Domestic biological sewage-treatment plant is the cheapest method of treating non-industrial sewage coming from:
- households
- schools
- small housing estates
- motels & hotels
- restaurants and other similar buildings and places
The sewage treatment plant, in its standard version, is consisted of one reinforced cement tank including three chambers:
- Preliminary sedimentation tank
- Bioreactor with immersed biological deposit
- Settlement tank
The tank, during assembly process, is installed in the ground, which makes it look perfectly integrated into the landscape.
The tank operation is based on three processes:
- Decaying and sewage sedimentation processes
- Fine-vesicular oxygenation process of the immersed biological deposit
- Sedimentation recirculation process
The processes are controlled automatically. The user is only required to supervise the regularity of the control system readings. In order to secure continuity of the plant’s operation, it is necessary to empty the preliminary sedimentation tank once per year.
Treatment effect is accordant to regulations specified in the ruling issued by the Minister of the Natural Environment of July 24th, 2006 concerning the conditions that must be met in connection with discharging sewage into waters or the ground and with disposing substances particularly harmful to the natural environment.
BIOK SEWAGE TREATMENT SYSTEM TYPE FOR 2 - 16 PEOPLE
|
Size (cm)
|
BIOK 2
|
BIOK4
|
BIOK8
|
BIOK12
|
BIOK16
|
|
Inflow ordinate
|
63
|
63
|
63
|
60
|
60
|
|
Outflow ordinate
|
73
|
73
|
73
|
70
|
70
|
|
Tank diameter
|
150
|
200
|
200
|
200
|
250
|
|
Tank height
|
285
|
285
|
285
|
332
|
332
|
|
Weight (t)
|
5,3
|
6,9
|
6,9
|
7,8
|
8,7
|
|
Capacity (m3/d)
|
0,30-0,45
|
0,60-0,90
|
1,20-1,50
|
1,80-2,10
|
2,40-2,55
|
|
Number of residents
|
od 2 do 3
|
od 4 do 6
|
od 8 do 10
|
od 12 do 14
|
od 16 do 17
|
(Visual drawing – Chart showing a bioreactor with a settlement tank with no technical parameters given)
The above sewage treatment plant type produced by BEWA has a Technical Approval issued by the Environmental Protection Institute.
Approval number: AT/2003 -08-0205.
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