AQUA PRO-M aeration system
The AQUA PRO-M aeration systems based on the AFT APM-AF-128T tubular aerators are designed for aeration of the sludge mixture (wastewater with active sludge) in biological wastewater treatment systems.
The AQUA PRO-M aeration systems can be also used to saturate natural waters with oxygen in fish ponds and other water bodies, including natural reservoirs.
The main elements of the AQUA PRO-M aeration system are the AFT АPМ-АF-128Т aerators manufactured on the basis of a profiled frame tube – universal small-bubble aerators with increased strength, durability and reliability.
The design of AFT APM-AF-128T aerators allows reducing the requirements to the quality of air cleaning from dust. The actual service life is 10-12 years. The design of the aerators and their elements, in particular the frame tube, is protected by appropriate patents.
The basic design of AFT APM-AF-128T aerators is shown in Fig. 1.
Figure 1. Basic design of AFT APM-AF-128T-L* aerator
1 – perforated frame from profiled PE pipe; 2 – rubber O-rings; 3 – inner layer of dispersant in the form of a polymer braid; 4 – outer layer of the dispersant from the sprayed PE; 5 – holes; 6 – longitudinal air cavities. Note. *L: Length of the aerator.
The frame (1) of the aerator is a profiled thick-walled tube made of polyethylene with longitudinal stiffeners, which is manufactured according to an unparalleled technology developed by the specialists of ECOPOLYMER. This technology guarantees the size and shape of the frame profile along its entire length.
To connect AFM APM-AF-128T aerators in the branches, a special conical male thread is made on the one side of the frame, and on the other – the corresponding female one. Thus, one aerator is screwed into the other without a coupling. A plug is screwed onto the end aerator.
In addition to the aerators, the AQUA PRO-M aeration system based on the AFT APM-AF-128Т tubular aerators includes the following main components (Fig. 2):
Figure 2. The most common version of the AQUA PRO-M aeration system configuration
1 - main air duct; 2 - damper; 3 - downcomer 4 - air distribution manifold; 5 - air distribution manifold fitting system; 6 - reducer; 7 - AFT APM-AF-128T-L-BH tubular aerator; 8 - mobile aerator support; 9 - plug. Note. Items 1 and 2 are not included in the AQUA PRO-M aeration system.
Downcomers and air distribution manifolds are thick-walled polyethylene pipes with a diameter of 160 or 225 mm (the diameter is determined depending on the configuration and volume of the aeration system). The polyethylene pipes with male thread are welded to the manifolds for connecting the aerator branches.
service life of the air distribution system (downcomers, manifold) – 30 years.
Parameter | Value |
---|---|
Diffuser nominal length, m | 1; 1,5; 2,0 |
Outer diameter, mm | 128 |
Inner diameter, mm | 88 |
Headloss, kPa | 0,8 ÷ 2,6 |
Oxygen transfer efficiency, % per 1 m | 4,2 ÷ 9,0 |
Airflow, m3/h minimum optimum maximum | 6 10÷12 21 |
Bubble size, mm | 2÷5 |