ASH Iso-Disc®
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The high-performance cloth media filter captures solids to produce reuse-quality filtrate in a continuous operating process. This advanced wastewater filtration system is designed for tertiary filtration and final polishing in municipal and industrial wastewater treatment.
Experience the benefits of a simple, efficient, and flexible wastewater filtration system
- High-quality tertiary filtration with California Title 22 Water Reuse Certification
- Easy to operate with fully automatic cloth media filtration and uninterrupted operation during the backwashing cycle
- Effortless maintenance with real-time individual filter element monitoring and streamlined upkeep
- Robust cloth media filter design
- Small footprint-to-flow ratio
Following its acquisition of Ashbrook Simon-Hartley, Alfa Laval also offers a tertiary filtration system. Utilizing innovative cloth media filtration technology, the Alfa Laval ASH Iso-Disc® wastewater filter ensures efficient and reliable performance for superior water quality. The wastewater filtration system flexibly fits your specific needs and can be easily expanded. Both square and rectangular cassettes fit within the path of the incoming water and are available to cater to different installation configurations. It also allows for individual visual assessment of the effluent flow rate and quality.
ASH Iso-Disc®: Advanced Cloth Media Filtration for Tertiary Wastewater Treatment
ASH Iso-Disc® is a compact, cost-effective tertiary filtration technology. Utilizing innovative cloth media filtration, the polishing filter is designed to remove solids of less than 10 microns. This outside-in depth filtration enhances solids capture and improves operation during high solids loadings and load variations.
A single cloth media filter unit can treat from 100 up to 20,000 m³ of wastewater per day. Unlike other wastewater filtration systems, it uses 100% of the available filtration surface at all times, maximizing unit effectiveness and providing a very small footprint-to-flow ratio.
Operational Flexibility and Easy Maintenance
The unique ASH Iso-Disc® cloth media filter design allows easy monitoring of individual filter elements through visual inspection or sample analysis (e.g., NTU). One filter element can be isolated, removed, cleaned, and replaced while others remain operational. This flexibility mitigates site upsets and enhances single-duty plant availability.
The simple nature of the wastewater filtration system, with very few moving parts, ensures that operation and maintenance requirements are kept to a minimum. There is no need for specialist maintenance tasks or upskilling of local operating teams, making cloth media filtration solutions ideally suited to remote or unmanned site locations.