Water treatment

Our water treatment solutions

Drinking water

Supplying safe, high-purity drinking water requires precision at every step. Our lime-based and mineral solutions help you achieve effective softening, mineralization, pH adjustment and corrosion control, ensuring resilient networks and compliant, high-quality water.
Discover our drinking water solutions

Desalination/Reuse

As water demand increases and resources tighten, every drop counts. Our solutions enhance remineralization, pH balance and membrane protection, enabling efficient desalination and reuse that you can trust.
Discover our desalination and reuse solutions

Municipal wastewater

Municipal wastewater treatment is essential for protecting communities and the environment. Our limebased solutions help you keep systems stable by improving nutrient reduction, balancing acidity, limiting odors, and safeguarding infrastructure - all while ensuring cleaner, safer discharge.
Discover our municipal wastewater solutions

Industrial water

Stable water quality is critical to maintaining efficient industrial processes. Our solutions help you manage softening, silica reduction, pH balance and targeted ion removal - protecting equipment, improving reliability, and ensuring compliant discharge.
Discover our industrial water solutions

Sludge treatment

Efficient sludge treatment is key to both compliance and cost control. With our lime-based solutions, you gain stronger dewatering, reliable stabilization and the ability to recover phosphorus - reducing volumes, simplifying handling and lowering disposal costs while maintaining compliance.
Discover our sludge treatment solutions

Additional environmental applications of lime

Environmental performance extends beyond water treatment. Lime also plays a vital role in restoring contaminated soils, neutralizing acid mine drainage, and optimizing water circuits in the pulp and paper industry - helping protect ecosystems and support cleaner industrial operations.
Discover our additional environment applications

Water quality directly impacts your regulatory compliance, operational continuity and asset protection.  Ensuring its purity is essential for public health, industrial performance, and environmental protection. Across the entire water cycle - drinking water production, municipal and industrial wastewater treatment, sludge treatment, and environmental applications - Lhoist provides lime‑based and mineral solutions that improve water quality, optimize treatment processes, and support regulatory compliance. Our expertise helps you meet increasingly demanding standards while enhancing operational safety and efficiency.