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Excertos do catálogo
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Rainwater treatment using filter substrate channel al DIBt approv applied for
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Drainfix®Clean Application areas For the treatment of polluted stormwater from surfaces exposed to traffic, e.g.: parking lots yards trading estates roads with heavy traffic Ideal in situations where space is at a premium. Due to its large retention space, the system is also suitable for heavy rain events. • FASERFIX® SUPER 300 type 01H or 400 type 0 1H according to EN 1433 • usable height 505 mm • etention volume 75 to max. 110 litres r • channel made of fibre-reinforced concrete • oltless locking system SIDE-LOCK b • ery strong – up to loading capacity F 900 v • high bending tensile...
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• omplies with EN 1433 c • ifferent grating options d • spherical ductile iron; KTL coating optional • oading capacities from D 400 up to F 900 l • filter substrate contains carbonate • high carbonate content (lasts many decades) • precipitation / fixation of dissolved heavy metals • strong filtering effect; retention of very fine particles (0.006 to 0.060 mm) • cleaning performance is equivalent to a 30 cm thick layer of unsaturated groundzones Installation instructions channels are installed in concrete base 300 Typ 01H 400 Typ 01H resistant to frost and salt suitable for exposure to...
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Drainfix®Clean Hydraulic performance The draining performance achieved depends primarily on the resistance factor (kf) of the filter substrate and the retention volume of the channel. However, installation Hydraulic dimensioning of the channel filter system in accordance with KOSTRA-DWD 2000: intensity and distribution of precipitation location and situation also play important part for the correct hydraulic sizing of the filter system. DWA-A 138, DWA-M 153: recommended run-off factors The quantities of water to be handled by the system can be Ideal in situations where space is at a premium...
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The run-off factor qj determines the part of the precipitation which arrives at the drainage channel. As with the calculation of standard drainage channels, the quantity of precipitation arriving at the DRAINFIX CLEAN filter substrate channel needs to be calculated. The total quantity is the sum of the individual run-off quantities of connected areas with different surface finishes, based on their run-off factors and the selected rainwater yield or precipitation sequence.
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Drainfix®Clean Principles of rainwater treatment Pollutants (e.g. heavy metals) are mostly attached to very fine particles. The only way to retain these reliably is through filtration. The substrate has to be designed for this task! after 4 weeks the first particles can be detected The determining factor for the long-term hydraulic performance of filtration depends on the formation of the filter cake. The permeability of the filter substrate is only important at the beginning. In order to ensure that the filter cake remains permeable for prolonged periods, it is necessary for the filter...
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Large retention volume available after 10 weeks substrate is clogged up down to its base after 15 weeks filter cake starts to form after 20 weeks drying cracks in the filter cake on intact substrate Δ 190 mm Substrate as delivered Filter cake Example: Connected area: 10 m2 per 1 m – channel with NW 400 Initial situation: substrate saturated wet Rain yield: 270 l/[ha*s]; run-off coefficient: Discharge: 4,8 litres kf = 4 * 10-5 [m/s] heavily contaminated substrate
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09/2010 | PRINTED IN GERMANY ALL DRAWINGS, MEASUREMENTS AND WEIGHTS ARE NONCOMMITTAL! hauraton GmbH & Co. KG Werkstrasse 13 76437 Rastatt Germany Tel. +49 7222 958 0 Fax +49 7222 958 102 export@hauraton.com www.hauraton.com WE RESERVE THE RIGHT TO DO TECHNICAL CHANGES FOR IMPROVEMENT!
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