Disk Filter

MEC Disk

With the MEC Disk, pile cloth media filtration undergoes a generational shift. The patented process (PCT/EP2021/077496) resembles a record player. Cleaning is carried out simultaneously on all filter disks, whereby the suction beams are movable and can traverse the filter surface either in a stripe-shaped radial or spiral pattern. In addition to internal pumps, there is also the option to use dry-installed external pumps. Especially from 12 filter disks or a filter area of 60 m², the MEC Disk fully demonstrates its advantages and operates with fewer pumps and a simplified control and cabling structure.

Performance features

24/7 continuous outside-in filtration
Automatic and load-dependent inside-out cleaning
Simultaneous cleaning of all filter discs by movable suction beams
Flexible operating settings possible: point/partial cleaning, variable direction of rotation
Intensified cleaning of the pile cloth media through modified suction beam design
Lower cloth resistance and higher recovery
Fewer backwash cycles with equal or better effluent quality
Longer pile cloth media service life
Resource-efficient: up to 2x higher loading capacity, up to 50% less energy consumption and backwash wastewater generation
Fewer aggregates: max. 3 filter cleaning pumps, reduced effort for control & cabling
Easy maintenance: central pump arrangement for fast access and high occupational safety
Minimal footprint due to small disk spacing

MEC MegaDisk

MEC MegaDisk is the big brother of the MSF and offers the same advantages but extends the exceptional performance by increasing the disk diameter. The MegaDisk consists of eight interchangeable segments per disk (10 m² filter surface per disk), which are mounted on the central tube. The distance between the disks is 230 mm. Filter cleaning is performed using a central pump and a valve for each cleaning system.

Key Information

8 segments per disk (10 m²/disk)
Up to 24 disks per filter
Lightweight segments, removable without crane
Easy replacement of the filter media (filter cloth)
Disk diameter: 2,900 mm
Distance between the disks: 230 mm
Hydraulic capacity per unit up to over 3,800 m³/h
MegaDisk available in different steel qualities (1.4301, 1.4404, Duplex or Super Duplex)
Installation in concrete or steel tanks
Low-maintenance and powerful peripherals
MegaDisk with dry-mounted pump
Modular system ideal for every customer requirement

MSF

The Mecana Disk Filter (MSF) was developed for high hydraulic capacity. Mecana's outstanding operational experience in a wide range of municipal and industrial applications is a unique selling point.

The MSF consists of six segments per disk (5 m² filter surface per disk), which are mounted onto the central tube. According to the application, the distance between the disks is either 180, 240 or 300 mm. Every two/three disks have their own independent cleaning system, consisting of pivoting suction beams with (profiled) suction lip and a filter cleaning pump. The filter cleaning can also be performed with one central pump and one valve per cleaning system. However, filter systems with one filter cleaning pump per two/three filter disks offer advantages in terms of operational reliability.

How MSF works

The MSF is mounted in a filter tank equipped with an inlet and outlet weir for hydraulic decoupling as well as an emergency overflow and level measurement. The water flows through the fully submerged filter structure from the outside to the inside passing the pile layer and retaining the solids. Filtrate flows over the rising chamber and through the outlet weir. The outlet weir defines the zero-water level, which serves as a reference for system control. The filter media is cleaned by rotating the disc without interrupting the filtration process. Within one cleaning cycle, the entire filter surface is cleaned. In automatic mode, cleaning is either level-controlled or time-controlled. Within one cleaning cycle, the entire filter surface is cleaned. Suspended solids are intermittently removed from the bottom of the filter.

Key Information

6 segments per disk (5 m²/disk)
Lightweight segments, removable without crane
Easy replacement of the filter media
Up to 27 disks per filter
Disk diameter: 2,100 mm
Distance between the disks: 180 mm, 240 mm, 300 mm
Hydraulic capacity per unit up to over 1,000 m³/h
MSF fits in every truck
MSF available in different steel qualities (1.4301, 1.4404, Duplex or Super Duplex)
Installation in concrete or steel tanks
Low space requirement: < 2.5 – 9.1 m²/m²
Low-maintenance and powerful peripherals
MSF also available with dry-installed pumps
Modular system ideal for every customer requirement

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