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Decentralised Treatment of Stormwater HUBER Hydro Filt |
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Sustainable treatment and infiltration of metal-containing stormwater runoff with the HUBER Hydro Filt system
- Adsorption of metallic material
- Cost-efficient alternative to central plants
- High pollutants retention rate
- Easy to retrofit
- Allows for installation under roadways
- Retention and infiltration with small space requirements
- Applicable also in built-up urban areas
- Long system life
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The HUBER Hydro Filt is an innovative and efficient filter system for purification and subsequent filtration of metal-containing rainwater from the roofs of buildings. The system consists of an upflow filter insert of a special filter material and is installed into concrete shafts approved for the purpose of rainwater infiltration. The chemical-physical process of ion exchange removes metallic ions from the rainwater to be treated. The special features of this filter system are its capability to virtually completely remove the high concentration of pollutants incurring with the first flush at the beginning of a storm event, and its easy regenerability.
Depending on the filter utilisation rate and amount of roof runoff to be treated, the filter material has to be regenerated to re-establish its full adsorption capacity. This is achieved by simple backwashing without the need for any additional treatment.
In view of the lack of space in conurbation areas that would be required for a central above-ground infiltration plant, the HUBER filter system is designed for underground installation so that no additional space is required. The system is, of course, also suited for retrofitting into existing shafts that allow an upflow system.
The complete system is very cost-effective and requires only minimum maintenance and cleaning. The preceding sedimentation chamber prevents silting up of the plant, in particular of the HUBER Hydro Filt and the partial drain pipe. Every 8 – 10 years, depending on the filter utilisation rate, the mineral particles in the sedimentation chamber have to be removed through a suction line via the external connection for the suction pipe and the filter backwashed from the top with a washing liquid. The complete plant is then ready to operate again.
If there is an emergency overflow, the stormwater to be treated flows through the shaft directly into the partial drain pipe that retains in this case the pollutants. The maximum pollutants retention is thus ensured under any operating conditions to protect the soil and groundwater.
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HUBER - WHERE QUALITY AND SERVICE SPRING TO MIND
Huber Technology UK, Units C and D Brunel Park
Bumpers Farm, Chippenham Wiltshire SN14 6NQ
Phone +44 1249 765000, Fax +44 1249 449076, E-mail: rotamat@huber.co.uk |
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