Industrial wastewater treatment

Moving towards more circular business models is essential for being able to operate in a more sustainable way. As industrial processes use significant amounts of water, becoming more circular means understanding how industrial wastewater systems can help treat water so it can be saved and reused. Then, investing in industrial wastewater systems allow you to reuse, recycle or sell waste by-products from this water treatment can lead to cost savings and/or an additional revenue stream.

industry 640x360

Alfa Laval helps turn waste into value

  • Recover valuable resources from main process
  • Minimize water consumption by reusing treated wastewater
  • Minimize waste for disposal
  • Cost-efficient production
  • Reduce environmental footprint

Having an effective industrial wastewater solution is often a legal obligation and necessary in order to retain your license to operate. However, the industrial water treatment process itself can improve profit margins if it is done in the right way. By applying a thorough separation process and by reusing the water, not only will you reduce operational costs but it’s also possible to recover valuable materials from  the waste that otherwise would have been lost. Alfa Laval has the range, knowledge and expertise to be able to provide the right solution for your specific requirements.

Superior separation, freshwater and evaporation solutions covering the whole water and waste treatment process

Alfa Laval offers a range of products dedicated to handling industrial water and waste, from fresh water generators, to high-performance decanter centrifuges to the best-in-class Zero Liquid Discharge solution.

iwwt power 640x360

Process overview

Alfa Laval Raw Wastewater treatment 3

Product overview


Decanter centrifuges 

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

Read more 


Zero liquid discharge systems 

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.

Read more

Curious to learn how our decanter centrifuges work?

Alfa Laval decanter centrifuges help you with solid-liquid separation within one single continuous process. Watch the video to learn the working principles of decanter centrifuges. 

Application overview


Pulp and paper

The production of pulp and paper requires large quantities of water for virtually all the processes involved. Even with some recycling, pulp processing and paper making still require large quantities of fresh water. Alfa Laval provides both the process equipment and the know-how to help you minimize water consumption and optimize the economics of your wastewater treatment.


Steel and COG

Decanter centrifuges are widely used for dealing with dust arising from blast furnaces, basic oxygen furnaces, sintering plants, and other molten metal operations. Removing water from the wet scrubbing slurries and recovering and recycling the resultant solids make it possible for you to generate important additional revenue flows. Alfa Laval decanter centrifuges are also used extensively for dewatering sludge that result from wastewater treatment operations prior to disposal so that the water can be reused for other processes within the plant.



The combustion of coal in power generation facilities produces SO2 that is emitted to the atmosphere. Flue gas desulfurization (FGD)is widely used by power plants to remove SO2 from flue gas. Wet scrubbing by limestone, the most common technology used in FGD system, generates gypsum as a by-product as well as wastewater which both need to be treated prior to reuse or disposal. Alfa Laval decanter centrifuges are a proven solution for gypsum and wastewater sludge dewatering.

Chemical plant 640x360.jpg


The production of chemicals generates a significant amount of wastewater that is mainly coming from aqueous discharges of manufacturing processes. Discharges from equipment and production workshop washing and cleaning and collection of rainwater from contaminated areas are also generated. This wastewater contains pollutants that must be treated before it can be discharged to the environment or recycled and reused in the process. Alfa Laval decanter centrifuges provide cost-effective solutions in the dewatering of sludge generated from wastewater treatment operations.

Oil and Gas drilling 640x360.jpg

Oil and Gas

The oil and gas industry generates a significant amount of wastewater from upstream and downstream activities which must be managed. Produced water is the largest waste stream generated. Produced water and other waste streams are contaminated with organic and inorganic pollutants that need to be treated before it can be reused, recycled or released into the environment. Alfa Laval decanter centrifuges provide cost-effective solution in the recovery of oil from waste stream such as slop oil and dewatering of sludges generated from wastewater treatment operations.


Do you have any questions? 

If you want to find out more about our solutions for water and waste treatment, fill in the form and one of our experts will be in touch soon.water treatment_640X360.jpg

This information is stored and processed in accordance to our privacy policy.