10 Leading DAF System Manufacturers & Suppliers Worldwide in 2026

 

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Author: Mike Wastewater Treatment Engineer Water Treatment Expert Time: September 9, 2026 Introduction: I'm Mike. I've been deeply engaged in the field of wastewater treatment and environmental protection equipment for a long time, with extensive front-line experience. I focus on engineering implementation and operation optimization, sharing practical and applicable industry insights.

 

Keywords:

DAF system manufacturers;DAF system suppliers;dissolved air flotation manufacturers;DAF manufacturers worldwide;DAF;system manufacturer China;industrial wastewater treatment DAF;high efficiency DAF system;customized DAF system

 

How can industrial facilities remove suspended solids, fats, oils, grease and other difficult contaminants from wastewater more efficiently? Which DAF system manufacturers are developing reliable dissolved air flotation technologies for food processing, slaughterhouse, pulp and paper, textile, chemical and municipal wastewater applications? And what should buyers consider before choosing a DAF system supplier in 2026?

 

As discharge regulations become stricter and industries place greater emphasis on water reuse, energy efficiency and compact wastewater treatment systems, Dissolved Air Flotation (DAF) continues to play an important role in industrial and municipal wastewater treatment.

 

Modern DAF systems use fine air bubbles to attach to suspended solids, oil, grease and flocculated particles, causing these contaminants to rise to the surface for mechanical removal. Depending on the application, DAF can be used as pretreatment before biological processes, for industrial oil-water separation, for algae removal or as part of an advanced wastewater treatment process.

 

The global market includes specialist DAF technology companies such as KWI, major international water technology groups such as Veolia and Xylem, and flexible equipment manufacturers such as Henan Eco Environmental Protection Equipment Co., Ltd.

This guide introduces 10 leading DAF system manufacturers and suppliers worldwide in 2026, with an overview of their technologies, products and areas of expertise.

 

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Company Profile:

Henan Eco Environmental Protection Equipment Co., Ltd. is a China-based DAF system manufacturer and wastewater treatment equipment supplier specializing in customized high-efficiency Dissolved Air Flotation systems for industrial and municipal wastewater treatment.

 

Unlike suppliers that primarily provide one conventional DAF configuration, Henan Eco offers several flotation technologies for different wastewater characteristics, treatment capacities, hydraulic conditions and available installation spaces.

 

Its DAF portfolio includesLK- Combined DAF, LK- High-Efficiency Shallow Air Flotation, LK- Multiphase Mixing DAF and LK- Vertical Flow DAF systems, together with LK- dissolved-air generation equipment.

 

One of Henan Eco's major advantages is the wide treatment capacity available across its flotation portfolio. Its equipment ranges from compact DAF systems of approximately 0.5 m³/h to large shallow flotation systems approaching 1,000 m³/h, allowing the manufacturer to serve small factories, industrial wastewater plants and larger municipal or infrastructure projects.

 

The LK- Combined DAF System features a stated dissolved-air efficiency of more than 98% and an average microbubble size of approximately 10 μm. Fine bubbles increase the available contact area between bubbles and flocculated contaminants, supporting efficient flotation and solid-liquid separation.

 

For larger flows, the LK- High-Efficiency Shallow Air Flotation System is designed with an effective water depth of approximately 750–950 mm, hydraulic retention time of 5–10 minutes, approximately 30% recirculation ratio, dissolved-air pressure of about 0.4 MPa or higher, and hydraulic surface loading of 6–8 m³/m²·h.

 

Henan Eco can also integrate chemical dosing, coagulation, flocculation, screening, sludge pumping, sludge conveying and sludge dewatering equipment into a more complete wastewater treatment solution. This makes the company particularly relevant to EPC contractors, distributors and industrial users looking for more than a standalone DAF tank.

