Environmental Engineering Reference
In-Depth Information
1, 2 - Storage basins
3 - Sedimentation basin
4 - Microscreen filter
5 - Mixing basin
6 - Denitrification reactor
7 - Ozonation reactor
8 - Foam condenser
9 - DO
3
stripping chambers
10- Trickling filter
11- Flocculation jar
12- Ozone generator
13- Ozone monitor
Residual gases
Foam
8
Condensed
foam
Wo r k in g
flow
9
N
2
Air
Recycled
flow
Raw influent
7
Residual gases
10
Raw
i
nflue
nt
13
CH
3
OH
3
6
4
12
11
1
2
5
Overflow
stream
Sludge
Effluent
O
2
O
2
+ O
3
Fig. 1. Schematic diagram of pilot-scale wastewater treatment train at Blue Ridge
Aquaculture. Details are not drawn to scale.
Water
flow
Gas
flow
1
TF
used
3
O
3
conc.
O
3
dose
Oz. time Recircul. DR
2
Treatment
mg O
3
/l
water
lpm
lpm
mg O
3
/l gas
min
lpm (%)
%
1
22
36.6
6
6
4 (40%)
100
2
33
55.0
10
3
33
82.5
4
9
6 (60%)
50
4
22
55.0
1
Flow of the O
2
/O
3
mixture.
2
Recirculation rate in the denitrification reactor.
3
Proportion of cross section of trickling filter used.
Table 2. Controlled parameter conditions applied to the pilot station for the four
experimental treatments.
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