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MERC ER01-12
17
9. Results Trial 4 (Hyde-04, 55
µ
m disc filter + 6 UV lamps): May 21 – 24, 2012
Water quality
conditions of control and treated water during the three-day hold time.
Control Tank
Mean
SD
Max
Min
Temperature (°C)
21.9
0.11
22.3
21.8
Salinity (psu)
5.3
0.01
5.3
5.3
DO (mg/l)
0.5
1.02
5.3
0.03
pH
N/A
N/A
N/A
N/A
Turbidity (NTU)
6.6
3.11
15.9
3.7
Treated Tank
Mean
SD
Max
Min
Temperature (°C)
22.1
0.10
22.3
21.9
Salinity (psu)
5.3
0.01
5.3
5.3
DO (mg/l)
0.9
1.38
4.4
0.04
pH
7.8
0.28
8.4
7.5
Turbidity (NTU)
7.1
3.05
15.0
3.2
Total Suspended Solids
(TSS) content of challenge water during uptake. Ambient describes
natural conditions of water in the Port of Baltimore and PT-1, PT-2, and PT-3 are results from
three sample time points (beginning, middle, and end of uptake).
Mean (mg/l)
SD
Ambient
19.9
0.23
PT-1
24.9
1.14
PT-2
23.9
0.50
PT-3
24.3
0.42
Dissolved Organic Carbon
(DOC) content of challenge water during uptake. Ambient describes
natural conditions of water in the Port of Baltimore. Control and treated show levels in test
waters from time-integrated samples collected through the entire uptake.
Mean (mg/l)
SD
Ambient
4.1
0.02
Control
4.3
0.11