 

Headquarters: China

 

Main Products:

• LK- Combined Dissolved Air Flotation System
• LK- High-Efficiency Shallow Air Flotation System
• LK- Multiphase Mixing DAF System
• LK- Vertical Flow DAF System
• LK- Dissolved Air System

 

Typical Applications:

Food processing, slaughterhouses, dairy processing, pulp and paper, textile and dyeing, chemical processing, petrochemical wastewater, industrial oil-water separation, municipal wastewater, algae removal and wastewater treatment plant upgrading.                                                  

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Company Profile:

KWI International is one of the best-known specialist companies in the global Dissolved Air Flotation industry.

 

The company focuses strongly on solid-liquid separation and provides a broad portfolio of DAF technologies for industrial wastewater, municipal wastewater, potable water, process water and desalination pretreatment.

 

KWI currently states that it has more than 4,700 installations in 77 countries, giving the company extensive international experience with flotation applications.

 

Its DAF range includes more than ten flotation configurations. Technologies include Megacell, Supercell, Minicell, Unicell and Ecocell, along with systems for large flows and combined flotation-filtration processes. KWI also offers several air pressurization systems, including ADR technology capable of generating fine bubbles in the approximately 30–50 μm range.

 

KWI is particularly strong in specialized applications where customers require experienced flotation engineering, stainless-steel construction and access to several alternative DAF designs.

 

Headquarters: Ferlach, Austria KWI International

 

Main Products:

 

• Megacell DAF
• Supercell DAF
• Minicell DAF
• Unicell DAF
• Ecocell DAF
• Flotofilter
• ADR Air Dissolving Reactor
• Large-flow DAF systems                                            

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Company Profile:

Veolia Water Technologies is a major global water and wastewater technology provider serving industrial and municipal customers around the world.

 

For dissolved air flotation, Veolia offers its Idraflot™ technology.

 

Idraflot is designed to remove suspended solids, oils, grease and insoluble COD through fine-bubble flotation. Veolia currently specifies treatment capacities ranging from approximately 5 to 480 m³/h.

 

The technology uses patented mixing and hydraulic distribution concepts intended to improve contact between saturated water and contaminants while maintaining uniform flow across the flotation surface.

 

Veolia also highlights the compact nature of its system, stating that the Idraflot footprint can be approximately 35–40% smaller than traditional flotation units in suitable applications.

 

Veolia is especially relevant to international industrial customers requiring DAF as part of a larger engineered water or wastewater treatment project.

 

Headquarters: France / Global

 

Main Products:

• Idraflot SPF DAF
• Idraflot IFS DAF
• Industrial Wastewater Treatment Systems
• Biological Treatment Systems
• Water Reuse Systems
• Sludge Treatment Technologies                                                    

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Company Profile:

Xylem is one of the world's major water technology companies and supplies a broad range of water infrastructure and wastewater treatment equipment.

 

Its flotation portfolio includes Dissolved Air Flotation, Dissolved Nitrogen Flotation and other Dissolved Gas Flotation systems.

 

Xylem's DAF systems are designed for removal of Total Suspended Solids (TSS), Biochemical Oxygen Demand (BOD), oils and greases from wastewater streams.

 

The process uses a pressurized recycle stream to generate micron-sized gas bubbles. These bubbles attach to contaminants, causing them to float to the surface and form a layer that is removed using a surface skimmer.

 

Xylem also provides related equipment for DAF pretreatment, including whitewater pumps, process mixers, flocculation systems, pH adjustment equipment, equalization, screening and tank mixing. Xylem

 

This makes Xylem suitable for customers requiring integrated water handling and treatment technologies from an established international supplier.

 

Headquarters: United States / Global

 

Main Products:

 

• Packaged DAF Systems
• Dissolved Nitrogen Flotation Systems
• HELLBENDER® DAF Pumps
• HELLBENDER® Process Mixers
• Flocculation Systems
• pH Control and Equalization Equipment
• Wastewater Pumps and Monitoring Systems 

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Company Profile:

Nijhuis Saur Industries is an international water technology company providing engineered treatment solutions for industrial and municipal applications.DAF is an important part of the company's separation technology portfolio.Nijhuis currently offers several DAF configurations designed for different flow rates, solids loads, wastewater characteristics and footprint requirements. Its portfolio includes high-rate concrete i-DAF, FlooDAF® and IPF-NPF flotation technologies. Nijhuis Saur Industries.These systems are used for industrial water, wastewater, drinking water, sludge treatment and resource recovery applications.Nijhuis emphasizes high removal performance, operational flexibility and reliable operation under varying wastewater conditions.The company may therefore be considered for complex industrial projects where flotation needs to be integrated with biological treatment, resource recovery or water reuse.

