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Wavin Certaro Lamella Hydrodynamic Separator

Urban areas face increasing challenges from polluted stormwater runoff. The Wavin Certaro Lamella Hydrodynamic Separator offers a compact, high-performance solution for sediment separation, helping cities protect their most valuable resource: clean water. Designed for limited spaces and large catchment areas, this system ensures efficient treatment of surface water while minimising installation and maintenance efforts.

Engineered for Performance with hydrodynamic–lamella efficiency

Up to 6,000²Designed to treat runoff from areas of 1,000 - 6,000m², depending on requirements
80%Removes up to 80% of total suspended solids
1-40l/sTested treatment flow rates
DN1000Fits easily into space‑constrained urban networks
320/720/ 1,120 lFlexible capacity to extend maintenance intervals

Tackling Urban Water Pollution at the Source

Stormwater runoff from roads, rooftops, and industrial areas carries a complex mix of pollutants—heavy metals, hydrocarbons, microplastics, and nutrients. These contaminants, often bound to fine sediments, pose a serious threat to water quality and aquatic ecosystems.

The Wavin Certaro Lamella HDS is engineered to intercept these pollutants before they enter natural water bodies. By combining hydrodynamic separation with lamella settling technology, it delivers high removal efficiency in a small footprint—ideal for dense urban environments.

Compact Design, Maximum Performance

Despite its compact DN1000 size, the Certaro Lamella HDS handles runoff from areas of 1,000 to 6,000m², and even larger areas when configured with multiple units or adapted flow rates.

It delivers for an area of 6,000 m²:

  • 77% total suspended solid removal efficiency
  • 98% removal of coarse particles (63–400 µm)

Its modular design allows for flexible configurations, including optional risers for deeper installations and bypass options for high-flow events.

Why choose Certaro Lamella HDS?

High Separation Efficiency
Combines hydrodynamic and lamella technologies to remove up to 80% of Total Suspended Solids (TSS).
Small Footprint
Fits into tight urban spaces with a DN1000 size - ideal for retrofits and new developments.
Easy Maintenance
Cleaned like a standard road gully. Quick access via central shaft and plug system.
Flexible Installation
Modular risers and bypass options adapt to varying site conditions and flow rates.
Environmentally friendly building. Sustainable glass office building with wood to reduce carbon emissions.
Green Urban Scene - Berlin
Sunset in city park with benches and trees

Designed for Urban Resilience

For Engineers & Designers:

  • Compliant with DMRB and DCG
  • Compact DN1000 chamber simplifies planning
  • Modular risers (125–1000 mm) for invert depths up to 3.1 m
  • Optional bypass at 20 or 40 l/s to prevent upstream flooding

For Contractors:

  • Installation compatible with PC concrete or modular plastic chamber
  • Delivered in stackable components for easy transport
  • Quick installation with minimal excavation
  • No special tools required for assembly

For local authorities & Investors:

  • Reduces long-term maintenance costs
  • Enhances compliance with water quality regulations
  • Protects the local environment and contributes to cleaner water

Technical Specifications

  • Chamber Diameter: DN1000
  • Design Runoff Area: 1,000m to 6,000 m² (expandable with multiple units)
  • Sediment Removal Efficiency up to:
    • TSS 0.8
    • Hydrocarbons 0.7
    • Metals 0.63
  • Sludge Sump Volume: 320–1120 L (with risers)
  • Floatables Retention Volume: 170 L
  • Invert Depth Range: 1.1–3.1 m
  • Installation Depth: 2.4–5.4 m
  • Inlet/Outlet Diameter: DN250
  • Material: Recycled PE
  • Traffic Load Resistance: Yes (with appropriate cover solution)
  • Complies with UK SuDS standards:
    • British Water Code of Practice: Assessment of Manufactured Treatment Devices Designed to Treat Surface Water Runoff
    • Ciria SuDS Manual (C753)
  • Product tested to:
    • DiBT Testing Principles including resistance to pollutant remobilisation

Key Applications

Roads and Traffic Areas
Effectively captures sediment and pollutants from high-traffic surfaces.
Open air big parking for residents of the area, top aerial view from high.
Car Parks
Suitable for areas where below ground space may be limited.
Modern industrial building stands in parking lot under clear sky. Large facility with many windows, flat roof. Cars parked outside facility. Looks like innovative professional workplace. Modern
Industrial Zones
Removes fine particles and microplastics omitted from manufacturing and industrial areas.
Exterior view of a modern commercial building at sunset, featuring sleek architecture, a glass facade reflecting the colorful sky, and ample parking space. The building showcases contemporary design and is well-suited for business or industrial purposes.
Commercial Centers
Efficiently handles high flow volumes to manage water run off from roofs, car parks, and walkways.
Frequently Asked Questions

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