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Extended Aeration Activated Sludge Treatment Plants



DESCRIPTION:
The "GAZEBO" MINIBOXY/BCS, prefabricated in vibrated reinforced concrete (in compliance with Anti-earthquake law Cat. 1.) has been designed by the engineers of GAZEBO S.p.A. water treatment and is the result of the extensive experience acquired by the company in the treatment of domestic wastewater. It is made using RcK > 400 kg/sq cm concrete, vibrated on metal caissons and steam cured, reinforced with internal ribs, open face, with total elimination of porosity and gravel nests, with internal steel reinforcement with upgraded adhesion and electrically-welded square mesh type FeB 44K, factory tested.

The standard treatment cycle is performed through various compartments such as: lifting-storage, primary sedimentation, denitrification, aeration, sludge sedimentation-recirculation-thickening, effluent disinfecting.
The potential of the Minibioxy/BCS goes from a minimum of 10 to a maximum of 250 equivalent inhabitants. During the period of operation of these plants - from 1970 to the present - numerous test results have confirmed a BOD5 abatement higher than 92%.

On the basis of this, it can be stated that the Minibioxy/BCS "GAZEBO" is able to ensure treated water standards in compliance with applicable regulations. In the event of having to treat refluents from a residential complex consisting of 300 to 1,000 equivalent inhabitants, the MINIBIOXY/BSP combined basin type can be used (made of several monobloc tanks).

RECIPIENTS:
Small urban and rural communities, small companies and businesses, single-family homes, camping sites, motels, etc.

FIELDS OF USE:
Housing complexes and industrial facilities.

OPTIONAL ACCESSORIES: Driveway/pedestrian coverings - man-hole covers, holes, special materials (stainless steel) and treatments (painting).

PHOTO GALLERY:

Table 1 - Oxydation + Final Sedimentation
TYPE
EXTERNAL SIZE
MINIBIOXY/BCS
(Oxydation + Final sedimentation)
(A)
PEDESTRIAN
COVERING
max load
2 ql./mq.
(B)
(A)
+
(B)
DRIVEWAY
COVERING
max load
70 ql./mq.
(C)
(A)
+
(C)
Cod. E.P.
Equivalent Population
Wid.
cm.
Len.
cm.
Hei.
cm.
Kw.
inst.
Wei.
ql.
Thick.
cm.
Wei.
ql.
Wei.
ql.
Thick.
cm.
Wei.
ql.
Wei.
ql.
Water supply for E.P.
lt/g
160
lt/g
200
lt/g
250
MB-01 15* 12* 10* 160 180 250 1,10 60 10 7 67 20 14 74
MB-02 30* 25* 20* 160 250 250 1,10 72 10 9 81 20 18 90
MB-03 50* 40* 30* 200 250 250 1,10 85 10 11 96 20 22 107
MB-04 75 60 50* 250 250 250 1,10 95 10 14 109 20 28 123
MB-05 100 80 65 250 325 250 1,50 115 10 19 134 20 38 153
MB-06 125 100 80 250 400 250 1,50 134 10 23 157 20 46 180
MB-07 150 120 100 250 450 250 1,50 148 10 26 174 20 52 200
MB-08 200 160 130 250 550 250 2,20 167 10 32 199 20 64 231
MB-09 250 200 160 250 650 250 2,20 195 10 38 223 20 76 271
MB-10 300 250 200 250 750 250 2,20 223 10 44 267 20 88 311
MB-11 350 300 250 250 950 250 4,00 271 10 56 327 20 114 385
* branded product


Table 2 - Spare Machinery, Lift Station, Utility Room
SPARE MACHINERY SLUDGE LIFT STATION UTILITY ROOM
Code submersible
PUMP
(lifting)
Code air
BLOWER
(minibioxy/bcs)
Code Wid.
cm.
Len.
cm.
Hei.
cm.
Wei
ql.
Kw.
instal.
Code Wid.
cm.
Len.
cm.
Hei.
cm.
W
e
i
.

ql.
KW.
installed
KW.
installed
pedes.
cov.
2 ql./mq.
driv.
cov.
70 ql./mq.
MBP-01 1,30 MBS-01 1,10 MBST-01 140 160 260/270 50 55 1,30 MBG-01 150 82 150 16
MBP-02 1,30 MBS-02 1,10 MBST-02 140 160 260/270 50 55 1,30 MBG-02 150 82 150 16
MBP-03 1,30 MBS-03 1,10 MBST-03 140 160 260/270 50 55 1,30 MBG-03 150 82 150 16
MBP-04 1,30 MBS-04 1,10 MBST-04 140 160 260/270 50 55 1,30 MBG-04 150 82 150 16
MBP-05 1,30 MBS-05 1,50 MBST-05 140 160 260/270 50 55 1,30 MBG-05 140 160 210 44
MBP-06 1,30 MBS-06 1,50 MBST-06 140 160 260/270 50 55 1,30 MBG-06 140 160 210 44
MBP-07 1,30 MBS-07 1,50 MBST-07 140 160 260/270 50 55 1,30 MBG-07 140 160 210 44
MBP-08 1,30 MBS-08 2,20 MBST-08 140 160 260/270 50 55 1,30 MBG-08 140 160 210 44
MBP-09 1,30 MBS-09 2,20 MBST-09 160 180 260/270 60 68 1,30 MBG-09 140 160 210 44
MBP-10 1,30 MBS-10 2,20 MBST-10 160 180 260/270 60 68 1,30 MBG-10 140 160 210 44
MBP-11 1,30 MBS-11 4,00 MBST-11 160 250 260/270 74 83 1,30 MBG-11 140 160 210 44



