Mining & Metals

Water solutions & brine management for mining & metals

We provide comprehensive solutions for mining waters. We can help you to remove problem contaminants, treat mine waters, achieve minimal liquid discharge (MLD) or zero liquid discharge (ZLD), or recover valuable metals. 

There is no single solution for mining waters. We will study your problem and present you with options. 

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We Understand Mining Waters

Mining locations are often remote. Mining waters are diverse, the volumes involved can be large, and they vary seasonally. Water issues that we can help with include:

  • Selectively removing ‘problem’ contaminants from discharge
  • Tailings pond capacity limits
  • Effluent flows
  • Meeting ion discharge limits (e.g. nitrate, sulfate, chloride)
  • Recovering metal content (including heavy metal)
  • Freshwater shortage/limits
  • Groundwater treatment
  • Mine dewatering
  • Acid mine drainage
  • Challenge us!
Mining Wastewater Treatment
Upstream Pre-Treatment for Saltworks FlexEDR Electrodialysis Reversal Pilot Plant.

Sulfate Experts

If you need to meet a sulfate discharge limit, we very likely have a solution for you. Every sulfate situation is different, so your sulfate challenge first deserves a dedicated review from our experts, to see how sulfates may be most economically treated using industrialized water treatment technologies. 


Once a review is complete, most of our clients’ sulfate removal needs can be classified into high- and low- total dissolved solids (TDS) waters, described below. We have solutions for both, adjusted to your unique wastewater, including our new SulfateSelect solution family for low TDS wastewaters. 

Water Management Options

The lowest cost treatment is to not treat at all. Our ScaleSense sensors measure problematic ions in real-time, helping you determine if you can avoid treatment. If you must treat, our IonSelect solution will selectively target and remove problem ions of concern, such as arsenic, cobalt, iron, and sulfates. IonSelect avoids over- or under-treating and can be more cost-effective than treating the entire flow.


If you need more comprehensive treatment, our desalination and brine management solutions can help. XtremeRO is a robust ultra high recovery reverse osmosis system built for remote industries. BrineRefine partners with reverse osmosis to remove scaling ions, enabling maximum recovery and smooth operations. SaltMaker is a platform of evaporator-crystallizer solutions with four possible configurations depending on your site needs and energy sources.


Our treatment professionals will help you assess the cost and performance of relevant options. Contact us. Challenge us.

Mine Wastewater Treatment

Mining & Metals Related Products

BrineRefine Chemical Softening System

Smart, compact, modular chemical system that reduces costs with precise dosing and built-in solids management. Improves recovery & minimizes fouling risk with intelligent controls that communicate with downstream assets, like RO or evaporators. More ...


An automated, real-time sensor for saline water that measures calcium (Ca2+), barium (Ba2+), sulfate (SO42-) ions and silica (SiO2). ScaleSense is robust and corrosion-resistant and functions accurately and precisely, even at extremely high-TDS. More ...

SaltMaker MultiEffect Evaporator Crystallizer

Modern, modular, and intelligently automated evaporator-crystallizer that concentrates brine or produces low volume solids for zero liquid discharge. More ...

XtremeRO Brine Concentrator

Next-generation water-maker and brine-concentrator based on reverse osmosis that achieves extreme freshwater recoveries, enabling cost-effective brine management and treatment of challenging organic-laden waters including oil & gas produced waters. More ...

Mining & Metals Related Resources

Saltworks Lithium Refining

Saltworks Scores a Lithium Hat-Trick

Saltworks’ water mining expertise and advanced desalination technologies are proving to be a perfect fit for lithium clients. We are delighted to announce a hat-trick of lithium wins.

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