• Biodisc domestic
  • BioDisc German closed
  • BioDisc German closed

For domestic dwellings without access to mains drainage, the Kingspan Klargester BioDisc® sewage treatment plant provides a reliable, efficient and environmentally safe solution to your sewage disposal needs. The market leading... read more

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Professional installation available


Delivery within 3 working days


Fully compliant product


60 years of wastewater expertise

Unique Design

The Kingspan Klargester BioDisc® is the only packaged sewage treatment plant utilising Rotating Biological Contractor technology for small domestic applications. This process offers inherent cost and performance benefits with a low carbon footprint.

Assured Performance

BioDisc® is a high performance package treatment plant which, in normal domestic situations, will produce effluent qualities of better than 10mg/l BOD, 15mg/l SS and 3.8mg/l ammonia.

​Features and benefits

  • Lowest running and maintenance costs of sewage treatment models in its class
  • No noise, no odours
  • Suitable for homes with up to 18 people.
  • Low profile covers for minimal visual impact
  • Invert options to match the site
  • Control panel issues an immediate alert when a problem occurs
  • Single phase standard power supply
  • Optional integral pump available
  • Certified to European Standard EN12566-3
  • CE-marked

 How the Kingspan Klargester BioDisc® Works

Central to the operation of each Kingspan Klargester BioDisc® is the Rotating Biological Contactor (RBC), which supports a biologically active film or biomass on to which aerobic micro-organisms, naturally found in sewage, become established. Natural breakdown of sewage can then occur as described below.

The Breakdown Process

Biodisc treatment process

Wastewater and sewage flows into the primary settlement zone (1) where solids are settled out and retained. This accumulated sludge should be drawn out periodically.

Partially clarified liquor containing fine suspended solids flows upwards into the first stage Biozone (2) for breaking down by micro-organisms on the RBC. Suspended solids return to the primary settlement zone and the liquor is transferred to the second stage Biozone (3) for further treatment.

Any solids remaining are settled out in the final settlement tank (4) . The very high effluent quality is discharged to a watercourse.

The RBC comprises banks of vacuum formed polypropylene media supported by a steel shaft. This is slowly rotated by a low energy consumption electric motor and drive assembly.

Note:The Kingspan Klargester BioDisc® is designed to deal with normal domestic sewage. If the sewage is likely to contain unusual substances, please consult Kignspan Klargester.

Population equivalent 1 house up to 4 bedrooms 1 house up to 7 bedrooms 2 house up to 8 bedrooms 3 house up to 12 bedrooms
Overall diameter mm  1995  1995  1995  2450 
Standard drain inlet mm  750  750  750  600 
Standard outlet mm  835  835  835  685 
Depth from invert to base mm  1400  1400  1400  1820 
Pipework diameter mm  110  110  110  110 
Sludge storage period (approx) 12 months   9 months   6 months   7 months  
Standard power supply Single phase   Single phase   Single phase   Single phase  
Motor rating  50W  50W  50W  75W 
Weight (tonnes) standard units 0.388 0.418 0.418 0.650