Wastewater treatment plants AT 300 - AT 2000 oval MAXI with VFL® technology
Wastewater treatment plants AT 300 to AT 2000 oval MAXI are designed for centralized wastewater treatment solutions in municipalities up to 2000 PE. Capacitively suitable for sewage sources from 45 to 300 m3 / day. They are supplied as a complete technological line supplemented by a pumping station with mechanical pre-treatment, homogenization tank, sludge management and a complete technical infrastructure. The parallel connection of individual biological reactors ensures the possibility of staged construction.
They are used for the treatment of sewage and municipal wastewater from municipalities up to 2000 PE.
Treated wastewater, after biological treatment or tertiary treatment, is discharged into surface waters.
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Mechanical pre-treatment |
 |
Complete technical infrastructure |
 |
400 V electrical
connection for WWTP |
 |
Standard freight
vehicles transport |
 |
Possibility of staged
realization of the work
|
 |
Remote control of
wastewater treatment plant |
 |
WWTPs are prefabricated,
containerized
(including operating building)
|
Installation of WWTP type AT 300 to AT 2000 oval MAXI
They are installed in the excavation as recessed tanks on a reinforced concrete foundation slab about 400 mm thick so that the upper edge of the inspection entrances (chimneys) protrudes about 50 mm above the prepared terrain.
The pumping station, the buffer homogenization tank and the sludge tank are installed in the same way. Above these tanks there is a container building with facilities for the operator and also rooms for mechanical pre-treatment, blowers and sludge management, which form the complete technical infrastructure of the treatment plant.
Outflow quality
Guaranteed and normally achievable parameters at the outflow from the WWTP listed in the table:
| Parameter | Average value | Guaranteed value |
| COD | 35 mg/l | 75 mg/l |
| BOD | 10 mg/l | 15 mg/l |
| NL | 10 mg/l | 20 mg/l |
| N-NH4 | 2 mg/l | 5 mg/l |
| Ntot | 15 mg/l | 25 mg/l |
| Ptot | 3 mg/l | 7 mg/l |
Technical parameters
| WWTP Type |
Daily inflow
[m3/d]
|
Designed load
[kg BSK5/d]
|
No. of
reactors
[pcs]
|
Usable volume
of reactors
[m3]
|
Total dimesions
Length x Width
[m]
|
Total surface
area
[m2]
|
Power
input
[kW]
|
| AT 300 ovál MAXI | 45 | 18 | 1 |
76,1
|
29 x 18,5 | 537 |
24,56
|
| AT 400 ovál MAXI | 60 | 24 | 1 | 91,1 | 31 x 18,5 | 574 | 27,56 |
| AT 500 ovál MAXI | 75 | 30 | 1 | 109,8 | 33 x 18,5 | 611 | 27,56 |
| AT 600 ovál MAXI | 90 | 36 | 2 | 152,2 | 29 x 18,5 | 537 | 26,76 |
| AT 800 ovál MAXI | 120 | 48 | 2 | 182,2 | 31 x 18,5 | 574 | 31,78 |
| AT 1000 ovál MAXI | 150 | 60 | 2 | 219,5 | 33 x 18,5 | 611 | 31,98 |
| AT 1200 ovál MAXI | 180 | 72 | 3 | 273,3 | 31 x 18,5 | 574 | 37,08 |
| AT 1500 ovál MAXI | 225 | 90 | 3 | 329,3 | 33 x 18,5 | 611 | 38,68 |
| AT 2000 ovál MAXI | 300 | 120 | 4 | 439,0 | 33 x 18,5 | 611 | 43,78 |