Domestic Treatment Plants
Klargester Domestic BioDisc Sewage Treatment Plants

The Kingspan Klargester BA BioDisc sewage treatment plant range has been designed to effectively filter sewage for domestic homes and properties.
A domestic sewage treatment plant, like the BioDisc, may be required if:
- Your home doesn't have access to main drainage, but discharge to a sub-surface irrigation, or suitable regulator-approved watercourse, is available
- You have a septic tank that doesn't meet the necessary standards
Suitable for up to 18 people, the BioDisc is the only packaged Sewage Treatment Plant which utilises the Rotating Biological Contactor technology for small domestic applications. This process offers great cost and performance benefits with a low carbon footprint.
Key things things to know about the Klargester BioDisc domestic range:
- Affordable running costs
- No smell
- Silent operation
- 7-year warranty offered on the BioDisc BA-BB range (terms apply)
- Third-party tested to EN12566-3 and CE marked
- Affordable service and maintenance plans available, commissioning available as extra
- Four models available
- Efficient packaged treatment plant which will produce effluent qualities which meet local requirements
- Low profile covers for minimal visual impact
- Suitable for homes with up to 18 people
Domestic BioDiscs are suitable for:
- Single/Multiple Homes
- Barn Conversion
- Small Office Development
- Stable Yard Toilet
- Farms
- Offices
How does a domestic BioDisc work?

1. Primary settlement tank:
Wastewater and sewage flows into the primary settlement tank where the large solids are retained for future removal.

2. First stage biological treatment:
The liquor and fine solids then flow into the Biological Treatment Zone 1 where the first stage of treatment occurs.

3. Second stage biological treatment:
The liquor is then fed forward at a controlled rate into Biological Treatment Zone 2 for further cleaning.

4. Final settlement tank:
The clean liquid passes into the final settlement tank where it can be discharged to ground or water course.
BA BioDisc sewage treatment plant technical information
PE | BA | BAX | BB | BC |
---|---|---|---|---|
6 | 6 | 9 | 12 | 18 |
Max. Daily BOD5 (g) | 360 | 540 | 720 | 1080 |
Max. Daily Flow (m³) | 1.2 | 1.8 | 2.4 | 3.6 |
Ø/Width (mm) | Ø1995 | Ø1995 | Ø1995 | Ø2450 |
Inlet Invert Depth (mm) | 450/750/1250 | 450/750/1250 | 450/750/1250 | 600/1100 |
Depth Below Inlet Invert (mm) | 1400 | 1400 | 1400 | 1820 |
Outlet Invert Depth (mm) | 1315 | 1315 | 1315 | 1735 |
Overall Height (mm) | 2160/2460/2960 | 2160/2460/2960 | 2160/2460/2960 | 2825/3325 |
Height to Rim of Cover (mm) | 1945/2245/2745 | 1945/2245/2745 | 1945/2245/2745 | 2485/2985 |
Empty Weight (kg) | 310/325/380 | 335/350/405 | 335/350/405 | 650/750 |
Standard Power Supply | 1 Phase | 1 Phase | 1 Phase | 1 Phase |
Full Load Current - Single Phase (A) | 0 | 0 | 0 | 1 |
Optional Power Supply | N/A | N/A | N/A | 3 Phase |
Element / Compound | BioDisc Removal Rate |
---|---|
BOD5 (Biological Oxygen Demand) | 95.7% (10 mg/l) |
COD | 89.4% (59 mg/l) |
Suspended Solids | 94.8% (15 mg/l) |
Ammonium Nitrogen | 88.6% (3.8 mg/l) |
We recommend installing a Kingspan Klargester BioDisc where possible, as it actively treats the sewage
- Lockable covers
- Fully removable covers to ease maintenance, simplify de-sludging and provide a safe working environment without the need for restricted access provision, a requirement of the Confined Spaces Regulations 1997
Get a quote for a domestic BioDisc Sewage Treatment Plant
Drop us some quick details about your requirements below and one of our off-mains drainage experts will be in touch with a quote.