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Efficient Air Dissolution

The saturator is a critical component of Dissolved Air Flotation (DAF) systems, responsible for dissolving air into water under pressure. Our saturators utilise high-efficiency Pall ring packing to maximise the air-water contact surface area, ensuring optimal air dissolution for superior flotation performance.

Pall rings are a type of random packing media with an open structure that provides excellent gas-liquid contact while maintaining low pressure drop. The unique design allows for efficient mass transfer, resulting in higher air dissolution rates compared to conventional packing materials.

Our saturators are engineered for reliable, continuous operation with minimal maintenance requirements. The stainless steel construction ensures durability and corrosion resistance in demanding water treatment environments.

Key Advantages

High-efficiency air dissolution
Optimised Pall ring packing design
Low pressure drop operation
Stainless steel construction
Corrosion resistant
Easy maintenance access

Technical Specifications

Operating pressure
4-6 bar
Air dissolution rate
Up to 90%
Packing material
PP or SS316 Pall rings
Vessel material
Stainless steel 304/316
Flow range
5-500 m³/h

Applications

DAF flotation systems
Wastewater treatment
Industrial pre-treatment
Food processing
Oil-water separation
Sludge thickening

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Process Fundamentals & Design

This treatment stage is engineered to achieve specific contaminant removal targets while providing stable, predictable performance across variable inlet conditions. Design parameters are calculated from wastewater characterisation data, regulatory requirements, and site-specific constraints including footprint, energy availability, and operator capability.

Process Optimisation

Design validated by CFD modelling and pilot testing to confirm performance guarantees.

Mechanical Reliability

Equipment selected for 20-year design life with minimal wearing parts and easy access.

Chemical Efficiency

Automated dosing and feedback control minimise reagent consumption and sludge production.

Compliance Assurance

Online monitoring and data logging demonstrate continuous consent compliance.

Design Parameters

Design Flow10 – 5,000 m³/h (application specific)
Inlet VariabilityDesigned for 1:3 peak-to-average flow ratio
Removal Efficiency85 – 99% depending on target contaminant
Hydraulic RetentionCalculated from kinetic constants and safety factors
Power Consumption0.5 – 5.0 kWh/100 m³ (process dependent)
Chemical DoseAuto-controlled based on online analysers
Sludge Production0.2 – 1.5 kg DS/kg contaminant removed
MaterialsSS304, SS316L, or carbon steel with coating

Integration with Treatment Train

No treatment stage operates in isolation. This process is designed to receive conditioned influent from upstream stages and deliver effluent quality suitable for downstream processes. Hydraulic and organic loading rates are balanced across the complete treatment train to prevent bottlenecking and ensure overall plant efficiency. Our engineers model the complete flowsheet to optimise Capital expenditure and Operating expenditure across the plant lifecycle.

Upstream Protection

Screening, equalisation, and pre-treatment protect this stage from damage and overload.

Downstream Conditioning

Effluent quality ensures downstream biology, filtration, or disinfection performs optimally.

Recycle Streams

Reject streams, filtrate, and centrate are routed back to appropriate upstream points.

Related Pages & Equipment

Equipment Catalogue

Browse our full range of water treatment equipment and systems.

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DAF Systems

Dissolved air flotation for solids and oil separation.

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Lamella Clarifiers

High-rate settling for primary and secondary clarification.

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Biological Treatment

Activated sludge, MBBR, and SBR systems for organic removal.

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Sludge Dewatering

Belt press, centrifuge, and screw press dewatering.

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Chemical Dosing

Automated coagulant, flocculant, and pH correction systems.

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Pilot Testing

Validate process performance with on-site pilot trials.

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Speak to Our Engineers

Request a consultation or quotation for your project.

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Need a Saturator?

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Industries We Serve

Our expertise spans multiple industries with sector-specific water treatment solutions.