Drum Filter Water Technology NDF
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NFS - Curved screen - NZB Description
The curved screen is a very simple screen, the screen design does not have any moving parts.
The unscreened waste water is fed on top of the curved screen and flows downwards. Water will flow between the spacings and the wedges and leafs the screen.
Solids larger than the spacings will be retained on the screening surface and will fall down into a collection container.
The curved screen design is including:
Wedge wire sieving plate which will retain particles half the size of the slot width
Special designed sieving plate to avoid blockages
Distribution plate to direct the waste water including solids over the sieving plate
Optional support, depending on location
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NFS Cloth Filters - Technical Data
The Nijhuis Water Technology drum filter (NDF) is designed for dewatering of excess sludge from biological treatment systems and special filtration applications.
The design is based on rotation of the drum with cloth and separation by gravity.
The NDF has the following features:
- In side fed system
- Special designed feed system for flow distribution
- Exchangeable cloths
- Cloth supported by perforated drum
- Self cleaning system
- Spray cleaning with water possible
- Stainless steel body
- Removable cover for easy maintenance
- Optional polymer dosing possible to increase performance
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NFS Cloth Filters - Customer Benefits
- Up to 80% savings on disposal costs
- Sludge volumes up to 5 times reduced
- Easy exchangeable inner cloths
- Cloth pore-size variable from 40 to 250 ?m
- Fully executed in stainless steel
- Can easily handle fluctuations in flow
- Smaller investments for further dewatering operations
- Applicable for various types of solid/liquid mixtures
- Easy replacement of filter drum elements