Disc Sludge Thickener - Activated Sludge Thickener - Hydroflux HUBER

Disc Thickener

Unique sludge thickener for efficient thickening of waste activated sludge with over 1000 installations worldwide

Good sludge thickening is required as a prerequisite for the efficient further treatment or dewatering of sewage sludge.

The HUBER disc thickener ROTAMAT®Disc Thickener RoS 2S is a very high performance efficient system for thickening waste activated sludge.

It is a compact and fully enclosed system with very low operational costs, reliable and requires minimal operator attention.

It is designed for smaller sewage treatment plants with capacities with sludge capacities up to 40m3 per hour per unit.

Hydroflux Epco can package Dutch Spiral shaftless screw conveying systems designed specifically for the Huber ROTAMAT® Disc Thickener RoS 2S. Ideally suited to municipal and industrial sludge’s, wet screenings and grit. For more information on Dutch Spiral shaftless conveyors Click Here

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How it works

A slightly inclined, slowly rotating filter disc covered with a filter cloth separates flocculated sludge from filtrate.

A baffle plate distributes the inflow evenly across the entire filter radius. Sludge liquor collects on the bottom section of the filter disc so that a low hydrostatic pressure develops enhancing sludge liquor drain-off. Flexibly supported plows divide and move the sludge layer on the disc and open up furrows so that water can easily drain through the filter cloth, thus enhancing the filtration effect. At the sludge discharge outlet, a scraper pushes the thickened sludge from the disc. The filter cloth is cleaned by a spray bar so that the solids are washed back into the sludge to ensure the filtrate water is clear.

Main Features

As 80 % of the filter surface of the ROTAMAT®Disc Thickener RoS 2S are permanently used, a very compact and small machine design is possible.
Minimal space requirements for installation
Ideal as mobile installation
Easy container installation
Easy retrofitting
No need for foundations or service platforms
Variable inlet and outlet arrangement

Benefits

The beneﬁts of the ROTAMAT® Disc Thickener RoS 2S include

Sludge volume reduction > 85 %
Typical thickening results > 6 % DR
Low polymer consumption
Specific power consumption < 0.03 kWh/m³
Minimum operator attendance requirements of less than 10 minutes a day
Wash water demand < 5 % of sludge throughput
Wash water pressure < 3 bar
Filtrate water can be used as wash water for the spray bar.
Typical separation efficiency > 97 %
Easy and safe to operate
Throughput, polymer dose and filter rotation speed can be adjusted to optimise the degree of thickening.
Large inspection openings to facilitate maintenance and inspection
Encased thickener suitable for the treatment of strong-smelling sludge, protecting operators against harmful spray water aerosols
Automatic control technology
Suitable for unattended operation over 24 hours per day
Reliable operation
Robust design
Stainless steel filter cloth for long life
Slow filter rotation < 5 rpm
Low maintenance
No need for lubrication
Easy access for inspection, maintenance and operation
Proven in hundreds of installation