 

Headquarters: Netherlands / Global

 

Main Products:

 

• High-Rate Concrete i-DAF
• FlooDAF®
• IPF-NPF DAF
• Industrial Wastewater Treatment
• Aerobic and Anaerobic Treatment Systems
• Membrane Filtration
• Water Reuse and Resource Recovery Systems

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Company Profile:

 

WesTech Engineering supplies water and wastewater treatment equipment for municipal and industrial markets.Its flotation product range includes both Dissolved Air Flotation (DAF) and Dissolved Nitrogen Flotation (DNF) clarifiers and thickeners.In the WesTech flotation process, gas is dissolved in liquid under pressure. When pressure is released, microscopic bubbles form and attach to incoming solids. The solids then become buoyant and rise to the surface for mechanical removal.Typical applications include refineries, food processing, chemical processing, power plants, pulp and paper, algae removal, oil and grease separation and sludge thickening.WesTech also supplies clarification, filtration, flocculation, sludge treatment and other wastewater equipment, making it suitable for projects requiring several different treatment technologies.

 

Headquarters: United States

 

Main Products:

 

• DAF Clarifiers and Thickeners
• DNF Systems
• Clarifiers
• Flocculators
• Filter Presses
• Sludge Treatment Equipment
• Industrial Water Treatment Systems

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Company Profile:

Toro Equipment is a Spanish manufacturer specializing in industrial and municipal wastewater treatment equipment.The company has been involved in wastewater equipment manufacturing since 1990 and supplies flotation, screening, clarification and sludge-dewatering equipment. Toro Equipment.Its DAF units use FADAR® flotation technology, where fine air bubbles attach to flocculated particles and raise them to the surface for automatic removal.Toro states that its DAF systems can achieve up to 90% reduction in Total Suspended Solids under suitable treatment conditions and can produce floated sludge with dryness reaching approximately 6%.The company uses corrosion-resistant GRP and stainless-steel components in several DAF models and provides solutions for both high-flow and high-solids applications.

 

Headquarters: Valladolid, Spain

 

Main Products:

• DAF-FRC Systems
• DAF-FRL Systems
• Rotary Drum Screens
• Filter Presses
• Lamella Clarifiers
• Chemical Dosing Equipment
• Modular Wastewater Treatment Plants

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Company Profile:

DAF Corporation is a United States company specializing primarily in Dissolved Air Flotation clarifier systems.Compared with broader water technology groups, DAF Corporation has a more concentrated product focus on flotation and microbubble generation.The company supplies new installations and retrofit solutions and lists DAF systems covering flows from approximately 48 GPM to 11,000 GPM.Its Micro Bubbler Generator is designed to generate approximately 20–40 micron bubbles, and the company provides different clarifier designs for industrial wastewater applications. DAF Corporation may be relevant for customers specifically searching for a specialist DAF clarifier supplier rather than a complete general wastewater equipment manufacturer.

 

Headquarters: Wisconsin, United States

 

Main Products:

 

• FC Maximizer DAF Clarifier

• RC Unimax DAF

• Micro Bubbler Generator

• DAF Retrofit Systems

• Industrial Clarification Equipment

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Company Profile:

World Water Works is a U.S.-based wastewater treatment technology company serving industrial and municipal customers.The company has worked with DAF technologies since the late 1990s and now combines flotation with biological treatment and other integrated wastewater processes.Its WWW™ DAF uses pressurized whitewater to generate microbubbles that attach to suspended solids, fats, oils, grease and non-soluble organics.The floated contaminants rise to the surface and are removed by a chain-and-flight skimming mechanism. World Water Works also offers specialized flotation equipment for primary metals and integrates DAF with equalization, coagulation, flocculation, MBBR, sludge handling and disinfection processes.This makes the company particularly relevant to industrial plants looking for DAF within a complete wastewater process rather than as an isolated unit.

