Vertex - Surface Aerator

Excellent Oxygenation and Mixing

The Vertex Surface Aerator has the best mixing capability of any vertical shaft surface aerator. Due to the unique blade design, the impeller induces a strong axial flow pattern which ‘pumps’ oxygen-deficient water up from the tank floor and forces it out to the tank sides. This strong, deep circulation improves oxygen transfer and mixing throughout the tank. This action is superior to the surface radial flow pattern created by most other similar vertical shaft surface aerators, which provides little dissolved oxygen and mixing at depth. This advantage gives Vertex aerators efficiency gains of up to 25% in clean water tests compared to other modern designs.

Consistent High Efficiency

The efficiency of Vertex is maintained for the full lifetime of the aerator, often up to 30 years. This makes their whole life cost efficiency compare favourably with other aeration technologies such as Fine Bubble Diffused Air, which always show a decline in efficiency over time and require new diffuser membranes to regain their efficiency.

We guarantee a Standard Aeration Efficiency (SAE) of 2.3kgO2/kWh on most of our proposals; however, independent tests have shown results of up to 2.8kgO2/kWh.

Extremely Low Reaction Forces

The design of Vertex is such that both radial and axial forces are much lower than with conventional surface aerators. This has many advantages – primarily that the forces and vibration on the gearbox bearings and mounting structure are significantly lower.

Self-Cleaning

The design and the shape of the blades is such that it is virtually impossible for rag or other detritus to attach to the impeller.

Low Maintenance Costs

All maintenance items are accessible from the mounting platform, and maintenance is limited to an annual oil check (2 years with synthetic oil) and periodic checking of greasing points.

Wide Turndown Range

Depending on circumstances, it is possible for a single Vertex aerator to transfer anything from 1 to 500 kg O₂/h into water. Their Standard Aeration Efficiency (SAE) is near-constant over a wide range of speeds and immersion depths.

Universal Applications

Vertex can be installed in a fixed or floating configuration in virtually any tank from 2 – 10m depth: aeration tanks, oxidation ditches, SBRs, lagoons, balance tanks and sludge tanks. They maintain high efficiency in a wide range of wastewater, effluent and clean water applications.

FEATURES

• Strong axial flow pattern
• High oxygen transfer rates as a result of the above
• Simple, robust and long-life design
• Platform and float-mounted options
• Widest aeration turndown
• `Anti-rag` impeller blades
• Baffles or draft tubes where required

BENEFITS   

• Improved mixing and oxygenation and at greater depths    to maximise
• treatment efficiency   
• Improved energy efficiency and lower operating costs   
• Reduced whole life costs from the long asset life and low   
• maintenance requirements   
• Greater flexibility for easy integration in existing plant designs   
• Variations in treatment accommodated without wasted energy   
• Reduced risk of performance and maintenance issues caused by rag   
• attachment   
• Improved treatment performance in deep tanks