Screening with efficiency with ANDRITZ Aqua-Screen fine screens

How to select the right screening technology?  One step forward in efficient screening!

Proper screening is the first and one of the most important steps in a wastewater treatment plant (WWTP). Critical parameters must be taken into account when selecting proper screening technology as each application or project is different. The following parameters are critical when selecting the correct equipment: application, flow, load, composition of screenings (sticky, fine, etc.), size of screenings, and so on. With more than 150 years of experience in the design and manufacturing of solid/liquid separation technologies, ANDRITZ can help you find the right solution to meet your specific screening requirements.

Your benefits

The ANDRITZ Aqua-Screen fine screen uses standardized and common frame parts. This design provides our customers with the following benefits:

• Reduced maintenance time
• Reduced number of different spare parts
• Operator-friendly adjustments with improved access door
• Pop-out/pop-in modular design for screen racks and panels (less than 30 minutes for complete replacement of filter element)
• Automatic detection of wear on supporting rail (on XL T version only)
• Automatic detection of drive chain tensioning (on XL version only)

A modular concept for greater flexibility and cost savings

With its modular concept, the ANDRITZ Aqua-Screen fine screen is a high-tech solution adapted to your needs, integrating all existing screening categories:

• ANDRITZ Aqua-Screen T – Toothing system allows effective, two dimensional fine screening and a lifting capacity (dimensions/quantity) unrivalled on the market; can be adapted to any application
• ANDRITZ Aqua-Screen P – Perforated plates system allows circular, two dimensional fine screening – one of the most efficient on the market; can be adapted to most applications

Common frame for ease of maintenance

FRONT DISMANTLING: The ANDRITZ Aqua-Screen fine screen features a frontend access door. The complete rack holding the filter elements can be removed in one step through this access point. This means that downtime is reduced to a minimum, typically taking less than 30 minutes for a field service technician to change the filter elements. In addition to the time saved, this maintenance friendly design, requires much fewer steps and parts to complete the operation of changing the screen filter.

ISM – INTELLIGENT, SIMPLIFIED MAINTENANCE: An innovative maintenance concept has been developed for the ANDRITZ Aqua-Screen fine screen and comes as standard on large models: ISM (Intelligent, Simplified Maintenance). The ISM system allows preventive maintenance by monitoring rail wear and chain tensioning. Sensors inform the operator before failures occur – this not only protects the equipment and plant, but also limits maintenance costs and reduces downtime.

Self-washing, continuous fine screen – the ANDRITZ Aqua-Screen T

With more than 6,000 references delivered over more than 40 years, and recognized as the most efficient headwork screen, the ANDRITZ Aqua-Screen T fine screen is one of the most reliable screening technologies available on the market today.

Benefits of Aqua-Screen T tooth fine screen:

• Pop-out / pop-in modular filter racks that can be replaced easily from the front of the screen with optimum accessibility for ease of maintenance
• Improved teeth design allowing increased screening and lifting capacity
• Improved capture rate
• Optimal efficiency thanks to bi-dimensional separation and unmatched lifting capacities (dimensions/quantity)
• Fewer wear parts means reduced maintenance costs
• Versatility in combination with Aqua-Screen P fine screen (possible to convert from one model to the other to improve the capture rate)
• No submerged bearing for maintenance ease and increased lifetime
• Can be adapted to handle the most challenging applications
• Also available in off-channel, tank-mounted version

High capture rate with ANDRITZ Aqua-Screen P perforated-plate fine screen

Building on our extensive experience with other screening technologies, ANDRITZ has developed the ANDRITZ Aqua-Screen P fine screen, a perforated-plate fine screen. It allows high capture rates of up to 85% – the best level ever achieved for headworks in WWTP.

Benefits of Aqua-Screen P perforated-plate fine screen:

• Circular mesh allowing the best capture rate in fine screening
• Separation in two dimensions for higher capture rate (the same mesh vertically and horizontally)
• Double cleaning system outside the filtration area, allowing optimal efficiency
• Perforated plate has a modular design, thus fewer spare parts are needed and the supply chain is shortened
• Versatility in combination with ANDRITZ Aqua-Screen T fine screen (possible to convert from one model to the other to improve lifting capacity)
• No submerged bearing for maintenance ease and increased lifetime
• Increased cleaning performance thanks to adjustable cleaning brush and bi-directional spray ramp

Applications

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