 

Headquarters: Oklahoma City, United States

 

Main Products:

 

• WWW™ DAF
• PMP DAF™
• Industrial Pretreatment Systems
• MBBR Systems
• Biological Nutrient Treatment
• Chemical Coagulation and Flocculation
• Sludge Dewatering Solutions

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Company Profile:

Hydroflux supplies engineered water and wastewater treatment systems in Australia, New Zealand and other markets.Its HyDAF technology is designed for municipal and industrial dissolved air flotation applications.Hydroflux states that more than 200 HyDAF systems are operating globally, with standalone units capable of flows exceeding approximately 300 kL/h.The system incorporates a specially engineered inlet mixing arrangement to optimize interaction between dissolved air and wastewater.Hydroflux offers several tank configurations, including HD, HD-V and HD-S, for different settled-solids conditions and treatment requirements. Hydroflux EpcoIts applications include drinking-water treatment, industrial wastewater pretreatment, algae removal, primary wastewater treatment, phosphorus removal and sludge thickening.

 

Headquarters / Main Market: Australia / Australasia

 

Main Products:

 

• HyDAF HD Series

• HyDAF HD-V Series

• HyDAF HD-S Series

• Industrial Wastewater Treatment Systems

• Municipal Treatment Systems

• Sludge Management Equipment

• Screening and Chemical Conditioning Systems

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Choosing the correct DAF system manufacturer is one of the most important steps in developing a reliable flotation process.A suitable manufacturer should not only provide a tank and dissolved-air pump. It should understand the wastewater characteristics, contaminant loading, required treatment target and downstream process.For example, a slaughterhouse wastewater plant with high fats, oils and suspended solids will require a different DAF configuration from a municipal algae-removal project or a paper mill fiber-recovery system.

 

Important factors buyers should evaluate include:

 

• Experience with similar wastewater applications
• DAF treatment capacity and peak hydraulic flow
• Bubble-generation technology
• Hydraulic surface loading
• Hydraulic retention time
• Recirculation ratio
• Coagulation and flocculation design
• DAF tank material
• Sludge scraping and discharge system

• Automation and PLC control

• Customization capability

• Technical documentation

• Installation and commissioning support

• Spare parts and after-sales service

 

The best DAF supplier is therefore not necessarily the largest manufacturer. It is the supplier capable of matching the flotation process to the actual wastewater and project requirements.

 

 

DAF manufacturers use different flotation configurations depending on capacity, wastewater composition, available footprint and project requirements.

 

DAF System Type	Main Characteristics	Typical Applications
Conventional DAF	Pressurized recycle water and flotation tank	General industrial wastewater
Shallow DAF	Short retention time and shallow flotation depth	High-flow treatment
Vertical Flow DAF	Compact cylindrical design	Space-limited installations
Multiphase Mixing DAF	Gas-liquid mixing pump can simplify air-dissolving system	Industrial wastewater
High-Rate DAF	Higher hydraulic surface loading	Large treatment plants
DAF + Filtration	Flotation followed by or combined with filtration	Drinking water and tertiary treatment
DAF Sludge Thickening	Concentrates biological sludge	Municipal WWTPs
Oil-Water DAF	Focused on FOG and hydrocarbon removal	Petrochemical and industrial wastewater

 

Henan Eco, for example, provides several of these configurations through its LK-GF, LK-GQF, LK-GDXF and LK-GLSF product ranges.

 

 

Industrial users often require more than a standard packaged flotation unit.

Wastewater composition can change with production schedules, cleaning cycles, raw materials and seasonal conditions, so engineering flexibility is important.

