Biwater Treatment - Products
Vertical Shaft Aerator - Medium Speed
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Aerators - Horizontal Rotor
Aerators - Vertical Shaft
•Medium Speed
•Slow
Speed
Tertiary Treatment
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Vertical Shaft Aerator - Medium Speed (TMA) |
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 75kW TMA in operation at Wanlip STW |
Key Features: • Power ratings from 4kW to 110kW. • High speed, range is 60 to 90 rpm. • Complete mixing • (SAE) into clean water 1.8 kgO2/kW/hr • 0.7 to 2.7m diameter • Bridge mounted or floating |
| General Description: The TMA Aerator is a vertical shaft surface aerator which provides a mechanical means of oxygen transfer to sewage or industrial effluent. Manual, or any required degree of automatic control can be provided, including adjustment of aeration intensity by dissolved oxygen monitoring. The TMA Aerators are easily constructed and are available for conventional bridge mounting, on tripods with light access bridges, in simple rectangular tanks or channels which can vary in size and arrangement. TMA Vertical Shaft Aerators can be installed in any configuration within aeration lanes thereby offering a broad range of treatment capabilities from small communities to major installations. Design: Biwater TMA aerators provide sufficient oxygen input and maximum mixing characteristics with a minimum expenditure of power. The proven operating characteristics mean that the installations are simple, inexpensive and efficient. Complete mixing and appropriate circulation velocities though the aeration tanks are achieved with the robust non-clog design. |
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| Process: Oxygenation of the fluid promotes cultivation and reproduction of micro-organisms which carry out the treatment process by breaking down organic matter. Oxygenation also re-establishes dissolved oxygen levels in the final effluent in order to sustain plant and animal life when discharged into rivers and lakes etc. Vertical shaft aerators achieve oxygen transfer by developing a large interface between air and liquid so that oxygen can diffuse from the air into the liquid. In achieving this it is necessary to prevent local build up of oxygen concentration by promoting good mixing within the liquid. The TMA Aerator satisfies both these criteria by drawing up sub-surface liquid and discharging it in heavy torrents, thus creating heavy turbulence upon striking the liquid surface with great force. |
Technical Data: Biwater Treatment offer a standard design of TMA Aerators in the range of 4KW to 110KW. All aerators are guaranteed for the standard aeration efficiency (SAE) into clean water (at 15 Deg. C) of 1.8Kg02/kW/hr (based on motor shaft power). Splash protection can also be provided in the form of GRP or steel covers. Full scale test conditions can be simulated for the majority of aerators at Biwater’s purpose built research test facility. |
| Click here for printable PDF | |
Tony Gillard
Business Development Manager
+44 (0)1706 367555
Reference Sites
• Workington STW, United Utilities
• Davyhulme WwTW, United Utilities
• Persley WwTW, Yorkshire Water
• Wombwell WwTW, Yorkshire Water
• Wanlip WwTW, Severn Trent Water
• Barnhurst WwTW, Severn Trent Water
• Flag Fen WwTW, Anglian Water
Biwater
Treatment Ltd Biwater Place, Gregge St, Heywood,
Lancashire, OL10 2DX
T:+44(01706) 367555 F: +44(01706) 365598 e:info@biwater.com
©Copyright Biwater Treatment Ltd
T:+44(01706) 367555 F: +44(01706) 365598 e:info@biwater.com
©Copyright Biwater Treatment Ltd