Table 3 - Primary Sedimentation, Denitrification
PRIMARY SEDIMENTATION
(Imhoff tank)
DENITRIFICATION
Code E.P.
Equivalent
Population
Wid.
cm.
Len.
cm.
Hei.
cm.
Wei.
ql.
Code Wid.
cm.
Len.
cm.
Hei.
cm.
KW
Install.
Wei.
ql.
Water supply x E.P. pedestrian
covering
2ql./mq.
driveway
covering
70ql./mq.
pedestrian
covering
2ql./mq.
driveway
covering
70 ql./mq.
lt/pop.
160
lt/pop.
200
lt/pop.
250
MBF-01
15* 12* 10* 100 160 260/270 42 46 MBD-01 / / / / / /
MBF-02
30*
25*
20*
100
160
260/270
42
46
MBD-02 /
/
/
/
/
/
MBF-03
50*
40*
30*
140
160
260/270
50
55
MBD-03 /
/
/
/
/
/
MBF-04
75
60
50*
160
180
260/270
60
67
MBD-04 140
160
260/270
1,00
50
55
MBF-05
100
80
65
160
250
260/270
74
83
MBD-05 160
180
260/270
1,00
60
67
MBF-06
125
100
80
160
290
260/270
81
91
MBD-06 160
250
260/270
1,00
74
83
MBF-07
150
120
100
200
250
260/270
83
94
MBD-07 160
290
260/270
1,00
81
91
MBF-08
200
160
130
250
250
260/270
96
110
MBD-08 200
250
260/270
1,00
83
94
MBF-09
250
200
160
250
325
260/270
122
141
MBD-09 250
250
260/270
1,00
95
109
MBF-10
300
250
200
250
400
260/270
145
168
MBD-10 250
325
260/270
1,00
120
139
MBF-11
350
300
250
250
550
260/270
187
219
MBD-11 250
400
260/270
1,00
143
166
* branded product


Table 4 - Sludge collection, Disinfection
SLUDGE COLLECTION DISINFECTION
Code E.P.
Equivalent Population
Wid.
cm.
Len.
cm.
Hei.
cm.
Wei.
ql.
Code Wid.
cm.
Len.
cm.
Height
cm.
KW
Install.
Wei.
ql.
Water supply x E.P. pedestrian
covering
2ql./mq.
driveway
covering
70ql./mq.
pedestrian
covering
2ql./mq.
driveway
covering
70 ql./mq.
lt/ab.
160
lt/ab.
200
lt/ab.
250
MBA-01
15 12 10 / / / / / MBC-01 100 160 260/270 0,10 44 48
MBA-02
30 25 20 / / / / / MBC-02 100 160 260/270 0,10 44 48
MBA-03
50
40
30
/
/
/
/
/
MBC-03 100
160
260/270 0,10
44
48
MBA-04
75
60
50
/
/
/
/
/
MBC-04 100
160
260/270
0,10
44
48
MBA-05
100
80
65
/
/
/
/
/
MBC-05 100
160
260/270
0,10
44
48
MBA-06
125
100
80
160
250
260/270
74
83
MBC-06 100
160
260/270
0,10
44
48
MBA-07
150
120
100
160
290
260/270
81
91
MBC-07 100
160
260/270
0,10
44
48
MBA-08
200
160
130
200
250
260/270
83
94
MBC-08 100
160
260/270
0,10
44
48
MBA-09
250
200
160
250
250
260/270
95
109
MBC-09 100
160
260/270
0,10
44
48
MBA-10
300
250
200
250
325
260/270
120
139
MBC-10 100
160
260/270
0,10
44
48
MBA-11
350
300
250
250
400
260/270
143
166
MBC-11 140
160
260/270
0,10
52
57



FOR HIGHER TREATMENT POTENTIALS, PLEASE CONTACT THE MARKETING DEPARTMENT
PEDESTRIAN COVERINGS ARE PROVIDED WITH CLAS B125 CAST IRON OR GALVANIZED STEEL PLATE
DRIVEWAY COVERINGS ARE PROVIDED WITH CLASS C250/D400 CAST IRON INSPECTION MANHOLES
THE MINIMUM THICKNESS OF THE FOOTING SHALL BE 20 cm, AND IT SHALL BE REINFORCED WITH DOUBLE ELECTROWELDED STEEL MESHWORK, diam. 8 mm., mesh 20x20 cm.
A 3-5 cm SAND LAYER SHALL BE PLACED ON THE FOOTING TO LAY THE PREFABRICATED STRUCTURES
THE DIMENSIONS OF THE PREFABRICATED STRUCTURES ARE INDICATIVE. GAZEBO S.p.A. RESERVES THE RIGHT TO A POSSIBLE TOLERANCE OF A FEW CENTIMETRES


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