Pile Cloth Filtration
Applications:
• Tertiary Solids Removal
• Phosphorus Reduction Schemes
With integrated coagulation and flocculation stages
Grenex Gdisk® & ChemDisk® Pile Cloth Filtration Offerings:
Key Information
Range of Diameter Disks
• 900mm, 1200mm, 2200mm (standard), 3000mm
• Up to 24 disks per machine
Standard, Standard Fine and Fine Cloth
• To achieve a range of effluent permits
Backwash Pump Options
• External centrifugal (common duty/standby with actuated valves)
• Internal pumps for 900mm Disks
Range of Tank Options
• Stainless Steel or concrete
Since 2009, more than 120 GDisk/ChemDisk Pile Cloth Media filter installations, treating in excess of 2,200,000 m3/d, have been installed around the world; including the world’s largest installation at Gwangju in Korea treated a peak of 600,000m3/d.All disks are mounted on a common central tube which conveys filtered water out of the tank to the effluent chamber. All operational functions of the filter are fully automatic, with manual override if required.
A summary of the further features/benefits of the GDisk® Process:
• Gravity filtration designed in a low-pressure head system
• 24-hour continuous operation, even when backwashing
• Outside to inside filtration
• Automatic backwashing triggered by water level controls
• Very low backwash water requirements
• OPEX Energy savings resulting from the very low power consumption
• Robust at handling wide variations in hydraulic and solids loadings
• Provides high filtrate quality of typically 1-5ppm TSS
The filters consist of very few mechanical components. The pumps and drive motor only operate on an intermittent basis, delivering excellent TOTEX.
• The cloth media is subjected to stresses only during cleaning, resulting in minimal wear.
• The backwash pump and sludge pump are a common unit and externally mounted for ease of access and maintenance.