Contact us

Your challenges

Meeting today’s standards while preparing for tomorrow means tackling persistent water-related issues, including:

Complying with strict environmental discharge limits

To avoid permit violations, complying with local regulations ensures continuous operations.

Removing persistent micropollutants, heavy metals and PFAS

Your mining wastewater contains heavy metals, and trace chemicals from several streams.

Reducing water consumption and maintaining water quality

To ensure safe, and reliable water reuse for operations, overall reduction of water will help meet your sustainability goals, while managing large volumes of process water and wastewater.

Enhancing mining recovery

There's still value left in wastewater such as precious metals which can be recovered.

How can NSI meet your needs?

We’re committed to giving water the value it deserves in mining and mineral processing. Our solutions are built around your operations and environmental goals, with an emphasis on the 4R strategy: Reduce, Remove, Reuse, and Recover.

  • Design and build tailored water and wastewater treatment plants for greenfield or existing sites
  • Reduce operational water demand through reuse and process optimization
  • Remove harmful contaminants and improve water quality for discharge or reuse
  • Recover valuable materials and energy from wastewater and sludge
  • Minimize your environmental footprint while ensuring regulatory compliance

Discover our solutions

Backed by decades of water treatment experience and in-house expertise, our full-scale, modular, and mobile solutions are designed to meet your water needs from mine to refinery. Depending on your requirements and contract type (e.g., DBFMO), we integrate best-fit, proven technologies — delivered and maintained by our global teams.

Whether you’re looking to:

  • Treat and reuse process water onsite
  • Secure sustainable tailings and effluent management
  • Achieve net zero water goals
  • Reduce environmental and reputational risks

We’re here to help — because #missionwater drives every solution we deliver.

See all solutions
  • 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

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 (...)
Talk with our expert
Contact
  • 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.
  • 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
  • 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 (...)
  • 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 (...)

Water sources and wastewater composition in mining operations

In mining operations, water comes from several sources.

The most common is groundwater, which is pumped from below the surface to support mineral extraction and processing. Increasingly, mining companies are exploring alternative water sources, such as treated wastewater or desalinated seawater, to reduce pressure on freshwater resources and improve sustainability.

Freshwater sources like rivers, lakes, and reservoirs are also used, particularly in regions where surface water is readily available. However, reliance on these sources can lead to conflicts with local communities and ecosystems, especially in water-scarce areas.

Wastewater from mining operations contains a complex mix of pollutants.

It often includes suspended solids like sand, silt, and fine mineral particles from crushing and grinding processes. Heavy metals such as arsenic, mercury, and lead can be present, depending on the mined material. Chemical residues from ore processing, including cyanide, acids, and flotation agents, are also common. In addition, salts, nutrients, PFAS and hydrocarbons may be found, requiring advanced treatment before reuse or discharge.

Contact our experts