 

Comparison Factor	What Buyers Should Consider
Engineering Capability	Can the manufacturer size the DAF according to actual water analysis?
DAF Technology	Does the supplier offer one or several flotation configurations?
Bubble Generation	What dissolved-air system and bubble characteristics are used?
Capacity Range	Can the supplier handle both average and peak flow?
Chemical Treatment	Can coagulation and flocculation be integrated?
Material Options	Carbon steel, SUS304 or SUS316?
Automation	PLC, HMI, VFD and remote communication available?
Complete Equipment Supply	Can screening, dosing and sludge treatment also be supplied?
Technical Support	Does the supplier provide drawings, manuals and commissioning support?

 

For Henan Eco, one useful technical distinction is the availability of several DAF technologies rather than a single standard configuration.

 

Its LK-GF system focuses on fine microbubble flotation, while LK-GQF provides high-rate shallow flotation, LK-GDXF uses multiphase gas-liquid mixing, and LK-GLSF provides a compact vertical design.

 

 

China has become an important manufacturing base for industrial wastewater treatment equipment.

 

For international EPC contractors, distributors and industrial customers, working with a Chinese DAF system manufacturer can provide several practical advantages.

 

Chinese suppliers often have access to complete wastewater equipment supply chains, allowing screens, pumps, dosing equipment, tanks, mixers, sludge conveyors and dewatering equipment to be combined within one project.

 

Customization can also be an important advantage.

 

For example, a DAF system may need to be modified according to:

 

• Treatment capacity
• Tank dimensions
• Installation space
• Wastewater composition

• Carbon steel or stainless-steel requirements

• Local voltage and frequency

• PLC specifications

• Pump and electrical component brands

• Shipping restrictions

 

Henan Eco can provide carbon steel with anti-corrosion treatment, SUS304 and SUS316 configurations and can also customize electrical and automation requirements for international projects.

 

For buyers comparing Chinese DAF manufacturers with European or American suppliers, price should not be the only consideration.

 

Technical design, wastewater experience, material quality, documentation, international communication and after-sales support should also be evaluated.

 

 

Before contacting a DAF system manufacturer, prepare as much wastewater information as possible.

 

The most useful information includes:

Average Flow: m³/h
Peak Flow: m³/h
Wastewater Source:
TSS: mg/L
COD: mg/L
BOD: mg/L
Oil & Grease: mg/L
pH:
Temperature: °C
Operating Hours: h/day
Required Effluent Quality:
Available Installation Space:
Preferred Material:
Voltage / Frequency:
Automation Requirement:

For complex industrial wastewater, water analysis and jar testing are recommended before final DAF sizing and chemical selection.

 

 

 

 

As industries around the world face stricter wastewater discharge standards and increasing pressure to reduce water consumption, Dissolved Air Flotation systems will continue to be an important technology for industrial and municipal water treatment.

 

Companies such as KWI, Veolia, Xylem, Nijhuis Saur Industries, WesTech, Toro Equipment, DAF Corporation, World Water Works and Hydroflux represent different approaches to DAF technology, ranging from specialist high-rate flotation equipment to integrated global wastewater treatment platforms. KWI International

 

For customers looking for a customized DAF system manufacturer in China, Henan Eco Environmental Protection Equipment Co., Ltd. offers another option.

 

Henan Eco provides multiple flotation technologies rather than relying on one standard DAF design. Its current portfolio includes LK-GF Combined DAF, LK-GQF High-Efficiency Shallow DAF, LK-GDXF Multiphase Mixing DAF and LK-GLSF Vertical Flow DAF, covering applications from compact industrial wastewater treatment to high-flow systems approaching 1,000 m³/h.

 

The LK-GF system specifies more than 98% dissolved-air efficiency and approximately 10 μm average microbubbles, while the LK-GQF shallow flotation system is designed around 5–10 minutes hydraulic retention time and 6–8 m³/m²·h surface loading.

 

Combined with screening, chemical dosing, coagulation, flocculation, sludge conveying and sludge dewatering equipment, Henan Eco can provide both standalone DAF equipment and integrated wastewater treatment packages.