Klargester Biodisc BB450 Sewage Treatment Plant (Integral Pump System) IPS

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Unit Size : BB

Population Equivalent : 2 Houses, upto 8 bedrooms

Overall Dia / Width (mm)  : 1995

Std Drain Invert Inlet (mm) : 450

Std Outlet (mm) : 835

Depth from Invert to base (mm) : 1400

Pipework Dia (mm) : 110

Sludge Storage Period (Approx) : 6 Months

Std Power Supply : Single Phase

Motor Rating : 50W

Weight (Tonnes) Std Units : 0.418


  • The Klargester BioDisc operates without noise or smell
  • Servicing requirements are reduced with very good access
  • No technical or mechanical faults
  • Low energy usage at 1.3 kw/d – approx 10-14 pence per day
  • Low sludge accumulation and sizeable storage capacity
  • Certified to European Standard EN 12566 – Part 3 – Annexe B – Performance Tests
  • The unique design of the system means that the Klargester BioDisc® is the only packaged sewage treatment system utilitising Rotating Biological Contactor technology for small domestic applications. This process offers inherent cost and performance benefits with a low carbon footprint.
The Klargester BioDisc has the lowest running and maintenance costs of any packaged treatment plant in its class. An important design feature is the drive motor which runs virtually silently, has low power consumption and a significantly greater design life expectancy than a typical compressor. Low running costs, combined with the quality and durability of the equipment, all add up to a significantly lower lifetime cost.
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For residential properties without access to mains drainage, the Klargester BioDisc delivers a reliable, effective and ecologically safe solution to your sewage disposal needs.

BB BioDisc – suitable for 2 houses, upto 8 bedrooms


The Klargester BioDisc is ideal for areas where discharge is to sub-surface irrigation or to a suitable watercourse if permitted. The Rotating Biological Contractor is unique to the BioDisc, and comprises of media discs onto which aerobic micro-organisms, naturally found in sewage, become established. Natural breakdown of sewage can then occur via the ‘breakdown process’:

  1. Wastewater and sewage flows into the primary settlement zone where solids are settled out and retained. This accumulated sludge should be drawn out periodically.
  2. Partially-clarified liquor containing fine suspended solids flows upwards into the first stage Biozone for breaking down by micro-organisms on the RBC. 
  3. Suspended solids return to the primary settlement zone and the liquor is transferred to the second stage Biozone for further treatment.
  4. Any solids remaining are settled out in the final settlement tank. The resulting very high quality effluent can be discharged to a watercourse.

Additional information



Sewage Tank Size

12 Person


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