Water and wastewater

Water is one of the most precious resources on our planet, essential for sustaining life and supporting ecosystems. However, with increasing pollution and growing demand, the importance of effective water and wastewater treatment cannot be overstated. Explore water treatment equipment for the intricate processes involved in treating both potable water for consumption and wastewater for safe disposal or reuse. Alfa Laval water treatment systems reduce water consumption and waste, to help you contribute towards environmental stewardship, while wastewater treatment equipment helps you recover more from your process to be saved and reused.

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Comprehensive solutions for water and wastewater treatment facilities

Alfa Laval's expertise in industrial and municipal water treatment ensures efficient solutions tailored to your facility and treatment process. By choosing Alfa Laval, you gain access to state-of-the-art water and wastewater treatment equipment and expertise that not only meet regulatory standards but also exceed expectations in terms of performance and reliability.

With a focus on providing innovative and responsible water and wastewater treatment solutions, Alfa Laval can help you meet your sustainability goals. Alfa Laval equipment is designed to reduce water consumption and waste, helping you minimize your environmental footprint while maximizing resource recovery.

Moreover, a broad range of products caters to a diverse array of industrial and municipal applications, providing scalable solutions that grow with your needs. Whether you're looking to purify water for consumption, treat wastewater for safe disposal or recover resources for reuse, Alfa Laval has the expertise and technology to meet your objectives effectively.

Benefits of partnering with Alfa Laval


  • Cutting-edge technology: Alfa Laval offers advanced solutions tailored to your specific plant requirements, ensuring innovative and effective processes.
  • Sustainability: Alfa Laval's equipment is designed to minimize water consumption and waste, helping you meet environmental stewardship goals and demonstrating responsible operations.
  • Durability and reliability: Engineered for longevity, water and wastewater treatment equipment from Alfa Laval ensures minimal downtime and long-term cost savings, providing dependable performance.

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Sustainable water management and wastewater treatment

Industrial wastewater treatment

Most industrial processes generate waste streams that need to be treated. Alfa Laval offers a variety of solutions for on-site water and wastewater treatment plus recovery of water, heat and even products.

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Municipal wastewater treatment

Alfa Laval helps plants reduce the environmental footprint from water and waste streams, by maximizing reuse of water, by turning waste to value and by minimizing energy consumption and waste.

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Municipal water

Demand for fresh water is constantly on the increase. Alfa Laval water purification systems and equipment minimize environmental impact by reducing the amount of waste derived from water production.

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Key products

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Decanter centrifuge

Alfa Laval decanter centrifuges are designed to perform at optimal levels in even the most challenging applications. They offer outstanding efficiency and reliability while helping you achieve your sustainability goals. Our expansive portfolio covers a wide range of capacities, and they are easy to install, operate and maintain, which helps reduce operational costs.

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Belt press

Alfa Laval AS-H belt presses are ideal for efficient dewatering of sludge from municipal and industrial wastewater treatment, as well as residuals dewatering from fresh water production facilities. There are several models and multiple configurations that can be customized for your specific needs.

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Looking for an upgraded solution to fabricated stainless steel, aluminum or cast-iron slide gates, stop gates and stop logs? Alfa Laval AS-H Coplastix® consists of a complete line of composite material custom flow control devices for wastewater and storm water, as well as hydro, industrial and sea water.

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Zero Liquid Discharge system

An Alfa Laval decanter can be complemented with one of our proven plate evaporators to reach superior water recovery, suitable for reuse. Each system can be adapted to the specific separation duty and capacities. With our robust technologies, you maximize reuse of water and minimize energy consumption by turning waste to value.

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Spiral heat exchanger

Designed to minimize frequent fouling from dirty media and maximize limited floor space, Alfa Laval welded spiral heat exchangers are known for solving tough problems and providing optimal performance. With low installation and maintenance costs, spiral heat exchangers are the obvious choice for wastewater and sludge treatment processes.

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AS-H Sequencing Batch Reactor

The AS-H Sequencing Batch Reactor (SBR) is an advanced technology for core activated sludge processes in biological wastewater treatment. Alfa Laval sequential batch reactors are ideal for plants that require flexibility of influent flow and organic load, and where effluent requirements are stringent.

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Package treatment plant

Alfa Laval package treatment plants for biological wastewater with activated sludge can be configured for a variety of processes and designed for batch or continuous operation. Modular package plants provide a great way to achieve advanced wastewater treatment results in an economical manner.

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Belt thickener

Designed for high throughput rates and high product solids content, the Alfa Laval AS-H belt thickener is considered the industry standard for removal of liquid from a solid-liquid suspension/sludge. With a simple design, the sludge thickener has a small footprint and is suitable for all municipal or industrial flocculated sludges.

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AS-H Iso-Disc® filter

Alfa Laval's high-quality AS-H Iso-Disc cloth media filter offers second to none performance for tertiary filtration and final polishing in municipal and industrial wastewater treatment. Designed to be flexible and compact, the Iso-Disc wastewater filter is easy to install, operate, maintain and expand – ensuring maximum efficiency with minimal downtime.

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Transforming wastewater

At Alfa Laval, we know that cleaning the world’s wastewater is crucial for sustainable water management. By applying the most energy-efficient solutions, municipalities and plants can optimize their consumption, reduce emissions and recover resources for reuse. Explore how Alfa Laval is transforming wastewater for customers like you.

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Corporate water stewardship

Industrial production plants face many challenges today – availability of fresh water, increased production emissions, policies on water contamination and more. These challenges put added pressure on companies trying to adapt to comply with regulatory restrictions and uphold corporate water stewardship responsibilities. Alfa Laval empowers industrial plants to optimize their water footprint by focusing on water conservation, wastewater treatment, water reuse and the establishment of circular water systems. In this way, plants can move towards achieving water neutrality, leading to future water-positive operations.


Customer success stories



Extending performance with the Alfa Laval 360° Service PortfolioOur global service network has dedicated specialists, knowledgeable about your industry. We are here to support you with parts and expertise, wherever and whenever you need them.

The Alfa Laval 360° Service Portfolio covers all your needs throughout the life cycle of your equipment — from start-up, maintenance, support and improvements to monitoring services — for maximum uptime, availability and optimization.

By minimizing your total cost of ownership, we help you stay ahead of the competition.

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