The Tuke & Bell RoBeC consists of a G.R.P. tank which is separated into a number of different treatment zones. In the Primary Settlement Zone settles gross solids into sludge, the supernatant liquor then passes forwards into the Biozone. In the Biozone, slowly rotating contactor disks treat the effluent by means of biological oxidation, the treated liquid then flows intothe Final Settlement Zone. In the Final Settlement Zone any humus sludge or scum that forms as part of the natural biological process is removed by means of an automated recirculation pump system and returned to the Primary Settlement Zone for further treatment. The final effluent is then typically discharged to a reed bed or water course depending on local environmental allowances. The unit is entirely enclosed by walk-in covers; these contain any odours, guard the moving components and give a low visual impact to the plant.
The RoBeC is offered in a bespoke range of sizes to suit specific requirements such as local population and plant loading; this allows the unit to be tailored to the clients’ specification. Typically a single unit can treat a population from 25 up to 600; multiple units can be installed on a single site to increase maximum capacity. The flexibility of the RoBeC design allows it to be broken down into modular components if such a system is required.
Tuke & Bell has over 30 years experience with rotating biological contactors and developed its RoBeC unit in conjunction with Aston University and the design has been fully audited by Cranfield University. We have supplied RoBeC units to all major UK water authorities, working alongside them to further develop the design to its current form. The Tuke & Bell RoBeC is designed for a 20 year lifespan; however units are already exceeding this.
The Tuke & Bell RoBeC incorporates the following features: -
- Self contained package sewage treatment plant.
- Low running costs and maintenance requirements.
- Bespoke design ensures correct sizing and application of plant.
- Proven design with thousands of units installed.
- Automated design requires minimal operator input.
- Small unit footprint allows for simplified construction.
- Low visual and environmental impact.
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