CAF Cavitation Air Flotation for Ind. & Mun. Sewage 1

CAF Cavitation Air Flotation for Ind. & Mun. Sewage 2

CAF Cavitation Air Flotation for Ind. & Mun. Sewage 3

CAF Cavitation Air Flotation for Ind. & Mun. Sewage 4

CAF Cavitation Air Flotation for Ind. & Mun. Sewage 5

CAF Cavitation Air Flotation for Ind. & Mun. Sewage 6

CAF Cavitation Air Flotation for Ind. & Mun. Sewage 7

CAF Cavitation Air Flotation for Ind. & Mun. Sewage

CAF Cavitation Air Flotation (CAF) is an advanced dissolved-air flotation system that uses cavitation to produce ultra-fine microbubbles for faster, more effective separation of suspended solids, oils and organics from industrial and municipal sewage. Its selling points are higher removal efficiency and quicker sludge separation than conventional DAF, reduced chemical and energy use, and a compact footprint suited to space-limited sites. The unit is easy to operate and maintain, scalable for different flow rates, and helps lower operating costs while supporting compliance with discharge standards.

brand name:

QILEE

Shipping:

Support Sea freight

Payments:

L/C,D/A,D/P,T/T,Western Union,MoneyGram,OA

Lead Time:

1-1(sets):60(days),>1(sets):To be negotiated(days)

Place of Origin:

China

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Total power(kw)

2.57

Scum skimmer(kw)

0.37

Aerator(kw)

2.2

Tank depth(m)

1.3

Tank width(m)

1.2

Tank length(m)

4.0

Treatment flow(m3/h)

Processing Type

desalination

Power(W)

1 kW

Product name

cavitation air flotation

Voltage

220 V, 380 V

weight (kg)

100

productivity

500L/Hour

warranty

1 Year

place of origin

Shanghai, China

Compact Modular Reliable Clarification

A compact, low‑cost CAF cavitation air flotation system delivers micro‑bubble Dissolved Air Flotation performance to remove grease, jelly and suspended solids from industrial and municipal sewage while eliminating compressors, pressure vessels and circulating pumps. Built with a simple, compact tank style and durable stainless‑steel bulk air impeller, the maintenance‑free unit ships in standard export cartons and is available in modular capacities (1–500 m3/h) with 3–20 day delivery. Customers gain reliable, economical operation and space savings for oily wastewater in petrochemical, food/dairy, meatpacking and paper mills through easy skimming and scalable, energy‑efficient design.

High Efficiency Cavitation Flotation

The CAF Cavitation Air Flotation unit delivers Dissolved Air Flotation performance through a cavitation-based aerator, stainless steel bulk gas impeller, flotation tank and skimmer, producing 30–100 μm micro-bubbles without the need for a circulating pump, air compressor or pressure vessel. By generating negative pressure and using high-speed perforated impellers to finely disperse air, the system causes micro-bubbles to attach to grease, jelly and suspended solids so they float to the surface for efficient skimming and sludge removal. Compact, low-maintenance and energy- and space-saving, CAF provides economical operation and scalable models tailored for industrial and municipal oily wastewater, dairy, pulp, meatpacking and general sewage treatment.

Cavitation Air Flotation Solutions

CAF Cavitation Air Flotation is an advanced Dissolved Air Flotation solution for industrial and municipal sewage that efficiently separates grease, jelly and suspended solids by attaching them to micro-bubbles. Its specially designed bulk gas impeller generates 30-100um bubbles without the need for circulating pumps, air compressors or pressure vessels, providing a compact, low‑cost and maintenance‑free operation. The integrated aerator, flotation tank and skimmer form a removable floating scum layer, making the unit ideal for oily wastewater from petrochemical, oilfield, food processing, dairy and pulp-and-paper industries.

