Downstream Defender® advanced hydrodynamic separator

  • Downstream Defender® Protecting a stormwater pond
    Downstream Defender® Protecting a stormwater pond
  • Cross-Section of a Downstream Defender®
    Cross-Section of a Downstream Defender®
  • Downstream Defender® showing internals
    Downstream Defender® showing internals
  • Downstream Defender® with Stormbloc® & Hydro-Brake®
    Downstream Defender® with Stormbloc® & Hydro-Brake®
  • Downstream Defender® (foreground) protecting a pond
    Downstream Defender® (foreground) protecting a pond
  • 1200 mm Downstream Defender
    1200 mm Downstream Defender
  • Downstream Defender installation
    Downstream Defender installation
  • Downstream Defender® vortex separator
    Downstream Defender® vortex separator
  • Downstream Defender® vortex separator
    Downstream Defender® vortex separator

Type Vortex separators
For the removal of Heavy metals
Hydrocarbons
Nutrients
Sediment
Features No moving parts

Copy spec

The Downstream Defender® is an advanced hydrodynamic vortex separator for the removal of sediment, oil and floatables from stormwater runoff.

The Downstream Defender® is proven to be more efficient than other structural treatment devices: it uses only 50% of the footprint of conventional structures and is the only deviced that has internal components proven to prevent pollutant re-entrainment (or washout).

The Downstream Defender® is efficient over a wide range of flows. It has no moving parts and requires minimal maintenance. It has been approved by regulatory agencies throughout the world.

Applications

• Control of sediment, floatables and petroleum products.
• Highway runoff
• SuDS schemes
• Wetland schemes
• Basin and pond protection
• Park & Ride schemes
• Watercourse and pond protection
• Industrial and commercial areas
• Vehicle maintenance washdown yards
• Quarry settlement ponds

Targeted Pollutants

  • Fine particles
  • Gross pollutants
  • Liquid and sediment bound hydrocarbons
  • Sediment bound heavy metals
  • Sediment bound nutrients

The Hydro StormTrain® Series

The Downstream Defender® is part of the Hydro StormTrain® Series of surface water treatment devices, a comprehensive toolbox for silt, sediment and pollutant removal as part of SuDS. 

The Hydro StormTrain® Series comprises four products, First Defense®, Downstream Defender®, The Up-Flo™ Filter and Hydro Filterra™ that can be used independently or in combination to deliver a Treatment Train that meets the water quality stipulations of a site. They can also be used to protect, enhance or enable natural SuDS features such as ponds or attenuation tanks.

Try out our Treatment Selection Tool and explore the results of combining proprietary and natural treatment solutions. www.hydro-int.com/stormtrain/tool

The Downstream Defender® can also be used in conjunction with our Hydro-Brake® Flow Control and Stormbloc® storage/infiltration system, to provide a complete SuDS solution which includes flow control, storage / infiltration and treatment.

Hydro International

Related entries

  • Hydro International

    The precarious wetland habitat at Shortwood Pond off the A308 by the Crooked Billet Roundabout is home to endangered species such as the Brown Galingale plant and the Little Whirlpool Ramshorn snail. It is part of Staines Moor, located at the eastern end of Colne Valley Park, which contains many Sites of Special Scientific Interest.

  • Hydro International

    Highway degradation and surface water pollution in an environmentally sensitive area of the Scottish Cairngorms Mountains famous for its whisky production have been tackled with an imaginative SuDS Solution from Hydro International which has averted potential road safety problems on the A95. Poor drainage, flooding and freezing weather had led to a landslip and extreme surface degradation along a section of the narrow A95 that descends on a 10% gradient with tight bends to the picturesque village of Craigellachie on the River Spey, near Elgin.

  • Hydro International

    Thursday, November 08, 2012

    Highway degradation and surface water pollution in an environmentally sensitive area of the Scottish Cairngorms Mountains, famous for its whisky production, have been tackled with an imaginative SuDS Solution from Hydro International which has averted potential road safety problems on the A95. Poor drainage, flooding and freezing weather had led to a landslip and extreme surface degradation along a section of the narrow A95 that descends on a 10% gradient with tight bends to the picturesque village of Craigellachie on the River Spey, near Elgin.


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Location and contact details for Hydro International

  • A. Head Office
    Shearwater House
    Clevedon Hall Estate
    Victoria Road
    Clevedon
    BS21 7RD
    Tel: 01275 878371
    Fax: 01275 874979
  • B. Ely Office
    Kiln Lane
    Prickwillow Road
    Ely
    CB7 4TX
    Tel: 01353 645700
    Fax: 01353 645702

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Downloads
Download 28683_1377268394237.pdf
Download 28683_1377268802554.pdf
Download 28683_1377272218585.pdf
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Downstream Defender® Specification Clause
1pp, 35KB
Download
Download 28683_1400062477250.pdf

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