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WATER AND WASTEWATER TECHNOLOGIES

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XTA/XTAK

ABS submersible aerator XTA/XTAK

The submersible aerators XTA/XTAK are suitable for all gas-liquid reactions at temperatures below 70 °C and pressures below 2 bars absolute.

Applications in sewage and water treatment

Mixing and equalizing basins. Equalizing of wastewater pollution load and wastewater quantities, as well as avoidance of odor problems.

Activated sludge basins and SBR reactors. Biological degradation of organic substances.

Sludge stabilization. Avoidance of odor problems as well as further oxidation of the organic substances.

Flotation. Flotation of oil and grease. Lagoon aeration: Improvement of natural aeration.

Lagoon aeration. Improvement of natural aeration.

Neutralization. Neutralization of alkaline wastewater with CO2 or flue gas.

Special applications.

The submersible aerator is positioned on the bottom of the basin without anchorage. For maintenance and inspection work the aerator can be lifted by means of a mobile crane.

Construction

  • Easy and quick installation without emptying the tank
  • No aerosol effect and no sedimentation on the bottom of the basin
  • Good oxygen transfer (SOTR) and aeration efficiency values (SAE)
  • Self-cleaning system
  • Replaceable wear parts

Operation principle

The submersible aerator XTA/XTAK is a submerged motor, blower, pump and mixer, all combined in one unit.

It consists of a star shaped impeller directly connected to the motor shaft, a stator surrounding the impeller as well as an air pipe to atmosphere. The impeller rotates inside the stator creating a vacuum and automatically aspirating air through the air pipe.

At the same time, water flows into the impeller, is thoroughly mixed with the air and radially discharged through the channels of the stator. This system ensures fine bubbles. XTAK = extended channels increase SOTR and SAE values up to 15- 20 %.

Materials

Description Material
Motor housing EN-GJL-250(GG-25)
Motor shaft 1.4021(AISI420)
Fasteners (in contact with medium) 1.4401(AISI316)
Aerator parts (ТА152 - ТА602) 1.4581(AISI316)
Aerator parts (ТА901 - ТА2400) 1.4301(AISI304)
Bushing Bronze

Options: Exposed aerator parts hard chrome plated. Special materials on request.

 

Technical data 400 V/50 Hz

Hydraulics  Motor  Rated motorpower* Rated motorpower* Speed at50 Hz Ratedcurrent Immersion depth max. Weight 
    P1 kW P2 kW min-1 A m kg
XTA152 PE29/4  3.4  2.9  1410  6.4  3.0  105
XTA152 PE  40/4  4.4  4.0  1410  8.4  5.0  105
XTA302 PE60/4  6.7  6.0  1430  13.6  4.0  145
XTA302 PE 90/4  9.9  9.0  1425  18.1  6.0  155
XTA/XTAK602 PE110/4  12.0  11.0  1465  21.2 4.0 300/370
XTA/XTAK602 PE160/4  17.9  16.0  1455  30.5  7.0  310/380
XTA/XTAK901 PE 185/4  20.0  18.5  1458  35.2  4.5 455/510
XTA/XTAK901 PE220/4  23.7  22.0  1460  40.3  8.0 455/510
XTA/XTAK1200 PE220/4  23.7  22.0  1460  40.3  3.0 510/580
XTA/XTAK1200 PE 300/4  32.1  30.0  1459  54.6  6.5 520/590
XTA/XTAK1200 PE370/4  39.4  37.0  1460  68.1  8.5 535/605
XTA/XTAK1800 PE370/4  39.4  37.0  1480  68.1  4.0  540/615
XTA/XTAK1800 PE450/4  47.8  45.0  1480  81.0  6.0 545/620
XTA/XTAK1800 PE550/4  58.1  55,0  1480  94.1  9.0 790/865
XTA/XTAK2400 PE550/4  58.1  55.0  1480  94.1  4.0 820/895
XTA/XTAK 2400 PE 750/4  78.9  75.0  1480 131.0  7.5  835/915

*P1 = Power taken from mains; P2 = Power at motor shaft