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Efficient, Energy-saving, Rapid, Reliable

The CAF Cavitation Air Flotation for Industrial & Municipal Sewage was developed from decades of wastewater research and brand expertise, combining a patented cavitation reactor and precision controls to deliver a resilient, high-throughput treatment solution. By integrating Dissolved Air Flotation principles with micro-bubble cavitation, it rapidly removes oils, suspended solids and colloidal matter while minimizing chemical use and footprint. Features include high-efficiency micro-bubble generation, modular skid-mounted units, automated PLC controls and easy-maintenance access, delivering energy-efficient operation, high removal rates, straightforward scalability and lower lifecycle costs.

Material introduction

Built for Dissolved Air Flotation and cavitation air flotation processes, the CAF system uses corrosion‑resistant stainless steel for critical wetted parts such as the bulk perforated impeller and skimmers to ensure long service life in oily and industrial wastewaters. Main tank bodies are supplied in robust carbon steel with industrial epoxy or polyurethane linings, with optional stainless‑steel construction for aggressive media, while the aerator housing and high‑speed motor components employ precision‑machined alloys and wear‑resistant coatings to resist cavitation and abrasion. Non‑metallic parts like seals, gaskets and piping joints are specified in chemical‑resistant elastomers, and the electric cabinet is housed in powder‑coated or stainless‑steel enclosures for reliable control and easy maintenance.

◎ Stainless Steel (SS304 / SS316L)

◎ Epoxy‑Lined Carbon Steel

◎ FRP (Fiber‑Reinforced Plastic)

FAQ

What is CAF (Cavitation Air Flotation) and how does it work in sewage treatment?

CAF is a flotation process that generates very fine air bubbles using hydrodynamic cavitation. These microbubbles attach to suspended solids, oil, grease and some colloids, increasing their buoyancy so they rise to the surface as a concentrated float (scum) that can be removed mechanically. It accelerates particle-bubble contact compared with conventional dissolved-air flotation (DAF), often improving separation speed and compactness of the unit.

Which industrial and municipal sewage streams are best suited for CAF?

CAF is commonly used for wastewater streams with high suspended solids, oils/greases (FOG), emulsified hydrocarbons, and elevated COD/BOD — for example food and beverage, slaughterhouses, dairy, fruit & vegetable processing, oil & gas or refinery pre-treatment, pulp & paper, textiles, and municipal primary/secondary effluent polishing or stormwater pre-treatment. It works well as a primary/secondary clarifier upgrade or as a pre-treatment before biological processes.

What treatment performance and removal rates can be expected?

Removal depends on influent characteristics and whether chemical conditioning is applied. Typical ranges seen in practice: oil & grease removal often 80–98%, suspended solids removal commonly 60–95%, and significant reductions in total and soluble COD/BOD when combined with coagulation/flocculation. Exact results vary with particle size, chemistry, and retention time.

Will CAF require chemicals and how is sludge handled?

CAF can reduce chemical dosing compared with some conventional systems, but many applications still use coagulants or flocculants to destabilize fine colloids and improve separation. The floated scum is concentrated and usually dewatered or thickened before disposal; typical downstream options include belt or screw presses, centrifuges, or further biological digestion depending on the plant’s waste management strategy.

What are the space, energy and installation considerations for CAF systems?

CAF units are relatively compact compared with large gravity clarifiers. They require pumps and cavitation-generating hydraulics rather than high-pressure compressors, so footprint and civil works are often smaller. Energy consumption is site-dependent; CAF can be energy-efficient for cases where rapid separation and small footprint are priorities. Installation can be modular or skid-mounted for easier retrofit into existing plants.

What are typical operational and maintenance needs and limitations of CAF?

Routine operation includes monitoring flow, pH, chemical dosing (if used), surface scum removal and periodic cleaning of contact surfaces. Wear parts (pump impellers, seals) need scheduled inspection. Limitations: very fine colloidal matter may still require coagulation to achieve target effluent quality; heavy grit or large debris should be removed upstream; performance is sensitive to influent variability, so equalization or buffering is often beneficial.

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