About Lenntech

Water treatment & membrane separation since 1993

Lenntech designs and manufactures water treatment and liquid separation systems for industrial applications.

Established in 1993, Lenntech is based in the Netherlands, near the Technical University of Delft. Our team brings together sales, environmental, chemical, mechanical and electrical engineering expertise to deliver turnkey and customized water purification systems.

Integrated into your process

Each water and liquid stream is unique. We combine a broad range of technologies with water treatment know-how to develop solutions around your water quality requirements and cost efficiency.

Our approach brings together design, engineering and sustainable manufacturing for water and wastewater reuse. We work with industries, academic institutions and research centres, and prioritize research and development to keep improving our solutions and products.

Diagram connecting industrial processes, water treatment, wastewater treatment and water resources through reuse and recovery — Value integration in the customer’s process

Lenntech team meeting, equipment assembly and engineering drawings

Lenntech turnkey water treatment solutions — Lenntech turnkey solutions

Systems, spare parts and support

Alongside our water purification and membrane separation systems, our dedicated after-sales department supplies spare parts for water treatment equipment, including filters, membranes, resins and pumps from major manufacturers.