Industrial wastewater treatment | Alfa Laval

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 this water can be treated so it can be saved and reused. Then, investing in methods which 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. Alfa Laval offers a wide range of solutions for wast

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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

Effectively dealing with industrial wastewater is often a legal obligation and necessary in order to retain your license to operate. However, the 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.

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Product overview

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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.

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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.

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ORCA

The Alfa Laval ORCA Offshore freshwater generator is based on proven vacuum vapor compression technology generating high-quality and reliable water supply for offshore conditions. The system only requires electricity to drive the distillation process and is more robust than other technologies on the market. The ORCA is built for uptime with a compact and robust design, ensuring a long working life.

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Interested in greater understanding of our superior evaporation technology?

Alfa Laval offers a plate-based evaporation test unit for evaporation/crystallization, suitable for demanding industries and applications. 

Application overview

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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.

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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.

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Power

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.

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Chemicals 

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.

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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.

 

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Other applications 

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