For phos­phorus, micro­pol­lut­ants and suspended solids removal

Space-saving! Powerful! Flexible for universal use!

Flexbed Filter — a robust depth filtra­tion with compres­sible filter media and low space requi­re­ments: an optimal solu­tion for effi­cient water and waste­water filtration.

How the Flexbed Filter works

Filtra­tion

  • Up-stream filtra­tion process with 40 to 75 m³/m²∙h
  • Compressed filter medium between two perfo­rated plates
  • Diffe­rent and flexibly adjus­table pore sizes

Back­wash

  • Auto­ma­ti­cally when maximum pres­sure is reached
  • Low amount of rinsing water (20 min at 25 m³/m²∙h)
  • No fresh or clean water needed
  • Low energy consump­tion for back­wash air

Appli­ca­tions

  • Space-saving floc­cu­la­tion filtra­tion to achieve very low phos­phorus concentrations

  • From waste­water, raw water, ground­water, surface water, indus­trial water and process water
  • Removal of TSS and parti­cu­late COD (acti­vated sludge flocs) from waste­water treat­ment plants
  • Police filter before discharge into sensi­tive water bodies

  • Particel removal from indus­trial wastewater
  • Filtra­tion of surface water for produc­tion processes

  • Treat­ment of water from produc­tion cycles
  • Partial flow treat­ment of cooling water
  • Treat­ment of water for indus­trial purposes

  • Effi­cient filtra­tion down­stream a powdered acti­vated carbon dosing
  • Pre-filtra­tion upstream Ozoni­sa­tion and/or GAC adsor­bers to prevent acti­vated sludge carry­over and ensure effi­cient operation
  • For all sizes of waste­water treat­ment plants

  • Upstream advanced treat­ment stages like
    o UV disinfection
    o Ultrafiltration
    o Desalination
  • For agri­cul­tural appli­ca­tion (sealing, irrigation)
  • Before ground­water recharge/infiltration

Advan­tages of the Flexbed Filter by zahnen

Perfor­mance Features

  • Hydraulic load: Ø 75 m³/m²·h

  • Back­wash filter

  • Pore sizes can be flexibly adjusted

  • No filtrate required for backwashing

  • Long life­span of filter media (10+ years)

  • Remo­vable particle sizes ≥ 5µm (inclu­ding microplastics)

Advan­tages

  • Small space requirement

  • Low back­wash waterr consumption

  • Univer­sally applicable

  • Does not clog

  • Low main­ten­ance effort and costs

Refe­rences

Leachate Treat­ment Plant “Alte Schanze” Pader­born (Germany)
2 Flexbed Filter Type 1 (Duplex)
Filter basis area: 0.25 m² (per module)
Capa­city: 18 m³/h (total)

 

Tertiary Treat­ment Stage, Barn­trup Waste­water Treat­ment Plant (Germany) (Micro­pol­lutant and Phos­phorus Removal)
4 Flexbed Filter Type 7 (Stain­less Steel)
Filter basis area: 4.0 m² (per module)
Capa­city: 300 m³/h (per module)

Down­loads

Data sheets

Are you inte­rested in our services and products for your project?

Your contact: Dr. Kathrin Gantner