We understand the growing importance of reliable and sustainable industrial water management. Whether it's for manufacturing, chemical processing, or energy production, managing industrial water efficiently is essential for maintaining productivity, reducing environmental impact, and ensuring regulatory compliance.
By treating industrial water on-site, companies can minimize costs, improve process stability, and recover valuable resources while meeting environmental goals.
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.
Industrial wastewater
Industrial wastewater is produced across many sectors, each with its own specific pollutants and treatment needs. In the mining industry, it often contains heavy metals and chemical residues. Food and beverage producers generate wastewater rich in organic matter and nutrients, while chemical and pharmaceutical plants discharge complex compounds and solvents.
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

- Industrial
- Municipal
Coagulation & Flocculation
- Industrial water
- Process water
- Drinking water
- Wastewater

- Municipal
- Industrial
Dissolved Air Flotation solutions (DAF)
- Drinking water
- Wastewater
- Industrial water
- PFAS

- Industrial
- Municipal
Aerobic treatment
- Industrial water
- Wastewater

- Industrial
- Municipal
Anaerobic wastewater treatment
- Industrial water
- Resource Recovery

- Industrial
- Municipal
Membrane filtration
- Process water
- Industrial water
- PFAS
- Micropollutants
- Wastewater
- Drinking water
- Source water
- Rainwater

- Industrial
- Municipal
Sludge treatment
- Sludge

- Industrial
- Municipal
Biogas treatment
- Wastewater
- Resource Recovery
- Industrial water
- Sludge

- Municipal
- Industrial
Digestate treatment
- Industrial water
- Resource Recovery
- Sludge
- Wastewater