Benefits:
- no sediment formation
- no scum formation
- up to twice the yield of digester gas
- less residual sludge, faster drying, lower disposal costs
- a higher sludge throughput rate, less throughput time
- short amortisation time for draft tube mixers
- 24H Online Service
- Aquagain and Träxler supports planners and engineering offices if they plan new systems
- Aquagain's Service Technicians are trained and experienced to service the mixers
Draft Tube Mixer TMA
*Draft Tube Mixers are calculated individually for each project and are available with flow rates up to more than 6,500 m³/h for digesters over 12,000 m³.
Contact us for a calculation of your Draft Tube Mixer.
The Draft Tube Mixer mixes the sludge in the digester tanks from the sewage treatment plants to achieve an optimal gas yield.
During this process, the contents are homogenised in the digester, avoiding large differences in temperature and composition.
The Träxler technology is suitable for all types of digesters. The system is robust and has been used for countless years. The system is also ATEX approved.
The process:
For mixing, sludge in the digester tank is fed through the draft tube pipe, which is nearly as high as the tank. If the rate of circulation is high, the draft tube mixer can recirculate the entire content of the tank within a very short time. This forms a homogeneous sludge mixture for a swift digestion process with the best yield of digester gas. By comparison, this forced circulations requires a little energy input. Therefore, this process is seen as highly economic if drive effort and digester gas yield are compared.
Design:
The goal of the design is an optimum of efficiency of the digester gas yield compared with the energy input. In close cooperation during the planning stage, we develop mixer for your specific case of use. The size of the mixer is determined by the volume the digester tank can hold, the form of the digester tank, the number of sludge circulations and the runtime each day. We produce mixers with flow rates of over 6,500 m³/h for digestion towers up to a content of over 12,000 m³.
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