our experts

Contact our experts