Warden Biomedia

- Model Bioball - Biological Filter Media


Bioball has a spherical design and surface area of 220m²/m³. Bioball is a perfect solution when surface area is more important than voidage. With purpose-designed features Bioball, in the Warden Biomedia filter range, are an excellent alternative to traditional mineral-based media and are ideal for improved performance in new wastewater treatment plants.

Biological filter media of the relevant dimensions can replace all or part of the mineral-based media to improve system efficiency where it has become impaired by overloading. The surface textures of Warden Biomedia enable biomass or bacteria to adhere more effectively to reduce the loss of media due to installation procedures.

Modern plastic filter media eliminates problem relating to clogging and puddling associated with gravel, slag and clinker filter beds. Former biofilters using stones, slag or coke can easily be clogged after some time of operation. Modern technical solutions allow very high reduction of biogenic compounds. Reactivation and modernization of old type biofilter treatment plants is much cheaper than reconstruction of the treatment plants.

Warden's biological filter media are feasible for both industrial and municipal wastewater and are used for organic removal, nitrification and denitrification.

  • Low weight
  • Large active surface area
  • Compact
  • Easy upgrade of existing plants
  • Durable, long-life
  • Minimal clogging
  • Random filter media
  • High BOD5 reduction (up to 90%) and nitrification
  • Low capital, low installation, operating and maintenance costs
  • Corrosion resistant components

They are ideal for trickling filter beds in large scale industrial and municipal wastewater treatment plants, and suitable for the

  • Printing industry
  • Dairy product producers
  • Large SAF units
  • New housing developments
  • Municipal wastewater treatment plants
  • Industrial wastewater treatment plants

  • Material: Polypropylene*
  • Specific Gravity: 0.97
  • Dimensions: 65 x 53 mm
  • Surface Area: 220 m² / m³
  • Voidage: 92%
  • Weight (dry): 55 kg / m³
  • Weight (operational): up to 530 kg / m³
  • Consolidation: 5 - 10%
  • Flow Direction: Non specific

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