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Quantifiable capture rate: Testing at Coventry University (UK) has indicated that the Downstream Defender® separator can remove 68% to 99% of settleable solids, including large proportions of fine particles (less than 100 microns), 80% to 97% of free oils and floating gross pollutants. |
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No re-entrainment or wash-outs: The storage zone is isolated to prevent the captured pollutants re-entraining the stormwater flow so what is captured is kept. |
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No loss of treatment efficiency: By isolating the storage and treatment zones, the Downstream Defender® separator maintains its treatment capacity and removal efficiency until maintenance is required. |
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Versatile: Downstream Defender® separators use only a fraction of the land area of other treatment options (i.e. sediment pits or detention ponds) and their small footprint allows them greater choice of treatment location. |
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Low headloss: The Downstream Defender® separator has large, clear openings and no internal restrictions. Because there are no internal orifice plates or weirs, hydraulic losses are minimised. |
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Easy installation: Installing a Downstream Defender® separator is as simple as installing a standard access chamber. The Downstream Defender® separator is delivered to site completely fabricated, ready to be installed in the excavated hole and connected to the drainage system. |
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Can be used as a spill control system: With the addition of a spill tank, the Downstream Defender® separator provides an effective spill control system as well as removing sediments, fines and litter. This is ideal for major road projects where there is a requirement to control potential hydrocarbon spills. |
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Quality Assured: (ISO 9001:2000) - the Downstream Defender Hydrodynamic separator is manufactured under license from Hydro Australasia. |
