BIRCOprime® evo | The perfect combination of sedimentation & filtration
First-class sedimentation and filtration, all along the drainage
Maximum retention, maximum sedimentation: With BIRCOprime® evo, BIRCO introduces a rainwater treatment system that cleans the water while it flows off. First, the particle sedimentation takes place invisibly directly inside the drainage channel system. This is because sedimentation in BIRCOprime® takes place via a weir system that is integrated into the channel
– without any chemical or biological treatment at all. Immediately afterwards, the system also filters out non-sedimentable pollutants, which ensures thorough purification.
Clear arguments & convincing benefits
- Compact rainwater treatment system in channel form
- Sedimentation chambers with overflow weirs (designed as „1“ shape) effectively retain solids. Only minimal remobilisation even during heavy rainfall events
- The rainwater that has been freed of solids is channelled through the filter granulate. Adsorption and precipitation remove dissolved organic and inorganic pollutants from the water
- Solids (AFS 63) and particulate-bound pollutants are removed
- Retention of light liquids (oils, petrol, etc.)
- The purified water can now be used as process water, discharged into flowing waters or infiltrated into the ground
- Quick installation, factory assembly and installation to EN1433 Type I standard
- Simple inspection and maintenance (maintenance intervals of up to 5 years - depending on pollutant loads/connected area)

1. Decentralised or semi-centralised inlet | 6. Overflow weir |
2. Weir 1–6 (base weirs) | 7. Filter substrate |
3. Laminar flow | 8. Outlet |
4. Min. turbulent flow | 9. Slotted DI gratings |
5. Sedimentation chamber | 10. Solid DI gratings |
How it works:
- The water is channelled over rising weirs.
- In the process, sediments settle between the weir elements in the sedimentation chambers and are effectively retained.
- Absorption and ion exchange filter out non-sedimentable substances.
- Maintenance is only necessary every 5 years (depending on the surface to be cleaned) and is very easy to carry out.
Application areas
- Heavily frequented roads and industrial areas
- Heavily frequented car parks
- Logistics centres
- Construction and commercial areas
- Suitable for treatment of areas according to cat. III (DWA-A 102)
- Suitable for connection areas categorised in D11/D12 in accordance with DWA-M 153
BIRCOprime® evo cleans rainwater and removes the following substances:
- Filterable substances (up to AFS63)
- Tyre abrasion
- Microplastics
- Mineral oil hydrocarbons (MKW)
- Polycyclic aromatic hydrocarbons (PAHs)
- Heavy metals (e.g. zinc, copper)
Technical data
| Inlet | Outlet | Length | Width at top/ at bottom | Height at tongue/ groove | Load class EN 1433* | Article number |
| via gratings | vertical | 4500 mm | 701/740 mm | 1200/1200 mm | A 15 - E 600 | 070030 |
| via channel | vertical | 4500 mm | 701/740 mm | 1200/1200 mm | A 15 - E 600 | 070031 |
| via pipe | vertical | 4500 mm | 701/740 mm | 1200/1200 mm | A 15 - E 600 | 070032 |
* On request also available up to load class F 900.



