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ROTAMAT® Rotary Drum Screen RoMesh® |
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- Fine screen, river and sea outfall
- Service water recovery
- Defined separation size
- COD/BOD reduction
- Separation of hairs, fibres, fine suspended material
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The RoMesh® Screen consists of a horizontal square mesh basket (0.2 – 1 mm mesh) or a wedge wire basket (1 – 2.5 mm). The wastewater flows from inside to outside the basket through the screen surface. Filtrate is discharged vertically from the bottom of the drum and the screenings are transported horizontally by the rotation of the screen towards the discharge point where they are dewatered further or conveyed to another location. A spray bar with alternately operating
spray nozzles cleans the screen surface while the drum rotates. The screened wastewater can be reused as wash water if a sufficiently fine mesh is used.
This Fine screening offers the possibility of reliable mechanical removal of high solids concentrations and thus the oxygen-consuming substances. Separation of hairs, fibres and suspended material from municipal and industrial wastewaters ensures trouble-free and maintenance-free operation of subsequent treatment stages.
Preliminary separation of fine material is very important for Membrane Bioreactors, amongst other technologies, since such fine material can not only impair the plant's performance, but also cause major operational problems.
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| Flow diagram of the various applications |
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Reduction of COD/BOD5 in river and sea outfall apllications |
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Where river and sea outfalls have only a mechanical treatment stage, it is important to reduce the oxygen-consuming loads in the wastewater to avoid eutrophication of the receiving water. The RoMesh® Screen is able to reduce BOD5 by 20% and filterable solids (AFS) by 50% and thus can meet the required discharge standard. Combined with other process steps ou Rotary Drum Screen RoMesh® is very suitable for this application.
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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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